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为寻找替代传统分解、分离富集铬并测定铬铁矿矿样中钴的方法,并为克服酸分解法分析时间冗长、产生的氯化铬酰对人体有害的缺点,本法采用过氧化钠-氢氧化钠碱熔、离子交换树脂分离铬、原子吸收法的手段测定铬铁矿中锰,对离子交换树脂吸附分离条件进行了优化,并对实验方法的精密度、准确度、方法检出限进行了分析。
In order to find an alternative to the traditional method of decomposition, separation and enrichment of chromium and determination of cobalt in chromite ore samples, and overcome the shortcomings of acid decomposition analysis of time-consuming, resulting in chromic chloride harmful to human body, this method uses sodium peroxide - sodium hydroxide alkali fusion, ion exchange resin separation of chromium, atomic absorption method for the determination of chromite manganese, ion exchange resin adsorption separation conditions were optimized, and the experimental method of precision, accuracy, method was detected Limits were analyzed.