期刊
JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES
卷 829, 期 1-2, 页码 75-81出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jchromb.2005.09.034
关键词
venlafaxine; O-desmethyl venlafaxine; LC-MS-MS; human plasma
A rapid and sensitive liquid chromatography-tandem mass spectrometry (LC-MS-MS) method has been developed and validated for simultaneous quantification of venlafaxine (VEN) and O-desmethyl venlafaxine (ODV) in human plasma. The analytes were extracted from human plasma by using solid-phase extraction (SPE) technique. Escitalopram (ESC) was used as the internal standard. A Betasil C18 column provided chromatographic separation of analytes followed by detection with mass spectrometry. The mass transition ion-pair has been followed as m/z 278.27 -> 121.11 for VEN, m/z 264.28 -> 107.10 for ODV and inlz 325.00 -> 262.00 for ESC. The method involves a solid phase extraction from plasma, simple isocratic chromatography conditions and mass spectrometric detection that enables detection at nanogram levels. The proposed method has been validated with linear range of 3-300 ng/ml for VEN and 6-600 ng/ml for ODV. The intrarun and interrun precision and accuracy values are within 10%. The overall recoveries for VEN and ODV were 95.9 and 81.7%, respectively. Total elution time as low as 3 min only. (c) 2005 Elsevier B.V. All rights reserved.
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