氧弹燃烧-电位滴定法测定煤中氯

Determination of Chlorine in Coal by Combustion Bomb-Potentiometric Titration

摘要: 介绍了氧弹燃烧-电位滴定法测定煤中氯离子含量的方法：将样品于加入已知量的碳酸铵溶液的氧弹内燃烧，释放出的氯被碳酸铵溶液吸收后用0．01mol／L的硝酸银标准溶液进行电位滴定。方法的检出限为0．007mg，回收率为96．4％-101．4％。用于实际样品的测定，准确度和精密度与ISO和国标方法相当，但操作简便、快捷。

Abstract: This article presents the method for determination of chlorine content in coal by combustion bomb-potentiometric titration. A weighed specimen is burned in a combustion bomb containing pressed oxygen and fixed-amount of ammonium carbonate solution.The chl