摘要
应用离子色谱法测定氧化铁粉中的氯化物。采用蒸馏法将样品中的氯化物以氯化氢的形式蒸馏出来 ,以达到与基体分离的目的。经试验确定了溶样酸、蒸馏剂及其用量、淋洗液及流速等实验条件。该方法测定结果的相对标准偏差为 3.1% (n =10 ) ,加标平均回收率为 10 0 .15 %。方法简便实用 ,准确度高 ,与化学法测定结果吻合。
The content of chloride in ferric oxide powder was determined by ion chromatography. Chloride was separated from base by distillation method. Dissolution acid, distillation reagent and its volume, elution liquid and its flow rate were defined. The relative standard deviation of results is 3.1% and the recovery is 100.15%.The method is simple and accurate.The result is consistent with that of the chemical method.
出处
《化学分析计量》
CAS
2004年第5期39-40,共2页
Chemical Analysis And Meterage
