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Journal of Automatic Chemistry
Volume 17 (1995), Issue 3, Pages 115-118

Simultaneous spectrophotometric determination of copper(II), lead(II) and cadrnium(II)

Department of Chemistry, Inner Mongolian University, Inner Mongolia, Huhehot 010021, China

Copyright © 1995 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The full spectrum technique in the fourier domain was studied for simultaneous determination of Cu(II), Pb(II) and Cd(II) with 4-(2-pyridylazo) resorcinol (PAR). A program called SPGRFSQ. was designed to perform the calculations. Seven error functions were calculated for deducing the number of factors. Data reduction was performed using principal component analysis (PCA) algorithm. Experimental results showed the method to be successful even where there was severe overlap of spectra.