粗铅及铅锑合金中铅含量分析方法的改进

研究了粗铅及铅锑舍金中铅的测定方法。采用本文介绍的分析方法和传统分析方法对粗铅及Pb—Sb合金中Pb含量的测定进行了比较实验。发现本方法中以NH4F为掩蔽剂，在分析粗铅及铅锑合金中铅含量时不受杂质因素的干扰，具有分析结果准确、不需重复分析等优点。改变了过去传统分析方法中指示终点不明，结果可靠性小的缺点。

Improvement of Analysis Way on the Content of Pb in the Raw Lead and Pb-Sb Alloys

In this paper,the analysis way of lead in raw lead and Pb-Sb alloys was studied.The traditional analysis way was compared with the new analysis way that was introduced in this paper.It is clear:usingNH 4F as a shelter agent,the result of lead content in raw lead and Pb-Sb alloys is not affected by foreign matter,the result is accurate,and only one time needs to analyze.The defect of traditional analysis way,such as the equilibrium normal point is not clear and the result is not accurate,is overcome.