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A.p. de Leenheer

3 papers in the library · 184 citations · publishing 2000-2002

Papers

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Distribution Study of 3,4-Methylenedioxymethamphetamine and 3,4-Methylenedioxyamphetamine in a Fatal Overdose

Journal of Analytical Toxicology March 1, 2002 Els A. de Letter, Karine M. Clauwaert, Willy E. Lambert et al. 47 citations

In this study, regional tissue distributions of the amphetamine analogue 3,4-methylenedioxymethamphetamine (MDMA, "ecstasy") and its metabolite 3,4-methylenedioxyamphetamine (MDA) in a fatal overdose are presented. Quantitation of MDMA and MDA levels occurred in blood samples taken centrally (right and left heart and main adjacent great vessels) and peripherally (subclavian and femoral blood)....

Stability study of the designer drugs “MDA, MDMA and MDEA” in water, serum, whole blood, and urine under various storage temperatures

Forensic Science International December 1, 2001 Karine M. Clauwaert, Jan F. van Bocxlaer, A.p. de Leenheer 69 citations

A controlled study was undertaken to determine the stability of the designer drugs MDA, MDMA and MDEA in pooled serum, whole blood, water and urine samples over a period of 21 weeks. The concentrations of the individual designer drugs in the various matrices were monitored over time, in the dark at various temperatures (-20, 4 or 20 degrees C), for a low (+/- 6 ng/ml for water, serum and whole...

Determination of the Designer Drugs 3,4-Methylenedioxymethamphetamine, 3,4-Methylenedioxyethylamphetamine, and 3,4-Methylenedioxyamphetamine with HPLC and Fluorescence Detection in Whole Blood, Serum, Vitreous Humor, and Urine

Clinical Chemistry December 1, 2000 Karine M. Clauwaert, Jan F. van Bocxlaer, Els A. de Letter et al. 68 citations

Abstract Background: The popular designer drugs 3,4-methylenedioxymethamphetamine (MDMA) and 3,4-methylenedioxyethylamphetamine (MDEA) can be determined in serum, whole blood, and urine, but also in vitreous humor. The latter matrix is interesting when dealing with decomposed bodies in a toxicological setting. Methods: After extraction, chromatographic separation was achieved on a narrow-bore...