DETERMINATION OF ARSENIC BY STRIPPING POTENTIOMETRY ON GOLD ELECTRODES USING PARTIAL LEAST-SQUARES (PLS) REGRESSION CALIBRATION

被引：23

作者：

JAGNER, D

RENMAN, L

STEFANSDOTTIR, SH

机构：

[1] GOTHENBURG UNIV,DEPT ANALYT & MARINE CHEM,S-41296 GOTHENBURG,SWEDEN

[2] CHALMERS UNIV TECHNOL,S-41296 GOTHENBURG,SWEDEN

来源：

ELECTROANALYSIS | 1994年 / 6卷 / 03期

关键词：

ARSENIC; STRIPPING POTENTIOMETRY; STATISTICAL TREATMENT; PLS;

D O I：

10.1002/elan.1140060305

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Partial least-squares (PLS) regression calibration was applied to the determination of arsenic by stripping potentiometry on gold electrodes. In a procedure involving the direct electrochemical reduction of arsenic (V), this allowed interferences from copper (II), due to formation of intermetallic compounds, and tin (IV), due to stripping peak overlaps, to be modeled. At levels of arsenic below 1 mug L-1, additional problems with the gold surface background, as well as copper interferences from a reagent blank, could be successfully modeled, and the prediction of sample concentrations could be accurately performed.

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收藏

页码：201 / 208

页数：8

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