Determination of iodine ion by differential pulse anodic stripping voltammetry

被引：0

作者：

Tian, Y ^{[1
]}

Song, WB ^{[1
]}

Jiang, YX ^{[1
]}

Liu, Y ^{[1
]}

Chen, X ^{[1
]}

Xu, HD ^{[1
]}

机构：

[1] Jilin Univ, Dept Chem, Changchun 130023, Peoples R China

来源：

CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE | 1999年 / 20卷 / 01期

关键词：

differential pulse anodic stripping voltammetry; iodine; kelp; edible salt;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

I- may be oxidized to form IO3-. On this basis the determination of iodine ion by differential pulse anodic stripping voltammetry(DPAS) on Pt ball work electrode was investigated. For overcoming the absorption of IO3-, the electrode was washed by electrochemical method(at +1. 3 V) for 120 s, This method can detect 5. 00 X 10(-7) mol/L I- in 0. 1 mol/L KH2O4K2HPO4 buffer solution(pH=4), A good proportionality between the peak current of DPAS and iodine ion concentration in the range of 5. 00 X 10(-7) similar to 1, 50 X 10(-5) mol/L has been observed, This method was successfully applied to determination of iodine in kelp and edible salt.

引用

页码：28 / 31

页数：4

共 7 条

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