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Urine profiling using capillary electrophoresis-mass spectrometry and multivariate data analysis.

Sara Ullsten·Rolf Danielsson·Daniel Bäckström·Per Sjöberg·Jonas Bergquist
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Abstract

This work presents the development of a general and fast method for metabolic profiling of urine, using capillary electrophoresis-electrospray ionisation mass spectrometry (CE-ESIMS) and multivariate data analysis (DA). Human urine samples collected before and after ingestion of paracetamol were analysed at acidic and basic CE conditions, using both positive and negative ESI-MS detection. Analysis of the entire resulting data set, with no prior knowledge of the target compounds, using pair-wise 'fuzzy' correlation and eigenvalue analysis enabled the samples to be discriminated between on the basis of blank urine and urine collected after drug intake. By generating two-dimensional loadings plots, it was also possible to identify the m/z values of the substances responsible for the differentiation between control and dosed samples.

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AcetaminophenElectrophoresis, CapillaryHumansMultivariate AnalysisSpectrometry, Mass, Electrospray IonizationUrinalysisJournal ArticleResearch Support, Non-U.S. Gov't

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Sara Ullsten, Rolf Danielsson, Daniel Bäckström, Per Sjöberg, Jonas Bergquist. 2006-04-18. Urine profiling using capillary electrophoresis-mass spectrometry and multivariate data analysis.. https://doi.org/10.1016/j.chroma.2006.03.048

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