分析测试学报2001，Vol.20Issue(1)：40-43,4.
同时测定铜、镍、锌的非线性偏最小二乘分光光度法
Simultaneous Determination of Cu, Ni and Zn by Non-linear PLS Spectrophotometry
王玉枝 1张银堂 1周毅刚2
作者信息
- 1. 湖南大学化学化工学院,
- 2. 湖南医科大学,
- 折叠
摘要
Abstract
The optimum conditions of the colour reaction of copper, nickeland zinc with 1-[(5-bromo-2-pyridyl)-azo]-2,7-dihydroxy-naphthalene(5-Br-PADN) have been established in the presence of the sensitizer/solubilizer Triton X-100. The proposed method can be applied for the simultaneous spectrophotometric determination of these three elements with the aid of nonlinear partial least square technique (NLPLS). The selection of optimal wavelength was achieved by using the iterative partial least square method(IPLS). An algorithm MATLAB compiled by the authors gave satisfactory results for synthetic samples, indicating that the method not only overcomes interference among the three elements, but also solves the nonlinear problem between absorptivity and concentration.关键词
铜/镍/锌/偏最小二乘法/分光光度法/同时测定/MATLAB程序分类
化学化工引用本文复制引用
王玉枝,张银堂,周毅刚..同时测定铜、镍、锌的非线性偏最小二乘分光光度法[J].分析测试学报,2001,20(1):40-43,4.
