Study on Determination of Iodine Ion at Chitosan Modified Glassy Carbon Electrode

Authors

Bin LIU, College of Materials Science and Engineering, Huaqiao University, Quanzhou 362011, ChinaFollow
Xiang-ying SUN, College of Materials Science and Engineering, Huaqiao University, Quanzhou 362011, China
Jin-rui XU, College of Materials Science and Engineering, Huaqiao University, Quanzhou 362011, China

Corresponding Author

Bin LIU(bliu@hqu.edu.cn)

Abstract

In this paper, a chitosan modified glassy carbon electrode was prepared by the method of covalent-bond reaction, and the anodic stripping voltammetric characteristics of iodine on the modified electrode was studied. The results showed that the modified electrode has higher adsorption and selectivity for I^- , and the sensitivity for I^- has been much improved in 0.1 mol·L^-1 KH₂PO₄ solution (pH=4.0). The anodic stripping peak current of I^- on the modified electrode varied linearly with I^- concentration in the range of 2.0×10^-6～2.0×10^-3 mol·L^-1, and the detection limit reached 2.0×10^-7 mol·L^-1.

Keywords

Chitosan, Iodine ion, Modified electrode, Anodic stripping voltammetry

DOI Link

https://doi.org/10.61558/2993-074X.1546

Publication Date

2004-02-28

Online Available Date

2004-02-28

Revised Date

2003-09-01

Received Date

2003-05-07

Recommended Citation

Bin LIU, Xiang-ying SUN, Jin-rui XU. Study on Determination of Iodine Ion at Chitosan Modified Glassy Carbon Electrode[J]. Journal of Electrochemistry, 2004 , 10(1): 59-64.
DOI: 10.61558/2993-074X.1546
Available at: https://jelectrochem.xmu.edu.cn/journal/vol10/iss1/10