A UV-Vis analytical method for polymetallic solutions

ZHU Hongqiu; CHEN Junming; YIN Donghang; LI Yonggang; YANG Chunhua

doi:10.11949/j.issn.0438-1157.20161709

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A UV-Vis analytical method for polymetallic solutions

更新时间：2025-12-10

- A UV-Vis analytical method for polymetallic solutions
- CIESC Journal Issue 3, Pages: 998-1004(2017)
- 作者机构：
  
  中南大学信息科学与工程学院,湖南,长沙,410083
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20161709
  CLC： 657.32
- Online First：05 March 2017，
  
  Published：05 March 2017
- 稿件说明：
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ZHU Hongqiu, CHEN Junming, YIN Donghang, et al. A UV-Vis analytical method for polymetallic solutions[J]. CIESC Journal, 2017, (3): 998-1004.
DOI：

ZHU Hongqiu, CHEN Junming, YIN Donghang, et al. A UV-Vis analytical method for polymetallic solutions[J]. CIESC Journal, 2017, (3): 998-1004. DOI： 10.11949/j.issn.0438-1157.20161709.

摘要

针对Cu2+，Co2+，Zn2+ 3种金属离子混合溶液的紫外可见分光光度法（UV-Vis）光谱重叠而难以检测的问题，提出了一种基于改进型Monte Carle无信息变量消除（MC-UVE）方法的多金属离子浓度检测方法。在MC-UVE的基础上引入指数衰减函数（EDF），提出了一种改进的MC-UVE方法，并基于该方法对料液的紫外-可见光谱进行波长筛选；然后，利用筛选出的波长建立PLS模型并进行各组分浓度检测计算；最后，分别对基于MC-UVE方法和改进型MC-UVE方法PLS模型的计算结果进行对比分析。结果表明：改进型MC-UVE方法可筛选出对模型贡献度高的变量，基于该变量选择方法的PLS模型精度高。

Abstract

A polymetallic analytical method based on an improved Monte Carlo uninformative variable elimination (MC-UVE) was proposed to determine ion concentration by ultraviolet visible (UV-Vis) spectra of Cu2+

Co2+ and Zn2+ mixture solution. The improved MC-UVE

developed by incorporating exponential attenuation function (EDF)

was applied to selecting wavelength of UV-Vis spectra. And the partial least squares calibration model was built on concentrations of polymetallic components at the selected wavelength. Experimental results showed that the improved MC-UVE could select higher contributing model variables and develop more precise PLS model than MC-UVE.

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