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App(AA
An
pliedAC)
nnu
d Ana
al R
Applied
An
alytic
Rep
d Analytical Ch
nual Report 2
cal C
port
hemistry
018
hem
201
istry
18
AApplied
Ann
Applied
An
d Ana
nual
UniversitFac
Applied Un
4
d Analytical Ch
nual Report 2
alytica
Rep
ty of Duisbculty of Chem
Analytical Cniversitaetss45141 Esse
Germany
hemistry
018
al Che
ort 2
burg-Essenmistry Chemistrystr. 5 en
y
emistr
2018
n
ry
Applied Analytical Chemistry
Annual Report 2018
Page 3 of 40
Table of Contents
Applied Analytical Chemistry ................................................................................................................... 4
Applied Analytical Chemistry Staff ....................................................................................................... 6
Major News 2018 ..................................................................................................................................... 7
Hero of the Year 2018 ............................................................................................................................. 9
List of Projects 2018 .............................................................................................................................. 10
Effect-based analysis ............................................................................................................................ 12
Analysis of complex samples using multidimensional separation and detection techniques .............. 13
At column dilution (ACD) modulator developing for flexible and precise control dilution factors to overcome mobile phase incompatibility in comprehensive two-dimensional liquid chromatography ..................................................................................................................................... 14
µLC+LC-IM-qTOF-MS for a four-dimensional proteome analysis ......................................................... 15
Optimization of SPE protocols for the enrichment of phenolic compounds .......................................... 16
Characterization of the plasma lipidome using LC-IM-qTOF-MS/MS ................................................... 17
Lipidomic profiling of pancreatic cancer cells and corresponding liver metastases .............................. 18
Analysis of complex natural substances: Marijuana and Cannabinoids with GC+GC-APCI-IM-MS ......................................................................................................................................................... 19
Characterization of the metabolome of P. aeruginosa in biofilm as a lung infection model .................. 20
Thermogravimetry atmospheric pressure photoionization mass spectrometry (TG-APPI-MS) as analytical tool for the analysis of pharmaceutical tablets ...................................................................... 21
A modern concept for regulatory water monitoring via High-Performance Liquid Chromatography coupled to high-resolution mass spectrometry or how less can be more ................. 22
Development of an ESI and APCI dual ionization source ..................................................................... 23
Molecular Evolution in a Peptide-Vesicle System ................................................................................. 24
Ozone Stress Effect on the Intracellular Metabolites from Cobetia marina measured by GCxGC-MS ......................................................................................................................................................... 25
How to deal with mercury in sediments? A short summary about the aspects of mercury speciation in sediments. ........................................................................................................................ 26
New developments in chemical ionization at atmospheric pressure ..................................................... 27
Capillary zone electrophoresis coupled to drift tube ion mobility-mass spectrometry for the analysis of native and APTS-labeled N-glycans.................................................................................... 28
Doctoral Theses accomplished 2018 .................................................................................................... 29
Master Theses accomplished 2018 ....................................................................................................... 30
Bachelor Theses accomplished 2018 ................................................................................................... 30
Accepted and/or Published Scientific Publications 2018 ...................................................................... 31
Invited Lectures / Oral Presentations .................................................................................................... 33
Miscellaneous ........................................................................................................................................ 35
Institute Colloquium ............................................................................................................................... 37
Teaching ................................................................................................................................................ 38
Page 4 of 4
Applied
The Ap
Faculty
Essen (
with the
sources
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techniqu
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matogra
2018 wa
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and a ve
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pplied Analy
of Chemi
(UDE). The
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romatograp
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n 2018 wa
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Teaching
in the labor
additional
er has been
papers in
Nature Che
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published.
nternational
have contrib
ng many oth
nk especiall
p and in ma
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chemical pr
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effect-based
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C) is part o
ty of Duisb
September 2
nt of novel
n-target ana
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obility and
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n with gas c
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ytical Chem
Prof. Dr. OliverHead of the Res
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Mark your
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and outsid
for future co
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njie Li for o
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and honor
chael Lämm
51st Interna
Technique
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Applied
Regula
Prof. D
Dr. Mar
Dr. Sve
Maria M
Birgit W
Ph.D. S
Univers
Maha A
Domini
Amela
Lin Gan
Simeon
Julia Kl
Timo K
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Univers
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Dr. Yin
Appren
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40
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r. Oliver J. S
rtin Sulkowsk
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Madani
Wöstefeld
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Students
ha Kandasam
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rancisco Aya
sity, Hanoi)
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gzhuang Ch
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anken, Chris
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my, Tatiana K
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stian Müller, G
Applied
An
ry Staff
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Kiltau, Janina
(University o
Montero, Dr
Gina Paulus
d Analytical Ch
nual Report 2
m Chowdhur
a Nagel, Ina
of Barcelona)
r. Florian Ute
s
hemistry
018
Head
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Senior Rese
Technician /
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External
Susanne Brü
Annika Doel
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Teachin
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HPLC 2
It is a g
mance
June 20
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this con
The HP
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of chrom
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cations
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matographic
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jority of lect
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our calenda
re informatio
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sure to ann
ase Separa
in Düsseldo
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sium series
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mass spec
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fields and
s, plenary a
tures will b
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on visit our
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ermany
nounce that
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orf, German
Schmitz fro
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hases as w
ctrometry. T
ns and dete
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and keynote
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forward to y
website ww
d Analytical Ch
nual Report 2
t the 51st In
Related Te
ny. Prof. Mic
m the Univ
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The program
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surance asp
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your particip
ww.hplc202
hemistry
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nternationa
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chael Lämm
ersity of Du
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iples, over m
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Page 9 of 4
40
W
th
s
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fo
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(i
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Without the
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nternational
Applied
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Hero
outstandin
2018 wou
y. In additio
curement,
ries of the
aunch of th
ion. Furthe
and has pu
ature Chem
conference
d Analytical Ch
nual Report 2
of the Yea
ng help of
uld not h
on to coun
Sven has
AAC and,
he Teaching
ermore, he
ublished six
mical Biolog
es.
