Journal
JOURNAL OF CHROMATOGRAPHY A
Volume 1158, Issue 1-2, Pages 184-195Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.chroma.2007.05.045
Keywords
factor analysis; curve resolution; two-way data; three-way data
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Factor analysis (FA) is a family of widely used methods to obtain the underlying sources of variation of data tables. Typically, hyphenated chromatographic data provide data tables with one elution direction and another linked to the detector response. In this context, the factors are the eluting compounds and the profiles defining each factor are the elution profile and the pure response of the compound. This article describes the use of FA in chromatography through diverse tools and problems. Examples of determination of number of compounds, peak purity problems, resolution of overlapped compounds or extension to simultaneous analysis of multiple runs (higher-order data structures) to obtain qualitative and quantitative information are reviewed. (c) 2007 Elsevier B.V. All rights reserved.
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