用空气—乙炔火焰原子吸收法直接测定钨酸中微量钙

Air-acetylene Flame Atomic Absorpion Method to Determine Trace Ca in Tungstic Acid

本文选用了焦(?)酚作释放剂,在空气—乙炔火焰中直接测定钨酸中的微量钙。用本法测定的钙的回收率较高并具有较多的优点。

This paper describes the atomic absorption method in which the pyr-ogallol is used as releasing agent to assay directly the trace amount of calcium in calcium tungstate in air-acetylene flame. This method has m-any advantages and obtains higher calcium recovery.