hemistry
018
r 2018
Dr. Sven M
ave been
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Applied Analytical Chemistry
Annual Report 2018
Page 10 of 40
List of Projects 2018
(Abstracts of these projects within the next pages)
Effect-based analysis
Sven W. Meckelmann, Julia Klein, Martin Meyer
Analysis of complex samples using multidimensional separation
and detection techniques
Julia Klein
At column dilution (ACD) modulator developing for flexible and precise control
dilution factors to overcome mobile phase incompatibility in comprehensive two-
dimensional liquid chromatography
Yingzhuang Chen, Junjie Li
µLC+LC-IM-qTOF-MS for a four-dimensional proteome analysis
Lidia Montero
Optimization of SPE protocols for the enrichment of phenolic compounds
Martin Meyer
Characterization of the plasma lipidome using LC-IM-qTOF-MS/MS
Kristina Rentmeister, Sven W. Meckelmann
Lipidomic profiling of pancreatic cancer cells and
corresponding liver metastases
Sven W. Meckelmann
Analysis of complex natural substances:
Marijuana and Cannabinoids with GC+GC-APCI-IM-MS
Christian Lipok
Characterization of the metabolome of P. aeruginosa in biofilm
as a lung infection model
Timo Koehler
Thermogravimetry atmospheric pressure photoionization mass spectrometry
(TG-APPI-MS) as analytical tool for the analysis of pharmaceutical tablets
Dominik Brecht, Florian Uteschil
A modern concept for regulatory water monitoring via High-Performance Liquid
Chromatography coupled to high-resolution mass spectrometry
or how less can be more
Susanne Brüggen
Applied Analytical Chemistry
Annual Report 2018
Page 11 of 40
Development of an ESI and APCI dual ionization source
Dominik Brecht, Florian Uteschil
Molecular Evolution in a Peptide-Vesicle System
Amela Bronja
Ozone Stress Effect on the Intracellular Metabolites from Cobetia marina
measured by GCxGC-MS
Junjie Li
How to deal with mercury in sediments?
A short summary about the aspects of mercury speciation in sediments.
Claudia Hellmann
New developments in chemical ionization at atmospheric pressure
Christian Lipok
Capillary zone electrophoresis coupled to drift tube ion mobility-mass spectrometry
for the analysis of native and APTS-labeled N-glycans
Julia Klein, Sven Meckelmann
Page 12 of
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Julia Klein
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n mass However, pression lution of
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Page 14 of
At col
tio
With tchromadimensimeets tresearc
Howevevolume chromaestabliscomprenormal dilution the injecolumn sions.
In this been with/witthe comHILICxRcolumn solvent Furthermchosen further column comprematograthe futu
________
Funded b
f 40
lumn diluti
on factors t
he combintography hional separthe ever-in
ch fields, suc
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tography. Tshed to ovehensive twtwo-dimenswithout spction pumpdilution fac
work, systedone bethout the atmbination oRPLC, whicinterface isconflicting
more, the ras a real s
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Yingzhu
different t the revoluch dramaticdemand for
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earch has e setups terface in
HILIC and hat the at-esolve the very well.
g root was hich offers ility of at-ruction of
onal chro-gonality in
Chinese Chem
d Analytical Ch
nual Report 2
developing
phase inco
liquid chro
uang Chen,
separation utionary chcally improvr the analycine, biolog
wo columnsmit the widem, a new ompatibilitychromatog
ditional injesportation. Mgradient pum
optimize t
mical Society
Figure: Co
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018
g for flexib
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omatograp
Junjie Li
mechanishanges comves the peaysis of the y, etc.
s due to theespread uinterface, a
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of the large-dimensionadilution (ACmbination we is modifiealize the atntrol of the sely regulateons in both
ut ACD modu
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Page 15 of
Proteomthroughbiologictechniqu
In this maximusamplesliquid cspectroemployeorthogophases dimensibased achievemass-to
________
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Funded b
Figure: A) SeparµLC+LC-B) Ion msame m/z
f 40
µLC+L
mics is one h the analyscal samplesues able to
regard, a um separats. The four
chromatogrametry (µLCed was a µ
onality betwof the fir
ions, IM sein the sha
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by: Agilent Tec
ration of E. co-IM-qTOF-MSobility separaz value.
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of the bransis of the ps, which pprovide wit
four-dimenion of threr dimensionaphy to ionC+LC-IM-qTLC+LC me
ween the twrst and theeparated theape-to-chargwhich providtio.
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ner: Dr. Stepha
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d Analytical Ch
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a four-dime
Lidia Monter
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Page 16 of
O
Phenolinumberradiatiosuggestin a varover theand scieand appavailablindividucompoupossible
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Figure: PDoE shostances.
f 40
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xperiments m parameted recoverieast 50% an(with a few s to extracnces in a sin
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PCA of 128 Sows grouping
on of SPE p
mong the mability in allbiosynthesdant effect orapies or g
30 years ha. Many diffeat today mantification, tnces. In tocus is insteples for ana
suspected--IM-MS, theto be foun
many phenoluation of e
on specialers. These
es for all sund enrichme
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Nagel, Düren,
PE-experimeg of chemicall
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An
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M
most comm plants for is. The chof these coeneral heas created a
erent methoany differenthe emphasthe characead on beinalysis.
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ent factors bs). This opech the broae preparatio
, Germany
nts based only similar sub
d Analytical Ch
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for the enri
Martin Meye
mon phytocprotection emical prompounds, tlth-conscioua greater inods of extrat approache
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nterest in foaction and aes to this fiy placed onof phytoch
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Page 17 of
There a100,000reportedisobarictrometrying isobincreaseterminetion of li
We are pling liqration atrile/isop100 nMdoing a
Current1,000 otion timnegativewith thetakes pland cancause o
Figure: 2mode us
________
Collabora
f 40
Charac
are at least0 lipids estid in the bigc lipids, why (IMS) is abaric compoed separatid using a dipids in com
using a thrquid chromaa long 60propanol on
M (2 pmol onmatrix mat
tly, we can of them on ses, CCS vae ionizatione data indelace after thn be easily of the prior s
2D plot (drift ssing data inde
____
ative Project –
cterization o
Kristi
t two big cmated to ogest databaich are diffan additionaounds in theon power. F
drift-time IMmplex biolog
ree-dimensiatography to0 minutes n a C18 con column) ftch calibratio
detect abospecies levealues and
n mode. Forpendent MShe drift tubeassigned. Fseparation b
spectra vs. mependent MS/
– Project Partn
Applied
An
of the plas
ina Rentme
challenges ccur in natuase (LipidMficult to sepal separatioe gas phaseFurthermoreS, which is
gical sample
ional lipidomo the Agilengradient w
olumn is usfor most lipon of deute
out 3,000 lel. For this m/z values r further ideS/MS acque fragment Furthermoreby drift time
mass spectra)/MS acquisiti
ner: Dr. John F
d Analytical Ch
nual Report 2
ma lipidom
eister, Sven
in analyzinure but onl
Maps). On thparate by lion dimensioe accordinge, the colliss useful as aes such as
mics approant 6560 IM-qwith a mixsed. The deid classes i
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lipid featurewe use an of the mos
entification, isition modions have te, one gets e.
) of LPC (16:0ion.
