摘要
采用解蔽络合滴定法测定锡合金中锡含量,确定了最佳解蔽络合滴定条件;比较了邻苯三酚和氟化铵两种解蔽剂解蔽效果;探讨了共存离子对锡测定的影响;该方法测量的相对标准偏差为0.36%,加标回收率在98.7%~100.7%之间,方法准确,测量结果满意。
The method for tin in tin alloy by demasking complexometric titration was studied. The optimum conditions of demasking complexometric were determined,and the demasking effect of pyrogallol was compared with ammonium fluoride. The influence of coexisting ions on determination of tin was investigated. The relative standard deviation（ RSD） was 0. 36%,and the recovery ranges from 98. 7% to 100. 7%. The method is accurate,and the results of measurements are satisfactory.
出处
《湖南有色金属》
CAS
2015年第2期65-67,共3页
Hunan Nonferrous Metals
关键词
锡合金
锡
解蔽络合滴定
解蔽剂
tin alloy
tin
demasking complexometric titration
demaskin agent
