POLAROGRAPHIC-DETERMINATION OF OSMIUM WITH THE OSMIUM(VIII) CERIUM(IV) ARSENIC(III) SYSTEM

被引：16
|
作者：
JIANG, ZL [1 ]
LIANG, AH [1 ]
机构：
[1] GUILIN 3RD PHARMACEUT FACTORY,DEPT QUALITAT CONTROL,GUILIN,PEOPLES R CHINA
来源：
TALANTA | 1990年 / 37卷 / 11期
关键词：
D O I：
10.1016/0039-9140(90)80157-B
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A highly sensitive and novel polarographic method has been developed for determination of ultratrace amounts of osmium, based on the catalysis of the cerium(IV)-arsenic(III) reaction by osmium(VIII). The reaction rate is monitored by measuring the arsenic(III) with a single-sweep oscillopolarograph. Osmium concentrations from 7.0 × 10-11 to 5.0 × 10-9 M can be determined by the initial rate method. The method has been applied to determination of osmium in refined ore and chlorination residues with satisfactory results. © 1990.
引用
收藏
页码：1077 / 1080
页数：4
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