Waters ACQUITY UPLC Operator's, Overview And Maintenance Manual page 115

UV cutoffs for common solvents
The table below shows the UV cutoff (the wavelength at which the absorbance
of the solvent is equal to 1 AU) for some common chromatographic solvents.
Operating at a wavelength near or below the cutoff increases baseline noise
because of the absorbance of the solvent.
UV cutoff wavelengths for common chromatographic solvents
Solvent
1-Nitropropane
2-Butoxyethanol
Acetone
Acetonitrile
Amyl alcohol
Amyl chloride
Benzene
Carbon disulfide
Carbon tetrachloride 265
Chloroform
Cyclohexane
Cyclopentane
Diethyl amine
Dioxane
Ethanol
Ethyl acetate
Ethyl ether
Ethyl sulfide
Ethylene dichloride
UV cutoff
Solvent
(nm)
380 Ethylene glycol
220 Iso-octane
330 Isopropanol
190 Isopropyl chloride
210 Isopropyl ether
225 Methanol
280 Methyl acetate
380 Methyl ethyl ketone
Methyl isobutyl
ketone
245 Methylene chloride
200 n-Pentane
200 n-Propanol
275 n-Propyl chloride
215 Nitromethane
210 Petroleum ether
256 Pyridine
220 Tetrahydrofuran
290 Toluene
230 Xylene
UV cutoff
(nm)
210
215
205
225
220
205
260
330
334
233
190
210
225
380
210
330
230
285
290
Solvent considerations 103