Skip to content

R L Foltz

3 papers in the library · 19 citations · publishing 1991-1995

Papers

Sort Most recent Most cited

Determination of ibogaine and 12-hydroxy-ibogamine in plasma by gas chromatography-positive ion chemical ionization-mass spectrometry.

Journal of Analytical Toxicology October 1, 1995 M E Alburges, R L Foltz, D E Moody 19 citations

Ibogaine, an indolamine derivative, is currently being investigated as a potential agent in the treatment of stimulant and opiate addiction. We developed a rapid, sensitive, and specific method for the analysis of ibogaine and its putative active metabolite, 12-hydroxy-ibogamine (12-OH-ibogamine). This assay employs a one-step basic extraction with n-butyl chloride-acetonitrile (4:1), followed...

Stereoselective disposition: enantioselective quantitation of 3,4-(methylenedioxy) methamphetamine and three of its metabolites by gas chromatography/electron capture negative ion chemical ionization mass spectrometry.

Biological mass spectrometry July 1993 H K Lim, Z Su, R L Foltz

A new chiral assay for 3,4-(methylenedioxy)methamphetamine (MDMA) and three of its metabolites in biological specimens is based on direct aqueous derivatization with N-heptafluorobutyryl-S-prolyl chloride, followed by capillary chromatographic separation of the diastereomeric derivatives and detection by a mass spectrometer operated in the electron capture negative ion chemical ionization mode....

In vivo formation of aromatic hydroxylated metabolites of 3,4-(methylenedioxy)methamphetamine in the rat: identification by ion trap tandem mass spectrometric (MS/MS and MS/MS/MS) techniques.

Biological mass spectrometry November 1991 H K Lim, R L Foltz

Aromatic hydroxylation has been established as a pathway for the in vivo metabolism of 3,4-(methylenedioxy)methamphetamine (MDMA) in the rat. Hydroxylation occurred at positions 2, 5 and 6 of the 3,4-methylenedioxyphenyl ring, but is favored at the 6 position. All three regioisomers of both hydroxy-MDMA and hydroxy-3,4-(methylenedioxy)amphetamine (hydroxy-MDA) were detected in the rat liver...