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Liquid Chromatography-Electrospray Mass Spectrometry Determination of Imatinib and Its Main Metabolite, N-Desmethyl-Imatinib in Human Plasma
The aim of this paper was to develop a specific and sensitive liquid chromatography/electrospray ionization mass spectrometry method for the determination of imatinib and its metabolite in human plasma. The method involved a solid phase extraction of the compounds and internal standard (imatinib-D 8...
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Published in: | Journal of liquid chromatography & related technologies 2006-12, Vol.29 (20), p.2957-2974 |
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Main Authors: | , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | The aim of this paper was to develop a specific and sensitive liquid chromatography/electrospray ionization mass spectrometry method for the determination of imatinib and its metabolite in human plasma. The method involved a solid phase extraction of the compounds and internal standard (imatinib-D
8
) from human plasma. LC separation was performed on a SymmetryShield™ RP8 column with a mobile phase of water:acetonitrile:formic acid. MS data were acquired in single ion monitoring mode at m/z 494.4, m/z 480.4 and m/z 502.4 for imatinib, N-desmethyl-imatinib, and imatinib-D
8
, respectively. The absence of ion suppression was demonstrated. The drug/internal standard peak area ratios were linked via a quadratic relationship to plasma concentrations (8.35-8350 µg/L for imatinib and N-desmethyl-imatinib). Precision was 2.8-10.8% and accuracy was 91.3-111.3%. Extraction recoveries were ≥70%. The lower limit of quantitation was 8.35 µg/L for both imatinib and N-desmethyl-imatinib. |
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ISSN: | 1082-6076 1520-572X |
DOI: | 10.1080/10826070600981058 |