Fjeldsted, Agile
hemistry
018
me using LC
W. Meckel
ng lipids. Oy 40,000 liphe other haquid chrom
on, which al to their sizion cross sean additionhuman plas
ach with a hqTOF-MS. Fxture of waescribed mein human p
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0) (m/z = 480.
ent Technolog
C-IM-qTOF
mann
On one hanpids are relnd, there is
matography. llows the see-to-chargeection (CCSal parametesma.
high separaFor the chroater/acetonethod showplasma, whi12 lipid clas
r method auild databa
nt adducts iectra for allstrument. Srift time as tectra with lo
3090) measu
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F-MS/MS
nd, there arliably identis a large nu Ion mobilieparation oe ratio leadiS) can be eer for the id
ation poweromatographnitrile and ws low LOD
ch was detsses.
and identify ase, includinin ESI posi lipids are o
Since fragmtheir precurow backgro
red in ESI ne
lara, USA)
re about fied and
umber of ty spec-
of coelut-ng to an asily de-
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r by cou-hic sepa-acetoni-
Ds below termined
roughly ng reten-tive and obtained
mentation rsor ions ound be-
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Page 18 of
People 25% sustage. Oby that for the dmetasta
In a re(workingcells anfrom a tumor aand furtcells weIM-qTO
Even froAfter feanalysisdifferentypes.
Figure: Left: 2D-respondiRight: PLcation of
________
Collabora
f 40
diagnosed urvive the fiOnly in latertime the cadevelopmenasis is yet p
cently startg group Ba
nd comparemouse mo
as well as frther grown ere extracte
OF-MS.
om the obtaeature extras using unices for var
Heat map of ing cells fromLS-DA analysf the primary
____
ative Project –
Lipidomic
with pancrrst year, ber stages, syancer has ont of metasoorly under
ted researcrbara Grüned these wit
odel establisrom the corin culture to
ed and analy
ained raw daction, the variate andrious lipid c
the obtained m a liver metasis of the datatumor cells a
– Project Partn
Applied
An
c profiling
correspon
Sven
reatic canceecause therymptoms aroften spreadtases is therstood.
ch project er), we havth the matchshed in therrespondingo acquire a ysed using
data, distincdata were
d multivariaclasses allo
LC-IM-qTOFastases. a after featureand the metas
ner: Dr. Barbar
d Analytical Ch
nual Report 2
of pancrea
ding liver m
W. Meckel
er have a vre are usuare specific ed into othere liver. How
in cooperave profiled thing cells oe group of g metastasesufficient athe establis
ct differenccleaned upte (PCA an
owing a co
-MS data for
re extraction astases.
ra Grüner (Mo
PC2
hemistry
018
atic cancer
metastases
lmann
very poor prally no symenough to sr parts of th
wever, the u
ation with the lipidome
of a liver meBarbara G
es from themount of ceshed lipidom
es betweenp using Lipnd PLS) apmplete clas
a pancreatic
and data clea
olecular Tumo
-50
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cancer cell e
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After diagnohe disease ncreatic canne of the firiological pro
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Page 19 of
The anainterestchallengcompletproducelegal reg
The comultidimchromaFurthermshould becauseplot andbecauseevaluatiin the se
________
Funded b
Figure 1GC+GC-
Figure 2m/z 311(CBND-C
f 40
M
alysis of m, but the deging. On ote profile of er but on thgulations.
omplexicity mensional tography (Gmore the cdrastically e no softwad the peak e data acqion, a 2D-Gecond dime
___
by: Internation
. Analyse of aIM-qTOF-MS.
2. Separation.1978. Poss
C5), cannabin
Analy
Marijuana a
marijuana aneterminationone hand, f the drug cahe other han
of natural chromatogrGCxGC), wcoupling of increase th
are is availawidth after
uisition of tGC method wension was
al Restek Aca
an ethanol ex.
n of two isobsible cannabnol (CBN-C5).
Applied
An
ysis of com
and Cannab
C
nd the deten of all compMarijuana an help to idnd, Marijua
samples, raphy tech
with a highe1D- or 2D
he peak caable, which r the seconthis instrumwith a longedeveloped.
ademic Suppo
xtract of mari
baric compobinoids: can
d Analytical Ch
nual Report 2
mplex natu
binoids wit
Christian Lip
ermination opounds in nis used asdentify whena is used
such marhniques aser peak capD-GC with pacity. But can simplify
nd dimensioment is too
er modulati
ort Program
ijuana with
ounds with nabinodiol
hemistry
018
ural substa
th GC+GC-
ok
of all ingrednatural sams an illegaere the planas an med
rijuana has comprehe
pacity compion mobilityGCxGC-IM
y the four-don (100-600low. To ovon time (20
Therewas extrashowGC+GmeasMobiMasscombAgilefrom beenFigurisobanot chromup, tMS mmulti-outstallowcomppolarand m
nces:
APCI-IM-M
dients is a ples such al psychoact has grownicinal drug
led to thensive twopared to ony-mass speM-qTOF-MSdimension d0 ms) is to ercome this
0 s) and a lo
erfore, GCused to act of ma
ws the conGC-APCI-IMsurement. Ality Quadru
s Spectrombination withnt and a Leco. Abo
detectere 2 showsaric compou
be sepamatographythe GC+Gmethod wor-heartcuttinanding sep
ws the pounds basrity, size mass-to-cha
MS
subject of as marijuanactive drug n and to ideand there a
he developo dimensione-dimensioectrometry S is hard todata into a r
narrow fors and simponger colum
C+GC-APCanalyse an arijuana. Fntour plot M qTAn Agilent 6upole Time-meter was h a 6890N Gfour-jet m
out 100 spoed. Furths the separunds, whicarated wity and MS.
GC APCI-IMrks as a cog approach
paration powseparatio
sed on boilin(shape)-to
arge ratio.
growing a is very and the
entify the are strict
ment of nal gas
onal GC. (IM-MS)
o realize readable r IM-MS, plify data mn (7 m)
CI-IM-MS ethanol
igure 1 of the
TOF-MS 6560 Ion -of-Flight used in GC from
modulator ots have hermore, ration of ch could th 2D-To sum
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Applied Analytical Chemistry
Annual Report 2018
Page 20 of 40
Characterization of the metabolome of P. aeruginosa in biofilm
as a lung infection model
Timo Koehler
Pseudomonas aeruginosa is an opportunistic pathogenic germ, which leads to nosocomial infection. Especially the lung of cystic fibrosis patients is mostly colonized by this bacterium, in form of a biofilm, and leads to fatal lung infections, which causes the early death of cystic fibrosis patients due to raspatory failures. The expected life time of cystic fibrosis patient is increased from about 8 years in 1974 to about 40 years nowadays but this was achieved by an intensive treatment with antibiotics. The drawback of this treatment is the increasing re-sistance of the bacterium against the antibiotics. To reduce the therapy with antibiotics and allow another extension of increase the life time of cystic fibrosis patients a non-invasive ear-
ly detection technique is necessary, but still not developed.
In this project such a detection technique should be developed. Therefore, a biofilm system under adapted lung conditions was planned and tested. This three-phase ap-proach, shown in the left figure, is a biofilm system, where the metabolites are going to be sampled using thin film microextraction (TFME) with PDMS films. The advantage of this model is that in addition to the metabo-
lites of the biofilm, the substances of the nutrient and the headspace can be collected and analyzed. This allows a differentiation of the detected and characterized substances in sub-strates and metabolites.
