Abstract
In 0.1 mol/L HAc solution(pH=2.89),the voltammetric behaviours of aloe emodin at a glassy carbon electode has been studied. One pair of current peak of the voltammogram may be attributed to a quasireversible two electron transfer of aloe emodin molecules at the glassy carbon electrode. A new method, the derivative anodic stripping voltammetry, for aloe emodin determination is described. The adsorptive potential of aloe emodin is -0.80V(vs. SCE),while its stripping potential is -0.38V(vs.SCE). The peak current is propotional to the concentration of aloe emodin over the range of 2.0×10 -7 ～8.0×10 -6 mol/L. The method is simple, rapid and reliable for aloe emodin analysis.
Keywords
Aloe emodin, Voltammetry, Derivative anodic stripping voltammetry, Determination
Publication Date
2001-11-28
Online Available Date
2001-11-28
Revised Date
2001-11-28
Received Date
2001-11-28
Recommended Citation
Xin hua LIN, Li ying HUANG, Wei CHEN, Hong-bin LUO, Bin QIU, Chun-yan LI.
Study of Electrochemistry of Aloe-emodin and Determination of It with 1.5th Order Derivative Anodic Stripping Voltammetry[J]. Journal of Electrochemistry,
2001
,
7(4): 487-493.
DOI: 10.61558/2993-074X.1442
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol7/iss4/10
