Journal
RAPID COMMUNICATIONS IN MASS SPECTROMETRY
Volume 18, Issue 12, Pages 1361-1364Publisher
WILEY
DOI: 10.1002/rcm.1477
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Ion suppression is a well-known phenomenon in electrospray ionization (ESI) mass spectrometry. These suppression effects have been shown to adversely affect the accuracy and precision of quantitative bioanalytical methods using ion spray. Such suppression effects have not been as well defined in atmospheric pressure chemical ionization (APCI) and there is some debate whether these effects actually occur in the ionization process using APCI. Here an example is described where clear ion suppression was observed during studies on a model compound and three metabolites using APCI liquid chromatography/tandem mass spectrometry (LC/MS/MS). Copyright (C) 2004 John Wiley Sons, Ltd.
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