DIFFERENTIAL-PULSE POLAROGRAPHY AND ADSORPTIVE STRIPPING VOLTAMMETRIC DETERMINATION OF URIC-ACID

被引：0
|
作者：
GANDOUR, MA
ENSAFABOULKASIM
AMRALLAH, AH
FARGHALY, OA
机构：
[1] FAC SCI ASWAN,DEPT CHEM,ASWAN,EGYPT
[2] FAC SCI ASSIUT,DEPT CHEM,ASSIUT,EGYPT
来源：
JOURNAL OF THE INDIAN CHEMICAL SOCIETY | 1992年 / 69卷 / 12期
关键词：
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The complex formation between uric acid and zinc, cadmium and lead ions has been investigated using differential pulse polarography in 0.01 M NaNO3. The complexes formed by Cd(II) and Pb(II) with uric acid have the stoichiometry of 1 : 2. Zn(II) does not give any indication of complexation with uric acid. A sensitive voltammetric method is developed for the quantitative determination of uric acid based on controlled adsorptive preconcentration of uric acid on the hanging mercury drop electrode. The modes used are direct current stripping voltammetry and differential pulse stripping voltammetry. The adsorptive stripping response was evaluated with respect to preconcentration time and potential, concentration dependence and composition of supporting electrolyte.
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页码：813 / 818
页数：6
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