In the first step of the project, a suitable film material and manufacturer was selected. Thereafter, the cleaning process for the selected film was optimized with the aim of minimal initial contamination. A suitable separation and detection technique for the loaded films, using a thermo desorption system (TDS A2, Gerstel GmbH, Muelheim, Germany) with a GC-MS (Agilent Technologies Inc., Santa Clara, USA) was developed. The development of the TD-GC-MS method was carried out using an aqueous solution consist of twelve standards. The standards were potential metabolites of P. aeruginosa and are already published in scientific journals. With the developed method we are able to identify and quantify several of these possible metabolites down to nanomolar concentrations in a matrix of the nutrient. Furthermore first TFME experiments using liquid cultures of three different strains of P. aeruginosa shows that several metabolites, produced by P. aeruginosa can be detected with the developed method. At the moment we are optimising the developed method with the aim of lower LODs for the potential metabolites and higher peak capacity.
___________
Collaborative Project – Project Partner: PD Dr. Ursula Telgheder (UDE) and Dr. Jost Wingender (UDE)
Funded by: German Research Foundation (DFG), Bonn, Germany
Culture medium
Biofilm
Foils
Figure: schematic overview of the biofilm system for P. aeruginosa as lung infection model.
Applied Analytical Chemistry
Annual Report 2018
Page 21 of 40
Thermogravimetry atmospheric pressure photoionization mass spectrometry
(TG-APPI-MS) as analytical tool for the analysis of pharmaceutical tablets
Dominik Brecht, Florian Uteschil
The reliability of pharmaceutical formulations is an important issue in the industrial and even more important in developing countries. Therefore, a trusted analysis of produced tablets or suspected falsified drugs is very important. At the moment the product control in the industry and the investigation of falsified drugs is done by DSC analysis which only gives the information of physical properties like the melting or boiling point of an analyte. Hyphenated techniques like GC-MS and LC-MS are other methods which are used for the analysis of pharmaceuticals. These methods go hand in hand with a long sample preparation like the extraction of the analytes from the tablet matrix and in some cases also require derivatization. In the analysis of tablets described before the TG-APPI-MS shows an advantage in the sample preparation which is very easy and consists of grinding the tablet to a homogeneous powder. The use of the TG-APPI-MS simplifies the analysis of tablets. When using an APPI-MS as a detector for the evolved gas of the thermogravimetry additional information about the molecule masses are required. This is caused by the soft ionization of the APPI. Additionally, the TG is often equipped with a DTA analysis which also can increase the knowledge about the physical properties of the sample.
The presented figure shows the information which can be collected by the analysis of an acetylsalicylic acid (ASA) tablet by the TG-APPI-MS. Figure A is the TG analysis of 4 mg of the ground tablet. It shows a sharp peak of the DTA signal at 132 °C which is the melting point of the acetylsalicylic acid in the formulation with the excipients. The melting point of the pure ASA is 136 °C. One excipient can be detected which is shown in figure B. Here a signal for the m/z 76 presents the
protonated molecule of glycine. So, the TG-APPI-MS can identify excipients in the pharmaceutical formulations. Also, the fragmentation of acetylsalicylic acid is observed with the m/z values of 121 and 163. These abilities to identify the active substance as well as the excipients, makes the TG-APPI-MS a powerful instrument for the product control and identification of falsified drugs with less sample preparation.
_________
Funded by: Hitachi High-Tech Corporation, Mito, Japan
Figure: A: Thermogravimetric analysis of an acetylsalicylic acid tab-let with the TG-APPI-MS; B: Mass spectrum averaged over the whole analysis time.
50 100 150 200 250 300
0
1x105
2x105
3x105
4x105
100 200 300 400 500-12
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Temperature [°C]
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Page 22 of
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without loswater bodies
ation strategie
quid
biological ment and e (WFD), ters and
classified c., which s to the by goal-ffort.
ng liquid tical run
ccuracy. ualitative ffers the e water ing any s.
es
Applied Analytical Chemistry
Annual Report 2018
Page 23 of 40
Development of an ESI and APCI dual ionization source
Dominik Brecht, Florian Uteschil
The demand on high throughput methods for LC-MS is a growing market in the analytical chemistry. Therefore, our group is working on solutions to increase the sample throughput in chromatographic analyses hyphenated with mass spectrometer. Here, we focused our research on the development of new ion sources for mass spectrometry. In this work an ion source should be created which is capable to ionize the analyte molecules with electrospray ionization (ESI) or atmospheric pressure chemical ionization (APCI). Our first attempt to realize such a source is to combine the ESI and the APCI probe in one ion source housing with two entrances for the effluent of the HPLCs. The high sample throughput is realized by connecting two HPLCs with a six-port switching valve which switches between the two HPLCs and the two probes of the ion source. The challenge of this project is to create an ion source which is comparable to single probe ion sources, but compromises must be made because ESI and APCI ionization relies on different ionization mechanism. ESI ionization takes place in the liquid phase and APCI in the gas phase, therefore, there is a challenge to find the right temperature to use both probes as efficient as it is possible. This new ion source shall reduce the delay time of a mass spectrometer to increase the efficiency of mass spectrometric analyses.
The figure presents one of the first analysis with the new developed dual probe ion source. One sample of caffeine (50 ppb) is injected in HPLC 2 and one sample of reserpine (50 ppb) is injected in HPLC 1. Both HPLCs are started at the same time. The chromato-gram is divided in two parts the first is the detection of caffeine using the APCI probe (HPLC 2). After that the six-port valve switches between the two probes and the effluent of the HPLC 1 is directed into the ESI probe. Reserpine and caffeine are detected as protonated molecule ion with a mass of 609 Da and
195 Da, respectively. The first experiments show promising results as it presented here. Especially the short equilibration time of the ESI ion source after the switching of the valve supports a high throughput method, in which analyses can be done by ESI or APCI in one LC run.
_________
Funded by: Hitachi High-Tech Corporation, Mito, Japan
0 50 100 150 200
0,0
2,0x105
4,0x105
6,0x105
8,0x105
1,0x106
ESI
reserpine
Inte
nsity
[cp
s]
RT [s]
caffeine
APCI
Figure: Chromatographic analyses of a caffeine solution (HPLC 2) and a reserpine solution (HPLC 1) by the ESI-APCI- dual probe ion source.
Page 24 of
Based system proposecyclic psupplyinthe pep
will evethe bilayto simupressurIn ordervesiclespressurpressuris inducducts frlution wLC-qTO
Figure EIC's opeptide amino GASDDGGSDESLLLKKdrophilicphobic have thamphiply, this accumuof mem
________
Collabora
Figure 1lation in
f 40
on the moundergoin
ed. This sysprocesses, ong peptidesptides by th
ntually be eyer membra
ulate conditre phase eqr to accelers, the tempre is repeatre cycle, a pced. The srom the aquwere analy
OF-MS.
