DIFFERENTIAL PULSE POLAROGRAPHIC-DETERMINATION OF TRACE AMOUNTS OF TIN AND ITS APPLICATION TO ZINC-ALUMINUM ALLOYS

被引：3
作者：
HITCHEN, A
机构：
[1] Special Analysis Section, Chemical Laboratory, Mineral Sciences Laboratories, Canada Centre for Mineral and Energy Technology, Department of Energy, Mines and Resources, Ottawa
来源：
TALANTA | 1979年 / 26卷 / 05期
关键词：
D O I：
10.1016/0039-9140(79)80196-4
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A differential pulse polarographic procedure for the determination of 0.001-0.02% of tin in zinc-aluminium alloys is described. The tin is first separated from interfering elements such as copper and lead by homogeneous co-precipitation with aluminium succinate. The tin is determined polarographically in a 1M hydrochloric acid + 4M ammonium chloride electrolyte. After the tin has been masked with alkaline citrate a second polarogram is recorded to ascertain whether residual lead is present and, if so, a correction is applied. © 1979.
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页码：369 / 372
页数：4
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