Extraction and simultaneous elution and derivatization of 11-nor-9-carboxy-delta 9-tetrahydrocannabinol using Toxi-Lab SPEC prior to GC/MS analysis of urine.

Abstract

A new sample preparation procedure is described for the extraction and simultaneous elution and derivation of urine for analysis of 11-nor-9-carboxy-delta 9-tetrahydrocannabinol (THC-COOH) by gas chromatography/ion trap mass spectrometry (GC/MS). Urine samples are extracted for THC-COOH and d6-THC-COOH internal standard onto a hydrophobic membrane. Extracts… (More)

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