2 is showof a possib
with the acid comb
DE, GEE, K. They coc as well a
amino ace potencial hiles. Most
peptide hulated and pbrane vesic
____
ative Project –
: Mechanismthe presence
Molecula
del "origin g structurastem is beinone of whics from a varhe vesicles
eluted by scane and remtions given quilibrium aprate the peerature insitedly switchphase transsolid pro-ueous so-yzed with
wing the ble hexa-
possible binations: GGTDDE,
VTLLKK, ontain hy-as hydro-cids and to act as t probab-has been preserved fcles.
– Project Partn
of peptide see of vesicles.
Applied
An
ar Evolutio
A
of life in dal reproducng formed uch offers veriety of aminand of the
cCO2. Whemain partiain depths
pparatus coptide formaide the cell hed betweesition from s
from hydroly
ner: Prof. Ulrich
election and
Figure 2: E593.2035.
d Analytical Ch
nual Report 2
n in a Pept
Amela Bronj
deep-rechinction, self-ounder early esicles as tno acids. Te vesicles b
reas amphially protecte
between 1ontaining lipation cycle
is kept at en 100 bar supercritical
ysis in a se
h Schreiber (U
accumu-
EIC’s of a po
hemistry
018
tide-Vesicl
ja
ng tectnic faoptimization
earth condhe structurahe main meby the pept
production1 is illustrawhich formto. On thformed bycircles) wilvesicles aphase whOn the rigby hydroph
iphilic peptided against h1 and 7 kmid vesicles and to indu120°C duriand 70 ba
l scCO2 to
election pro
UDE), Prof. Ch
ssible hexap
e System
aults", an e, and moleitions by thal environmechanism istides togethn and selectation three med peptidehe left sidhydrophilic
ll undergo land remainere they uht side pephobic aminodes (center
hydrolysis am of the eand 11 amiuce selectiong the whoar every 30gaseous gC
cess induce
hristian Mayer
eptide with th
efficient anecular evo
he interactioment, with ts the stabilizher with a cction of both
possible sces can be ede peptidec amino aciittle interacn in the aundergo hyptide chainso acids (redr) will accumand elution. arth's crustino acids waon pressure
ole experime0 min. DuriCO2 and vic
ed by the p
r (UDE)
he m/z [M+H]
d stable lution is
on of two he other zation of constant h. Figure cenarios exposed chains ids (blue tion with aqueous
ydrolysis. s formed d circles) mulate in
In order t a high as used. e on the ent. The ng each ce versa
presence
+:
Page 25 of
Cobetiaal. Consfouling the last garding
Ozone tCobetiastress eaccordin
After spthe ozooverlayesample metaboeg. EthUndeca
Figure: Cspiked b
________
Collabora
Funded b
f 40
Ozone Stre
a marina, a siderable remodel systdecade, ba to certain c
treatment, ka marina ineffect. Afterng to the or
piking, as shone stress ed patternscould be
lites (in redhandiamine,anoic acid, T
Contour plots) spiked with
____
ative Project –
by: Mercator R
ess Effect
Gram-negaesearch oveem in mariarely focusecellular proc
known as a different e
r extractionrthogonality
hown in Figwith the 6
s (in yellow)found in th) was decre Glucopyra
Tetradecano
s of intracelluh 600 μM ozon
– Project Partn
Research Cent
Applied
An
on the Intr
measur
ative marineer past few ne or similaed on metacesses.
a sufficient dextent. Diffe, the deriva formed by
. b, the num600 μM dos
indicate thhe normal eased or disanoside, Pyoic acid and
ular metabolitne dosage c)
ner: Profs. T. S
ter Ruhr Gmb
d Analytical Ch
nual Report 2
racellular M
red by GCx
Junjie Li
e bacteriumdecades haar circumsta
abolites asp
disinfection erent amouatized samptwo column
mber of metsage. As cat the majostate one. sappeared yrrolidionond Myristic a
tes of Cobetiacomparison
Schmidt (UDE
H (MERCUR)
hemistry
018
Metabolites
xGC-MS
m, was first as indicatedance. The ect – the un
method, haunt of ozonples were dns, Rxi-5sil
tabolites wacomprison ority of the c
On the otbecause of
ne, Azelaoycid amide (
a marina fromvisualized by
), A. Rosenha
) , Essen, Germ
from Cobe
proposed ind its feasibleprevious stnique chem
as been moe was spik
determined MS and Rx
as obviouslywith GasPecompounds her hand, the ozone
yl Chloride, 1-8).
m GCxGC-MSy GasPedal
ahn (RUB), W.
many
etia marina
n 1971 by Ce features atudies, espe
mical fingerp
odified to stked to obsewith a GCx
xi-17sil.
y decreaseedal in Fig
s from ozona large nustressing coHexanedio
S a) normal st
. Schuhmann
a
Cobet et as a bio-ecially in prints re-
tress the erve the xGC-MS
d due to g. c, the e spiked
umber of ondition, oic acid,
tate, non-
(RUB)
Page 26 of
AccordiOrganizmost dreason mercurydiffer inthis factfor the econditiodivided which enrichm
Sedimeanthropsedimensituationto posemethylmwith spe
For theHowevemodificathe extra very containiseparatvery frediscuss
Due to numberis suitab
________
Funded b
f 40
A short su
ng to thzation, merdangerous for this is
y in differe their degret, a speciatevaluation o
on. The sinto sev
are definment, separa
ents serve pogenic influnts, in partn. Thereforee a great mercury conecial caution
e extractioner, the acidiations. Dueraction is ne
frequently ing compoution of the sequently used in the lit
the complr of publicatble for differ
____
by: Federal Ins
How
ummary ab
he Worldrcury is on
substancs the occurent specieee of toxicittion is indisof the envirspeciation veral sub-
ned by eation and de
as an inuences (e.gticular by the speciationchallenge ncentration n.
n of sedimeic extraction to the veryecessary. F
used metunds with aspecies withsed methoderature, wh
exity of thetions in thisrent sedime
stitute of Hydro
Applied
An
w to deal wi
out the asp
Cla
Health ne of the ces. The rrence of
es, which ty. Due to spensable ronmental
can be -sections,
extraction, etection.
dicator of g. industry) he speciatin of mercuryfor analyticis only 0.1
ents mainlyn is one of ty low contenFor the enrichod and pa high affinh a suitableds for this ile (CV)-AF
e speciatio field the go
ents.
ology, Koblen
d Analytical Ch
nual Report 2
th mercury
pects of m
audia Hellm
the state over time.on, helps i
ry in sedimecal chemis1-1% of the
y acidic, althe most cont of methylchment of m
provides a nity for mere separation
purpose. FFS and ICP-
on of mercuoal is to find
z, Germany
hemistry
018
y in sedime
ercury spe
ann
of the eThe knowlein the asseents is still bts. Above
e total merc
lkaline or dommon techmercury, a mercury spenumber of
rcury. After n method taFor the de-MS are the
ury in sedid a working
ents?
