碱熔-离子色谱法测定次氧化锌中的氯离子  

DETERMINATION OF CHLORIDE ION IN ZINC HYPOXIDE BY ION CHROMATOGRAPHY WITH ALKALI FUSION

作　　者：刘玮[1] 刘英[2] 阳兆鸿 

机构地区：[1]北京矿冶研究总院,北京102600 [2]桂林理工大学化学与生物工程学院,广西桂林541004

出　　处：《矿冶》2015年第2期78-80,共3页Mining And Metallurgy

摘　　要：建立了碱溶-离子色谱法测定次氧化锌中氯离子的分析方法。采用碳酸钠半熔-水浸出方法预处理样品,阳离子交换树脂去除重金属离子,以碳酸钠(2.5 mmol/L)和碳酸氢钠(3.5 mmol/L)混合溶液作为淋洗液,离子色谱法测定样品。方法的平均加标回收率为98.60%,检出限为0.015%。本方法灵敏度高,精密度好,预处理样品简单,易于操作,适合批量样品的测定。An analytical method for the determination of chloride in zinc hypoxide by using alkali fusion for sample preparation and ion chromatography was established. Using sodium carbonate semi molten-water leaching method for sample pretreatment, cation exchange resin for removal of heavy metals, and sodium carbonate （2.5 mmol/L） and sodium bicarbonate （3.5 mmol/L） mixture solution as eluent, the content of chloride ion in the sample was determined by ion chromatography. The average recovery rate of the method is 98.60% , the detection limit is 0. 015%. This method is of high sensitivity, good precision, simple in the pretreatment of sample, easy to operate, and suitable for determination of batch samples.

关 键 词：碱熔 离子色谱 次氧化锌 氯离子 

分 类 号：O657.7[理学—分析化学]