Application of multivariate curve resolution alternating least squares (MCR-ALS) to the quantitative analysis of pharmaceutical and agricultural samples

被引:224
作者
Azzouz, T. [1 ]
Tauler, R. [1 ]
机构
[1] CSIC, IIQAB, Dept Environm Chem, ES-08034 Barcelona, Spain
关键词
forage analysis; NIR spectroscopy; MCR-ALS; PLSR;
D O I
10.1016/j.talanta.2007.08.024
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Application of multivariate curve resolution alternating least squares (MCR-ALS), for the resolution and quantification of different analytes in different type of pharmaceutical and agricultural samples is shown. In particular, MCR-ALS is applied first to the UV spectrophotometric quantitative analysis of mixtures of commercial steroid drugs, and second to the near-infrared (NIR) spectrophotometric quantitative analysis of humidity and protein contents in forage cereal samples. Quantitative results obtained by MCR-ALS are compared to those obtained using the well established partial least squares regression (PLSR) multivariate calibration method. (c) 2007 Published by Elsevier B.V.
引用
收藏
页码:1201 / 1210
页数:10
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