eciation in s
nvironmentedge about essment of being discusall, sedime
cury conten
distillative mhniques andseparation ecies solid f different a successf
akes place. tection a lo
e most comm
ments and g, robust sta
sediments
t, as they the compothe enviro
ssed and coents, in whnt, must be
methods ard is used inor enrichmphase extrphases, e.
sful enrichmHPLC andot of methmon.
the resultandard met
.
reveal, osition of onmental ontinues hich the
e treated
re used. n various ent after action is .g. thiol-
ment, the GC are
hods are
ing high thod that
Page 27 of
Gas chrimpact tion. Thhigh deanalytesidentific
Chemicsoft ionfragmenthe molsitive an
GC-APC
reprodupolar) wand the
________
Collabora
Figure 1:
f 40
New de
romatograpionization (
his fragmentgree of agrs do not ov
cation of the
cal ionizationization withntation. Couecular formnalysis by q
CI is not the
ucibility. Thewas betweere should b
____
ative Project –
: New develop
evelopment
phy (GC) coEI). This tetation allowreement witverlap. Come analytes.
on at atmosh APCI proupled with a
mula of the mquadrupole t
e ion sourc
e relative sen 1-10% (ibe room for
– Project Partn
ped GC-APC
Applied
An
ts in chemi
C
oupled to mchnic produ
ws the identh these dat
mplex samp
spheric presovides maina high-resomolecule. Ftandem MS
ce of choice
standard denter-day). Hfurther impr
ner: Dr. Terry S
I source.
d Analytical Ch
nual Report 2
ical ionizat
Christian Lip
mass spectrouces mass tification viatabases, it i
ples show v
ssure (APCnly the mololution massFurthermoreS/MS are po
e for GC-MS
eviation of However, nrovement.
Sheehan, Agil
hemistry
018
tion at atm
ok
ometry (MSspectra wit
a a databasis necessar
very often c
CI) offers a ecule peaks spectromee, because ossible.
S and all coimprovecommepoor reconstaninside closed (Fig. 1) surrouncharactreactionexact temperapositioncolumnGC-AP
5 different ot all possi
ent Technolog
ospheric p
S) is usuallyh a high de
se comparisry that the mcoelution wh
way out ofk and causeeter it is poof no fragm
ommercial sed. One corcially ava
eproducibilitnt conditionthe ion soAPCI sourwhich is
nding room terized byn chamber
settings ature, gasn of corona. The newCI already stest substable settings
gies (Santa Cl
pressure
y done with egree of frason. Howevmass specthich compli
f this problees no or v
ossible to dementation, v
sources canommon proailable souty, becausens in the gaource. Therrce was de
isolated frair. This s
y a veryand ena
of hs flows, pa needle aw construcshows an imances (lows are optim
lara, USA)
electron gmenta-
ver, for a ra of the cate the
em. The very little etermine very sen-
n still be oblem of urces is e of non as phase refore, a eveloped rom the
source is y small bles the humidity, pressure, and GC ction for mproved
w to high mized yet
Page 28 of
Capill
Capillarand iontechniqu
Protein associastructurone-dim
In this w(DTIM-Mnative acomplexindividuseparat
tial assi6). Thisvarious
________
Collabora
Figure: D(f – h) gly
f 40
lary zone e
fo
ry zone ele mobility spues for the
glycosylatated with a wral variabilitymensional se
work, the fiMS) has beand 8-aminxity of glycaally, shown
ted in CZE
gnment of p work is a sapplication
____
ative Project –
DT spectra ofycans associ
electrophor
or the anal
ectrophoresipectrometryseparation
ion is onewide rangey, the analyeparation is
rst on-line ceen perfomenopyrene-1,an signals wn for both, nE exhibited
peaks in theshowcase fons in the futu
– Project Partn
f AGP (c – e) iated with the
Applied
An
resis coupl
lysis of nat
Julia Klei
is (CZE) bay (IMS) basof complex
of the moe of biologicysis of glycs applied.
coupling of ed to furthe,3,6-trisulfonwas revealenative and A
an unexpe
e DTIMS spor the high pure.
ner: Prof. Chris
and Fetuin e major peaks
d Analytical Ch
nual Report 2
led to drift
tive and AP
n, Sven Me
ased on eleed on mob
x samples.
ost commocal functionscans still re
f CZE with er improve snic acid (Aed which coAPTS-labelected high
pectra conspotential of
stian Neusüß
s separated b
hemistry
018
tube ion m
PTS-labele
eckelmann
ectrophoretilities in the
on post tras and humapresents a
drift tube ioseparation
APTS)-labelould not be ed glycansamount of
sidering theif CZE-DTIM
and Dr. Kevin
by CZE.
mobility-ma
d N-glycan
ic mobility e gas-phase
anslational an diseaseschallenging
on mobility capabilitiesed N-glycaresolved b
. Each indivf peaks ob
dimenvationbe exsenceformsrent gas p
In adsialic glycacant tained
Furthcationnidas
ir sialic acidM-MS, which
Jooß (Aalen
ass spectro
ns
in the liquie are both
modificatios. Due to thg task, esp
mass specs for the anans. In thisby these tecvidual glyca
bserved in nsion. Thisn could poxplained by e of s, includin
linkages, phase confo
ddition, the acid atta
ans has aimpact on d drift time
hermore, thn of α2-3 Nse enabled d linkages (αh is expecte
University, Ge
ometry
d phase powerful
on being heir high ecially if
ctrometry alysis of
s way, a chniques an signal the IMS s obser-otentially the pre-isomeric g diffe-
and/or ormers.
type of ched to signifi-the ob-
profile.
he appli-Neurami-
the par-α2-3/α2-
ed to find
ermany)
Page 29 of
Doctora
Simeon
Develop
photo io
This the
enlarge
towards
with AP
achieve
DIP-ES
sample
and tim
to this
this me
need of
By appl
the new
APPI sh
of the E
mobility
compou
Becaus
was po
recycled
method
For the
DIP-AP
determi
detecta
contains
number
therefor
f 40
al Theses a
Horst
pment and
onization
esis demons
s the app
s nonpolar c
PCI or ESI
e a compara
I leading to
volume of
e intensive
and abdica
thod reduc
f chemicals.
ication onto
w ion sourc
hows an inc
EPA 8720 m
y spectrome
unds within
e of the red
ossible to q
d papers. I
s that use e
determinat
PI to be a
ne alteratio
ble higher
s 41 comp
r of compo
re reduced t
accomplish
use of an
strates, tha
plications o
compounds
. By optim
able sensiti
o good sign
f 1 µL. In c
sample pre
ation of ch
es the ope
.
o different re
ce is demon
creased se
mix compare
etry, it was p
a total anal
duced ion s
quantify dif
n this case
extensive cl
tion of alter
fast alterna
ons up to 1
than 25%.
