Simultaneous spectrophotometric determination of four metals by the kernel partial least squares method

被引：21
|
作者：
Gao, L [1 ]
Ren, SX [1 ]
机构：
[1] Inner Mongolia Univ, Dept Chem, Huhehot 010021, Inner Mongolia, Peoples R China
来源：
CHEMOMETRICS AND INTELLIGENT LABORATORY SYSTEMS | 1999年 / 45卷 / 1-2期
关键词：
partial least squares; kernel partial least squares; cetyl pyridinium bromide; 2-(5-bromo-2-pyridylazo)-5-diethylaminephenol;
D O I：
10.1016/S0169-7439(98)00091-4
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Simultaneous determination of Mn, Zn, Co and Cd was studied by two methods, classical partial least squares (PLS) and kernel partial least squares (KPLS), with 2-(5-bromo-2-pyridylazo)-5-diethylaminephenol (5-Br-PADAP) and cetyl pyridinium bromide (CPB). Two programs, SPGRPLS and SPGRKPLS, were designed to perform the calculations. Eight error functions were calculated for deducing the number of factors. Data reductions were performed using principal component analysis. The KPLS method was applied for the rapid determination from a data matric with many wavelengths and fewer samples, Experimental results showed both methods to be successful even where there was severe overlap of spectra. (C) 1999 Elsevier Science B.V. All rights reserved.
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页码：87 / 93
页数：7
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