电感耦合等离子体质谱法测定砷滤饼中的铼  

ICP-MS Determination of Rhenium in Arsenic Filter Cake

作　　者：陈小燕[1] 吴勇[1] 吕茜茜[1] 

机构地区：[1]铜陵有色金属集团控股有限公司技术中心,铜陵244000

出　　处：《理化检验（化学分册）》2016年第6期684-686,共3页Physical Testing and Chemical Analysis(Part B:Chemical Analysis)

摘　　要：砷滤饼样品在硝酸-过氧化氢混合液中微波消解,采用电感耦合等离子体质谱法测定样品溶液中铼的含量。185 Re作为测量同位素,以^(193)Ir为内标物。铼的线性范围为50μg·L^(-1)以内,方法的检出限(3s)为0.037μg·L^(-1)。方法的加标回收率在96.0%~102%之间,测定值的相对标准偏差(n=11)在2.0%~3.8%之间。The sample of arsenic filter cake was treated with a mixture of HNO3 and H202 by microwave digestion, and rhenium in the sample solution was determined by ICP-MS. 185Re was selected as the isotope for measurement, ^193 Ir was used as internal standard. Linearity range of rhenium was found within 50 μg·L^-1 with detection limit （3s） of 0. 037μg·L^-1. Recovery and precision of the method were tested by standard addition method, giving values of recovery and RSD＇s （n=11） in the ranges of 96. 0%- 102% and 2. 0%- 3. 8% respectively.

关 键 词：电感耦合等离子体质谱法 砷滤饼 铼 微波消解 

分 类 号：O657.63[理学—分析化学]