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J Chromatogr A. 2010 Jun 18;1217(25):4071-8. doi: 10.1016/j.chroma.2009.08.061. Epub 2009 Aug 27.

Characterization and classification of matrix effects in biological samples analyses.

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  • 1School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Boulevard d'Yvoy 20, 1211 Geneva 4, Switzerland.

Abstract

An exhaustive classification of matrix effects occurring when a sample preparation is performed prior to liquid-chromatography coupled to mass spectrometry (LC-MS) analyses was proposed. A total of eight different situations were identified allowing the recognition of the matrix effect typology via the calculation of four recovery values. A set of 198 compounds was used to evaluate matrix effects after solid phase extraction (SPE) from plasma or urine samples prior to LC-ESI-MS analysis. Matrix effect identification was achieved for all compounds and classified through an organization chart. Only 17% of the tested compounds did not present significant matrix effects.

PMID:
19744661
DOI:
10.1016/j.chroma.2009.08.061
[PubMed - indexed for MEDLINE]
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