摘要
于稀硝酸体系中 ,用氯化锶作释放剂 ,用火焰原子吸收光谱法测定球墨铸铁中的镁 ,铁、锰、硅、锶等元素对测定无明显干扰。对球墨铸铁中微量镁的测定 ,相对标准偏差 (n=7)为 2 .0 %
For AAS method of the determination of Mg , the effects of Fe?Mn?Si?Sr in the Nodular casting-iron was discussed in this papers SrCl 2·6H 2O is used as the release agent in watery nitric-acid system in this method The Elements of Fe?Mn?Si?Sr are not disturbed to the determination The RSD of the determination of Mg is 2 1%
出处
《湖南冶金》
2002年第3期46-48,共3页
Hunan Metallurgy
