Switching from an analogous to a stable isotopically labeled internal standard for the LC-MS/MS quantitation of the novel anticancer drug Kahalalide F significantly improves assay performance.

E. Stokvis, H. Rosing, L. Lopez-Lazaro, J.H.M. Schellens, J.H. Beijnen

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

The importance of a stable isotopically labeled (SIL) internal standard for the quantitative LC-MS/MS assay for Kahalalide F in human plasma is highlighted. Similar results can be expected for other LC-MS/MS assays. Therefore, we emphasize the need for an SIL internal standard for accurate and precise LC-MS/MS assays of drugs in biological matrices.
Original languageUndefined/Unknown
Pages (from-to)400-2
Number of pages3
JournalBiomedical Chromatography
Volume18
Issue number6
Publication statusPublished - 2004

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