pounds for
unds, the A
the thresho
Applied
An
hed 2018
n ambient i
t the use of
of the dire
s which are
ization, it w
ivity as with
nal intensit
consequenc
eparation w
hromatograp
rating costs
eal samples
nstrated. Th
nsitivity for
ed to DIP-A
possible to
ysis time of
suppression
fferent bisp
e the DIP-A
ean-up and
ration of oliv
ative to cla
15% in con
This is ac
APPI and
APPI sum
old value of
d Analytical Ch
nual Report 2
ionization m
f photoioniz
ect inlet p
poorly ioniz
was possib
h DIP-APC
ties even w
ce, no che
was needed.
phic separa
s as well a
s the potent
hereby the
the compo
APCI. Due t
achieve a s
f 5 min.
n of the DIP
phenols ne
APPI offers
d separation
ve oils by o
assical anal
ntrast to the
chieved by
only 20 co
parameter
the system
hemistry
018
method bas
zation
probe
zable
ble to
I and
with a
mical
. Due
ation,
s the
tial of
DIP-
ounds
to ion
separation
P-APPI in c
early withou
an alterna
n steps.
other eatabl
ytical meth
e DIP-APC
the calcula
ompounds
showed be
.
sed on atm
and detecti
omparison
ut sample
tive to the
e oils the re
ods. The D
I where the
ation of a s
for APCI.
etter standa
mospheric p
ion even of
to the DIP-
preparation
classical a
results point
DIP-APPI is
e alteration
sum parame
Due to the
ard deviatio
pressure
isobaric
-APCI, it
n out of
analytical
t out the
s able to
n is only
eter that
e higher
ons and
Applied Analytical Chemistry
Annual Report 2018
Page 30 of 40
Master Theses accomplished 2018
Hayley Sherlee Simpson
Analysis of Cannabis sativa with a four dimensional separation method based on Continuous
Multi-Heart Cutting Gas Chromatography, Ion Mobility and High Resolution Mass Spectrome-
try
Martin Meyer
Development of a SPE protocol for enrichment of phenolic/aromatic compounds
Bachelor Theses accomplished 2018
Tharsiha Kandasamy
Comparison of different Collision Cross Section determination methods using DTIM-qTOF-
MS
Tatiana Kiltau
Optimization of SPE protocols for the enrichment of phenolic / aromatic compounds
Janina Nagel
Characterization of the ingredients of various liquors
Ina Obrock
Origin of Life: High Pressure Simulation and Analysis of Vesicular Peptide Systems
Annika Schubert
Establishment of a CCS database for lipids
Kevin Schulz
Further development of an LC-IM-qTOF-MS/MS method for the determination of lipids in
biological samples and foods
Applied Analytical Chemistry
Annual Report 2018
Page 31 of 40
Accepted and/or Published Scientific Publications 2018
Original Paper / Peer-reviewed
S. Brüggen, O. J. Schmitz A new concept for regulatory water monitoring via high-
performance liquid chromatography coupled to high-resolution mass spectrometry,
accepted in Journal of Analysis and Testing
C. Koch, M. Nachev, J. Klein, D. Koester, O. J. Schmitz, T. Schmidt, B. Sures Degradation
of the polymeric brominated flame retardant "Polymeric FR" by heat and UV, accepted
in Environmental Science & Technology
K. Jooß, S. W. Meckelmann, J. Klein, O. J. Schmitz, C. Neusüß Capillary zone
electrophoresis coupled to drift tube ion mobility-mass spectrometry for the analysis
of native and APTS-labeled N-glycans, accepted in Analytical and Bioanalytical Chemistry
as Paper in Forefront
L. C. Weiss, B. Albada, S. M. Becker, S. W. Meckelmann, J. Klein, M. Meyer, O. J. Schmitz,
U. Sommer, M. Leo, J. Zagermann, N. Metzler-Nolte, R. Tollrian The scent of predation:
Identification of an aquatic infochemical – the Chaoborus kairomone, Nature Chemical
Biology (2018) 14:1133-1139
C. Hellmann, O. J. Schmitz How to deal with mercury in sediments ? A critical review
about used methods for the speciation of mercury in sediments, Chromatographia
(https://doi.org/10.1007/s10337-018-3625-y)
V. Hinnekamp, J. Klein, S. Meckelmann, P. Balsaa, T. Schmidt, O. J. Schmitz Comparison
of CCS Values Determined by Traveling Wave Ion Mobility Mass Spectrometry and
Drift Tube Ion Mobility Mass Spectrometry, Analytical Chemistry (2018) 90:12042-12050
C. Mayer, U. Schreiber, M. J. Dávila, O. J. Schmitz, A. Bronja, M. Meyer, J. Klein, S. W.
Meckelmann Molecular Evolution in a Peptide-Vesicle System, Life (2018) 8: 16 open
access (https://doi.org/10.3390/life8020016)
C. Lipok, J. Hippler, O. J. Schmitz A four dimensional separation method based on conti-
nuous heart-cutting gas chromatography with ion mobility and high resolution mass
spectrometry, Journal of Chromatography A (2018) 1536:50-57
M. Aldrovandi, S. Banthiya, S. Meckelmann, Y. Zhou, D. Heydeck, V.B. O'Donnell, H. Kuhn
Specific oxygenation of plasma membrane phospholipids by Pseudomonas
aeruginosa lipoxygenase induces structural and functional alterations in mammalian
cells, Biochim Biophys Acta Mol Cell Biol Lipids 1863 (2018) 152-164
E. Fahy, J. Alvarez-Jarreta, C.J. Brasher, A. Nguyen, J.I. Hawksworth, P. Rodrigues, S.
Meckelmann, S.M. Allen, V.B. O'Donnell LipidFinder on LIPID MAPS: peak filtering, MS
Applied Analytical Chemistry
Annual Report 2018
Page 32 of 40
searching and statistical analysis for lipidomics, Bioinformatics (2018) 10.1093/
bioinformatics/bty679
Poster Presentations
T. Koehler, J. Klein, O. J. Schmitz, S. W. Meckelmann, Characterization of the human
plasma lipidome using LC-IM-qTOF-MS, Regionalverbandstagung NRW der Lebensmit-
telchemischen Gesellschaft (Essen, Germany) March 2018
L. Montero, K. Rentmeister, S. W. Meckelmann, O. J. Schmitz, S. Buckenmaier, A novel 4D-
analytical platform for Omics Sciences, Agilent Science Fair Posters, March 2018
T. Koehler, O. J. Schmitz, S. W. Meckelmann, Characterization of the human plasma lip-
idome using LC-IM-qTOF-MS, analytica Munich conference (Munich, Germany) April 2018
C. Lipok, J. Klein, F. Uteschil, S. W. Meckelmann, O. J. Schmitz, Determination of complex
natural samples: Marijuana & Cannabinoids with GC+GC-APCI-IM-MS, analytica Munich
