因子分析－导数分光光度法同时测定混合物中多组分的研究

Simultaneous Determination ofMulti-Substances in Mixture by FactorAnalysis-Derivative Spectrophotometry

本文以ＰＡＲ为显色剂，采用因子分析－导数分光光度法同时测定混合体系中镍、铜、锌．镍、铜、锌在一阶导数光谱最大波长处的一阶导数摩尔反光系数分别为３．８×１０５、２．７×１０５和５．５×１０５Ｌ．ｍｏｌ－１．ｃｍ－１，比基本光谱最大波长处的摩尔吸光系数分别提高５．８、７．１和５．７倍．对人工合成样的分析结果良好．

The factor analysis-derivative spectrophotometry method is used forsimultaneous determination of Ni,Cu,Zn with 4-(2-pyridylazo)-resorcinol reAR) asthe colour agent. The first derivative molar absorptivities of Ni, Cu and Zn are 3.8×105,2.7×105 and 5.5×105, respectively,and arc respectively 5.8, 7.1 and 5.7 times of those inconventional spectrophotometly.The results of determination of the synthetic samples arevery satisfaCtory.