title: Liquid chromatographic/electrospray ionization tandem mass spectrometric analysis for the quantification of buprenorphine, norbuprenorphine, buprenorphine-3-beta-D-glucuronide and norbuprenorphine-3-beta-D-glucuronide in human plasma.
abstract: A liquid chromatographic/electrospray ionization tandem mass spectrometric method for the quantification of the synthetic opiate buprenorphine (BUP), norbuprenorphine (NBUP), buprenorphine-3-beta-D-glucuronide (BUP-3-G) and norbuprenorphine-3-beta-D-glucuronide (NBUP-3-G) in human plasma was developed and validated. Identification and quantification were based on the following transitions: m/z 468 to 396 and 414 for BUP, m/z 414 to 326 and 340 for NBUP, m/z 644 to 468 for BUP-3-G and m/z 590 to 414 for NBUP-3-G. Calibration by linear regression analysis utilized deuteratated internal standards and a weighting factor of 1/x. The method was accurate and precise across a linear dynamic range of 0.6-50.0 ng ml(-1). Pretreatment of plasma samples using solid-phase extraction was sufficient to limit matrix suppression to <30% for all four analytes. The method proved to be suitable for the quantification of BUP and the related metabolites in plasma samples collected from BUP-maintained study participants.
authors.affiliation: Chemistry and Drug Metabolism, Intramural Research Program, National Institute on Drug Abuse, National Institutes of Health, 5500 Nathan Shock Drive, Baltimore, Maryland 21224, USA.
authors.forename: Constance M
authors.initials: CM
authors.lastname: Murphy
authors.forename: Marilyn A
authors.initials: MA
authors.lastname: Huestis
mesh_terms: D002047:Buprenorphine / Q000031:analogs & derivatives* / Q000097:blood* / Q000493:pharmacokinetics; D002851:Chromatography, High Pressure Liquid; D005260:Female; D006801:Humans; D009292:Narcotic Antagonists / Q000097:blood* / Q000493:pharmacokinetics; D011247:Pregnancy; D015203:Reproducibility of Results; D021241:Spectrometry, Mass, Electrospray Ionization / Q000379:methods*
chemical_list: D009292:Narcotic Antagonists; C499393:norbuprenorphine-3-beta-D-glucuronide; C050182:buprenorphine-3-O-glucuronide; D002047:Buprenorphine; C043585:norbuprenorphine