离子色谱法测定高纯氯化锂中的微量杂质离子  

Ion-chromatographic Determination of Lithium Chloride for Microamounts Impurity-elements

作　　者：孙建之[1] 邓小川[1] 宋士涛[1] 阎春燕[1] 魏述彬[1] 

机构地区：[1]中国科学院青海盐湖研究所

出　　处：《海湖盐与化工》2005年第3期24-26,共3页Sea-Lake Salt and Chemical Industry

基　　金：中科院知识创新工程重要方向项目(KZCX3-SW-322)

摘　　要：研究了离子色谱法定量测定氯化锂中钠、钾、钙、镁杂质离子的方法。采用美国Dionex公司产DX-80型离子色谱仪,分离柱为IonPacCS12A-5μm阳离子分离柱,以2×10-2mol/L的甲基磺酸作为淋洗液,流速为2mL/min,测定了氯化锂中杂质离子的含量。相对标准偏差(RSD)为1.57%～2.39%,样品回收率为86.87%～100.10%。该方法简便、快速、准确可靠。Ion Chromatography method was applied to the determination of 4 elements(Na^+,K^+,Mg^(2+),Ca^(2+)) presenting as impurities in lithium chloride. IC was carried out on the DX-80 ion chromatograph with CS12A-5μm cation separation column. The flow-rate of eluation was 2mL/min. The method was proved to be accurate,convenient and rapid. RSD’S obtained were in the range 1.57%~2.39% and the recoveries were in the range 86.87%~100.10%.

关 键 词：离子色谱法 氯化锂 测定 

分 类 号：TQ124.4[化学工程—无机化工]