共 3 条
- [1] CHEN LY, 1986, J JISHOU U, P56
- [2] GOTO M, 1983, MIKROCHIM ACTA, V1, P121
- [3] 1971, STANDARD METHODS EXA
OSCILLOPOLAROGRAPHIC ADSORPTIVE WAVE DETERMINATION OF MICROAMOUNTS OF ORTHOPHOSPHATE
被引：5
作者：
CHEN, LY
机构：
[1] Department of Chemistry, Jishou University, Hunan
来源：
关键词：
D O I：
10.1016/0039-9140(92)80092-R
中图分类号：
O65 [分析化学];
学科分类号：
070302 ;
081704 ;
摘要：
In the system HCl Sb(III)-ammonium molybdate-acetone butanone, PO43-, Sb(III) and Mo(VI) form a ternary heteropoly acid, which can be adsorbed on a dropping mercury electrode and reduced to a heteropoly blue. The electrochemical reaction produces a sensitive polarographic wave with peak potential of -0.42 V vs. SCE. The limit of determination of phosphate is 6 x 10(-8)M. The coefficients of variance are 10 and 3% for 0.1 and 1-mu-M phosphate, respectively.
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页码：765 / 768
页数：4
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