Extracting metabolite ions out of a matrix background by combined mass defect, neutral loss and isotope filtration

被引：42

作者：

Cuyckens, Filip ^{[1
]}

Hurkmans, Rob ^{[1
]}

Castro-Perez, Jose M. ^{[2
]}

Leclercq, Laurent ^{[1
]}

Mortishire-Smith, Russell J. ^{[3
]}

机构：

[1] Johnson & Johnson Pharmaceut R&D, Global Preclin Dev, B-2340 Beerse, Belgium

[2] Waters Corp, MS Technol Ctr, Manchester M22 5PP, Lancs, England

[3] Johnson & Johnson Pharmaceut R&D, ADME TOX, B-2340 Beerse, Belgium

来源：

RAPID COMMUNICATIONS IN MASS SPECTROMETRY | 2009年 / 23卷 / 02期

关键词：

BIOLOGICAL MATRICES; SPECTROMETRY; DRUG;

D O I：

10.1002/rcm.3881

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Mass defect, neutral loss and isotope filtration techniques were applied to electrospray ionization mass spectrometry (EST-MS) data obtained for in vivo and in vitro samples of drug metabolism studies. A combination of these post-acquisition processing techniques was shown to be more powerful than the use of one of these tools alone for the detection in complex matrices of metabolites of candidate drugs with a characteristic isotope pattern (e.g. containing bromine, chlorine, or a high proportion of radiolabeled drug (C-12/C-14)) or characteristic neutral losses. In combination with 'all-in-one' data acquisition this methodology is able to perform software-driven constant neutral loss scanning for an unlimited number of mass differences at any time after analysis. Highly selective MS chromatograms were obtained with excellent correlation with their corresponding radiochromatograms. Copyright (C) 2009 John Wiley & Sons, Ltd.

引用

页码：327 / 332

页数：6

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