利用ZAAS中的σ组分测定高含量锶

Determination of Sr in Geological Materials by Using σ-Component in ZAAS

本文研究了利用Zeeman分裂的σ组分-火焰原子吸收光度法测定锶矿中高含量锶的可行性及基本条件。初步探讨了干扰机理并选择了可行的消除方法,拟定了在HNO_3介质中,以钙盐作释放剂AAS测定高含量Sr的分析方法。且方法具有良好的准确度和精密度,操作简便快速,用于样品分析获得满意结果。

The feasibility and fundamental conditions for the determination of Sr as a major constituent in geological materials using σ-component of Zeeman split in flame AAS have been studied in order to devise a procedure which is capable of preventing interferences. The proposed method uses a nitric acid medium and uses calcium salt as releasing agent. The method is simple and gives satisfactory results in sample analyses.