Quantitative Analysis of Lysergic Acid Diethylamide and Metabolite in Urine by Automated Extraction and Liquid Chromatography-Tandem Mass Spectrometry.
Abstract
Recently, lysergic acid diethylamide (LSD) has become a resurgent drug of abuse. The detection of LSD is problematic because of the low dosage taken by users, light and heat sensitivity of the analyte and the lack of efficient analytical methods. Presented here is the validation of an automated sample preparation method for the analysis of LSD and its primary urinary metabolite, 2-oxo-3-hydroxy-LSD (OHLSD), in urine samples by liquid chromatography-tandem mass spectrometry. Analytes were extracted from urine using an automated Dispersive Pipette XTRaction method on Hamilton STAR and STARlet liquid handling systems. The limit of detection for both analytes was administratively defined at the lowest calibrator used in the experiments, and the limit of quantitation was 0.05 ng/mL for both analytes. All validation criteria were acceptable per Department of Defense Instruction 1010.16 requirements. This method offers an efficient, sensitive analytical solution to routinely evaluate large numbers of urine specimens for LSD in workplace drug deterrence programs.
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