Window factor analysis: Theoretical derivation and application to flow injection analysis data

作者：Edmund R. Malinowski · 发表于：Journal of Chemometrics · 年份：1992 · DOI：10.1002/cem.1180060104 · 被引用次数：280 · 研究领域：Analytical Chemistry and Chromatography、Crystallization and Solubility Studies、Chemical and Physical Properties in Aqueous Solutions

Abstract Window factor analysis (WFA) is a self‐modeling method for extracting the concentration profiles of individual components from evolutionary processes such as flow injection, chromatography, titrations and reaction kinetics. The method takes advantage of the fact that each component lies in a specific region along the evolutionary axis, called the window. Theoretical equations are derived. The method is used to extract the concentration profiles and spectra of seven bismuth species from data obtained by Gemperline and Hamilton, who injected bismuth perchlorate into a flowing stream of hydrochloric acid.