Journal of Analytical Toxicology
September 1, 1999
Scott Reuschel, Shaundel Percey, S. Liu et al.
38 citations
An assay has been developed for quantitative determination of lysergic acid diethylamide (LSD) and a major metabolite of LSD in human urine at concentrations as low as 10 pg/mL. In most LSD-positive urine samples the metabolite, 2-oxo-3-hydroxy-LSD, is present at higher concentrations than LSD and can be detected for a longer time than LSD after ingestion of the drug. Urine samples are...
Journal of Analytical Toxicology
September 1, 1996
Yoshiro Nakahara, Ruri Kikura, Kazunori Takahashi et al.
36 citations
To examine the feasibility of detecting lysergic acid diethylamide (LSD) and its metabolites in hair, LSD was administered to rats with pigmented hair at 0.05, 0.1, 0.5, 1, and 2 mg/kg intraperitoneally once per day for 10 successive days. The rats were shaved just before the first administration, and newly grown hair was collected 4 weeks later. After being washed with 0.1% sodium dodecyl...
Journal of Chromatography B Biomedical Sciences and Applications
September 1, 1992
Chad C. Nelson, Rodger L. Foltz
46 citations
Continued illicit use of the potent psychedelic drug lysergic acid diethylamide (LSD) has stimulated efforts to develop effective analytical methods for detection of the drug and its metabolites in body fluids from suspected LSD users. Recently reported methods based on gas and liquid chromatography, combined with single- and multiple-stage mass spectral analysis, now permit accurate detection...
Analytical Chemistry
July 15, 1992
Chad C. Nelson, Rodger L. Foltz
64 citations
Procedures for detection and quantitation of lysergic acid diethylamide (LSD), iso-LSD, and N-demethyl-LSD by capillary chromatography/tandem mass spectrometry (GC/MS/MS) are presented. Several methods for derivatization, sample introduction, and ionization, in combination with mass spectrometry/mass spectrometry (MS/MS), have been evaluated for overall ionization efficiency and product-ion...
Journal of Analytical Toxicology
May 1, 1990
Damon I. Papac, Rodger L. Foltz
45 citations
A previously reported procedure for quantification of LSD in urine was modified to permit measurement of the drug in plasma. After addition of deuterium-labelled LSD, the plasma is extracted and the extract is treated with trifluoroacetylimidazole to convert the LSD to its N-trifluoroacetyl derivative. The derivatized LSD is analyzed by capillary column gas chromatography/negative ion chemical...
Chemical Research in Toxicology
November 1, 1988
H. K. Lim, Rodger L. Foltz
117 citations
Four biotransformation pathways of 3,4-(methylenedioxy)methamphetamine (MDMA) in the rat have been identified: N-demethylation, O-dealkylation, deamination, and conjugation (O-methylation, O-glucuronidation, and/or O-sulfation). The specific MDMA metabolites that have been identified are 3-hydroxy-4-methoxymethamphetamine, 4-hydroxy-3-methoxymethamphetamine, 3,4-dihydroxymethamphetamine,...
Analytical Chemistry
July 15, 1988
Hyun Kyoon Lim, David M. Andrenyak, Paula Francom et al.
68 citations
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTQuantification of LSD and N-demethyl-LSD in urine by gas chromatography/resonance electron capture ionization mass spectrometryHeng Keang. Lim, David. Andrenyak, Paula. Francom, Rodger L. Foltz, and Reese T. JonesCite this: Anal. Chem. 1988, 60, 14, 1420–1425Publication Date (Print):July 15, 1988Publication History Published online1 May 2002Published...
Journal of Analytical Toxicology
1988
Paula Francom, David M. Andrenyak, Hyun Kyoon Lim et al.
55 citations
A procedure for the determination of LSD (lysergic acid diethylamide) in urine at concentrations as low as 0.5 ng/ml is presented. After addition of deuterium-labeled LSD as the internal standard, a rapid n-butyl chloride extraction of LSD from urine at pH 8 is followed by formation of the trimethylsilyl (TMS) derivative by treatment with N,O-bis(trimethylsilyl)trifluoroacetamide. The TMS...