锌合金ZZnAl_(4-1)中Mg、Fe、Pb、Sn的光谱分析方法

Method for Spectrum Analysis of Zinc-Base Alloys in ZZnAl4-1 Mg, Fe, Pb, Sn

本方法提供了将样品采用稀硝酸溶解,蒸干,在400℃温度下灼烧成硝酸盐氧化物,研磨成细粉,以光谱纯碳粉作缓冲剂,用电弧激发试样进行分析,其准确度:Mg±4.4％,Fe±7.4％,Pb±2.7％,Sn±3.1％,现已用于生产分析。

In this way,the sample should be dissolved in dilute nitric acid,evaporated to dryness,burnt into ni-trate oxide with the temperature raised to 400℃,and ground to powder.Then the sample should be evokedby arc light to be analyzed with spectroscopic pure carbon as buffer.The accuracy can be within Mg4.4%, Fe 7.4%, Pb 2.7%, Sn 3.1%. It has already been used in production.