库仑滴定法测定六氟磷酸锂中微量水分  

Determination of Microamounts of Moisture in Lithium Hexafluorophosphate by Coulometric Titration

作　　者：宋士涛[1] 马培华[1] 邓小川[1] 吴素霞 王相文[1] 孙建之[1] 

机构地区：[1]中国科学院青海盐湖研究所 [2]青海省气象科研所,西宁810008

出　　处：《理化检验（化学分册）》2008年第1期66-67,70,共3页Physical Testing and Chemical Analysis(Part B:Chemical Analysis)

基　　金：国家科技攻关计划课题(2001BA602B-01)

摘　　要：基于与卡尔-菲休试剂的反应用库仑滴定法测定了六氟磷酸锂中的微量水分。对同一试样的不同进样量（0．5～5．0mL共10份）按所提出方法对其水分进行了测定，所得结果在26．3～27．9μg·g^-1之间，平均值为27．4μg·g^-1，相对标准偏差为0．72％。Trace amounts of moisture in lithium hexafluorophosphate was determined by coulometric titration based on the reaction with Karl-Fisher reagent. Results of determination in a same sample with 10 different amounts of the sample solution introduced in the range from 0. 5 to 5. 0 mL, found by this method were in the range of 26.3 μg·g^-1 to 27. 9μg·g^-1 （av. 27. 4μg·g^-1） with value of standard deviation 0. 72%.

关 键 词：库仑滴定法 卡尔-菲休试剂 水分 六氟磷酸锂 

分 类 号：O657[理学—分析化学]