The designer stimulant 4-methylmethcathinone (mephedrone) is among the most popular of the derivatives of the naturally occurring psychostimulant cathinone. Mephedrone has been readily available for legal purchase both online and in some stores and has been promoted by aggressive Web-based marketing. Its abuse in many countries, including the United States, is a serious public health concern....
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...
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...