GLC-mass Spectral Determination of Mescaline in Plasma of Rabbits after Intravenous Injection
Journal of Pharmaceutical Sciences January 1, 1980 C. Van Peteghem, A. Heyndrickx, W. Van Zele 11 citations
A gas-liquid chromatography–mass spectrometry method using a deuterated internal standard accurately measures mescaline concentrations in rabbit plasma. After intravenous administration, mescaline and the internal standard are extracted with benzene, derivatized with trifluoroacetic acid anhydride, and separated on a 2.5% QF-1 column with mass fragmentographic detection. The detection limit is 5 ng/ml of plasma, and the relative standard deviation is about 5%. The method's main advantage is combining the specificity of gas-liquid chromatography retention time and mass spectral fragmentation with the sensitivity of mass fragmentographic detection.