Determination of methadone, 2-ethylidene-1,5-dimethyl-3,3-diphenylpyrrolidine, 2-ethyl-5-methyl-3,3-diphenylpyraline and methadol in meconium by liquid chromatography atmospheric pressure chemical ionization tandem mass spectrometry
This paper details a validated liquid chromatography atmospheric pressure chemical ionization tandem mass spectrometry (LC-APCI-MS/MS) method for the quantification of methadone, and its metabolites 2-ethylidene-1,5-dimethyl-3,3-diphenylpyrrolidine (EDDP), 2-ethyl-5-methyl-3,3-diphenylpyraline (EMDP) and methadol in human meconium. Limits of detection (LOD) were determined to be 1.0 ng/g for methadone, EDDP and EMDP and 2.5 ng/g for methadol. The limits of quantitation (LOQ) for methadone, EDDP, EMDP were 5 and 25 ng/g for methadol. Linearity ranged from 5.0 to 500 ng/g. Following solid-phase extraction, no matrix effect was observed. This method proved to be suitable for the quantification of methadone, EDDP and EMDP and the semi-quantitation of methadol in meconium. Literature review revealed no other published LC-APCI-MS/MS method for the detection of methadone and its three main metabolites in meconium specimens. Published by Elsevier B.V.
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作 者 |
Choo, RE
(NIDA, Chem &)
;
Murphy, CM
(Drug Metab Sect, Intramural Res Program, NIH, Baltimore, MD 21224 USA)
;
Jones, HE
Huestis, MA
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刊 名 |
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences
2005
年814卷2期
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关键词 |
methadone
meconium
LC-APCI-MS/MS
STEREOSELECTIVE DETERMINATION
QUANTITATIVE-DETERMINATION
ENANTIOSELECTIVE ANALYSIS
PRIMARY METABOLITE
HUMAN PLASMA
COCAINE
URINE
IMMUNOASSAY
ENANTIOMERS
SALIVA
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| MeSH主题词 |
Hydrogen-Ion Concentration
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分类号 |
R362
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