conference (Munich, Germany) April 2018
D. Brecht, F. Uteschil, O. J. Schmitz, Investigation of drugs using a novel thermogravim-
etry atmospheric pressure photo ionization mass spectrometry coupling (TG-APPI-
MS), analytica Munich conference (Munich, Germany) April 2018
K. Rentmeister, T. Kriegsmann, J. Klein, S. W. Meckelmann, A. H. Duong, V. H. Pham, O. J.
Schmitz, Analysis of Vietnamese herbs and formulations by means of LC-IM-qTOF-MS,
analytica Munich conference (Munich, Germany) April 2018
C. Lipok, O. J. Schmitz, A generic method for the analysis of complex natural substanc-
es: Marijuana and Cannabinoids with GC+GC-APCI-IMS, 42nd International Symposium
on Capillary Chromatography (Riva, Italy) May 2018 Analytical Method Poster Prize
J. Klein, S. W. Meckelmann, V. Hinnenkamp, T. C Schmidt, O. J. Schmitz, Collision cross
section: Influences and comparability, ASMS 2018 (San Diego, USA) June 2018
S. Stow, R. Kurulugama, G. Stafford, J. Fjeldsted, J. Klein, O. J. Schmitz, T. Causon, S.
Hann, Achieving Highly Accurate CCS Measurements in LC-IM-MS Analyses, ASMS
2018 (San Diego, USA) June 2018
K. Rentmeister, L. Montero, S. W. Meckelmann, S. Buckenmaier, O. J.Schmitz, A novel 4D-
analytical platform for Omics Sciences, 47th HPLC 2018 (Washington, USA) August 2018
J. Li, O. J. Schmitz, Ozone Stress Effect on the Intracellular Metabolites from Cobetia
Marina by Two-dimensional Gas Chromatography with Mass Spectrometer, 9th
analytica Conference (Shanghai, China) October 2018 The Best Poster of the Symposium
Applied Analytical Chemistry
Annual Report 2018
Page 33 of 40
K. Rentmeister, T. Köhler, O. J. Schmitz, S. W. Meckelmann, Characterization of the hu-
man plasma lipidome using LC-IM-qTOF-MS, Lipidomic-Forum (Dortmund, Germany) No-
vember 2018
Invited Lectures / Oral Presentations
Prof. Oliver J. Schmitz
µLC+LC-IM-qTOF-MS for complex samples such as lipidome or proteome
Analytica China conference, Shanghai, China, October 2018
Five-dimensional analysis (LC+LC-IM-qTOF-MS) for complex samples such as
metablome, lipidome or proteome
International Symposium on Metabolic diseases and translational medicine, Dalian, China,
October 2018
LC+LC- and GC+GC-IMS-qTOF-MS as a generic analytical platform and first results
with a new GC-APCI ion source
Tsinghua University, Beijing, China, October 2018
Thousands of separated signals in a four-dimensional separation approach:
How can we manage the data
SECyTA 2018, 18th meeting of the Spanish Society of Chromatography and Related
Techniques, Granada, Spain, October 2018
From one- to five-dimensional analysis platform: pros and cons
2nd 2D-LC / GC Symposium: User meeting for multidimensional chromatography
Frankfurt, Germany, September 2018
Multidimensional Chromatography coupled with Ion-Mobility Mass Spectrometry:
Enough is enough
Analytica conference, Munich, Germany, April 2018
LC+LC- and GC+GC-IMS-qTOF-MS in combination with a CCS data base as a generic
analytical platform
University of Graz, Graz, Austria, March 2018
Einsatz der Ionenmobilitäts-Massenspektrometrie für suspected und non-target
Fragestellungen: Ein kritischer Überblick
IUTA, Duisburg, Germany, March 2018
LC+LC- and GC+GC-IMS-qTOF-MS as a generic analytical platform
Dow-Chemicals, Stade, Germany, January 2018
Applied Analytical Chemistry
Annual Report 2018
Page 34 of 40
Multidimensional Chromatography coupled with Ion Mobility - Mass Spectrometry:
Hype or Ripe?
4th International Ion Mobility Spectrometry (IMS) Meeting, Uetrecht, The Netherlands,
January 2018
Dr. Sven Meckelmann
LC-MS based Lipidomics: From QqQ to IM-qTOF
Analytik Seminar at the University Muenster, Muenster, Germany, July 2018
Characterization of the Human Plasma Lipidome using LC-IM-qTOF-MS
47th International Symposium on High Performance Liquid Phase Separations and Related
Techniques, Washington DC, USA, August 2018
Julia Klein
Collision Cross Section: Comparability of DTIMS and TWIMS and influences of source
parameters
ASMS 2018, San Diego (USA), June 2018
Page 35 of
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Annual Report 2018
Page 38 of 40
Teaching
Chemistry (B.Sc. / M.Sc.)
Lecture Analytical Chemistry I (in German, Prof. Dr. O. J. Schmitz)
Tutorial Analytical Chemistry I (in German, Dr. S. Meckelmann)
Lecture Anaytical Chemistry II (in German, Prof. Dr. O. J. Schmitz)
Tutorial Analytical Chemistry II (in German, Dr. S. Meckelmann)
Water Science (B.Sc. / M.Sc)
Lecture Analytical Chemistry I (in German, Prof. Dr. O. J. Schmitz)
Tutorial Analytical Chemistry I (in German, Dr. S. Meckelmann)
Lecture Anaytical Chemistry II (in German, Prof. Dr. O. J. Schmitz)
Tutorial Analytical Chemistry II (in German, Dr. S. Meckelmann)
Lecture Applied Analytical Chemistry (in English, Prof. Dr. O. J. Schmitz)
Tutorial Applied Analytical Chemistry (in English, Prof. Dr. O. J. Schmitz)
Lecture Environmental Chemistry: Pollutants (in English, Prof. Dr. O. J. Schmitz)
Tutorial Environmental Chemistry: Pollutants (in English, Prof. Dr. O. J. Schmitz)
Exercise Environmental Chemistry: Soil and Waste (in English, Dr. M. Sulkowski)
Environmental Toxicology (M.Sc.)
Lecture Applied Analytical Chemistry (in English, Prof. Dr. O. J. Schmitz)
Tutorial Applied Analytical Chemistry (in English, Prof. Dr. O. J. Schmitz)
Lecture Environmental Chemistry: Pollutants (in English, Prof. Dr. O. J. Schmitz)
Tutorial Environmental Chemistry: Pollutants (in English, Prof. Dr. O. J. Schmitz)
Magisterium
Lecture Environmental Chemistry: Soil (in German, Dr. M. Sulkowski)
Applied Analytical Chemistry
Annual Report 2018
Page 39 of 40
Seminar
Analytical-chemical seminar
(in German/English, Prof. Dr. O. J. Schmitz in cooperation with Prof. Dr. T. Schmidt)
Practical courses
Practical course analytical chemistry
Research practical courses
Teaching and Research Center for Separation
Course 1: Basic Course Liquid Chromatography (in German, Prof. Dr. O. J. Schmitz)
Course 2: Advanced Course Liquid Chromatography (in German, Prof. Dr. O. J. Schmitz)
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