离子色谱法测定氢氧化锂中F^-、Cl^-、SO_4^(2-)  

Determination of Fluorine,Chlorine and Sulfate in Lithium Hydroxide by Ion Chromatography

作　　者：刘琢艺 冯伟伟[1] 刘伟[1] 陈云明[1] 李兵[1] 王定娜 胡银[1] LIU Zhuo - yi FENG Wei - wei LIU Wei CHEN Yun - ming LI Bing WANG Ding- na HU Yin(Nuclear Power Institute of China, Chengdu 610005, China)

机构地区：[1]中国核动力研究设计院,四川成都610005

出　　处：《盐科学与化工》2017年第9期8-10,共3页Journal of Salt Science and Chemical Industry

摘　　要：研究氢氧化锂中F^-、Cl^-、SO_4^(2-)的测定方法。样品采用强酸性阳离子交换树脂进行样品溶液预处理以除去基体离子的干扰。采用离子色谱仪进行测定,分离柱为IonPac AS11-HC,3×10^(-3)mol/L NaOH溶液为流动相,流速为1 mL/min,测定了氢氧化锂中F^-、Cl^-、SO_4^(2-)的含量,线性相关系数分别为0.999 6,0.999 5,0.999 8,相对标准偏差≤2.1%,回收率均在85%以上。A method was applied in the determination of F^-,Cl^-and SO_4^（2-）present as impurity in lithium hydroxide. Sample preparation was achieved by strong-acid cation resin. The analysis was carried out on the ion chromatograph and the IonPac AS11-HC was used as anion separation column. 3 × 10^（-3）mol/L NaOH was used as the eluent at a flow rate of 1 mL/min and F^-,Cland SO_4^（2-）was determined in the eluate. The correlation coefficient was 0. 999 6,0. 999 5 and 0. 999 8,respectively. The relative standard deviation was less than 2. 1% and value of recovery was over 85%.

关 键 词：离子色谱法 氢氧化锂 氟 氯 硫酸根 

分 类 号：TS312[轻工技术与工程]