Electrochemical Behavior and Determination of Curcumin

Authors

Ping WU, College of Pharmaceutical, Fujian Medical University, Fuzhou 350004, China
Wei CHEN, College of Pharmaceutical, Fujian Medical University, Fuzhou 350004, China
Ya-feng ZHANG, College of Pharmaceutical, Fujian Medical University, Fuzhou 350004, China
Xin-hua LIN, College of Pharmaceutical, Fujian Medical University, Fuzhou 350004, ChinaFollow

Corresponding Author

Xin-hua LIN(xinhua63@163.com)

Abstract

In 0.1 mol/L phosphate buffer solution (pH 3.0), the voltammetry behaviors of curcumin at a glassy carbon electrode have been studied.One pair of current peaks of the voltammogram may be attributed to a reversible one-electron transfer of curcumin molecules at the glassy carbon electrode.A new method, the differential pulse voltammetry, for curcumin determination is described. The adsorptive potential of curcumin is (+0.8) V(vs. SCE),while its peak potential of curcumin is +0.386V (vs. SCE). The peak current is proportional to the concentration of curcumin over the rage of 1.0×10^-8 mol/L~2.5×10^-7 mol/L. A detection limit of 4.0×10^-9 mol/Lof curcumin can be estimated. The method is simple, rapid, sensitive and reliable.

Keywords

Curcumin, Glassy carbon electrode, Differential pulse voltammetry

DOI Link

https://doi.org/10.61558/2993-074X.1667

Publication Date

2005-08-28

Online Available Date

2005-08-28

Revised Date

2005-01-02

Received Date

2004-12-13

Recommended Citation

Ping WU, Wei CHEN, Ya-feng ZHANG, Xin-hua LIN. Electrochemical Behavior and Determination of Curcumin[J]. Journal of Electrochemistry, 2005 , 11(3): 346-349.
DOI: 10.61558/2993-074X.1667
Available at: https://jelectrochem.xmu.edu.cn/journal/vol11/iss3/21