氧化钴中钴快速测定

DETERMINATION OF COBALT IN COBALT OXIDE

针对氧化钴中钴的测定，采用二甲酚橙为指示剂，ＥＤＴＡ为滴定剂测钴时，加入孔雀绿作衬托剂，可明显地改善滴定终点，使滴定终点灵敏，准确；建立了一种测定氧化钴中钴含量的简便、快速的分析方法，实际样品分析表明，其结果令人满意。

This paper describes the direct titration of cobalt in cobalt oxide at pH 5～6 using xylenol orange and malachite green as indicator and EDTA as titratant.It is simple and fast and has been satisfactorily used for the determination of cobalt in cobalt oxide.