View
221
Download
0
Tags:
Embed Size (px)
Citation preview
Light Source
Sample
Monochromator(filter,
wavelength selector)
Detector
Spectrometer
Data Processing
Solvents for UV/vis Spectrophotometry
Solvent Lower Wavelength Limit
Water 180 nm
Ethanol 220 nm
Hexane and 200 nmCyclohexane
Acetone 320 nm
Wavelength, nm
Aor
C
Other components of the mixture
Measure @this wavelength!
B + reagent CCompound is chemically derivitized (transformed) prior to themeasurement of absorbance