Je. Madden et al., DIFFERENTIATION OF SIDE-CHAIN ISOMERS OF METHAMPHETAMINE USING GAS-CHROMATOGRAPHY, HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHY AND MASS-SPECTROMETRY, Forensic science international, 61(2-3), 1993, pp. 169-174
Eleven side chain positional isomers of methamphetamine can be disting
uished from methamphetamine using a combination of the Marquis colour
test, ps chromatography (GC), high performance liquid chromatography (
HPLC) and mass spectrometry (MS). Many of the compounds gave identical
colour tests, and several had similar mass spectral fragmentation pat
terns, but the combined technique of GC/MS unequivocally differentiate
s all the isomers.