摘要
采用电感耦合等离子体质谱（ICP—MS）法检测高纯氯化铷中27种痕量杂质元素含量，对仪器参数进行优化，选择Be、Sc、Y、Rh、In、R在一定浓度范围内，各元素浓度与信号强度呈良好的线性关系，相关系数为0．9e的混合内标校正仪器的信号漂移和基体效应。863～1．0000，方法的检出限为0．003～0．66ng／mL。各元素测定结果的相对标准偏差随元素含量增大而减小，大部分元素的加标回收率在80％～110％之间。
The instrument parameters were optimized, then 27 kinds of trace impurities in high purity rubidium chloride were determined by inductively coupled plasma mass spectrometry （ ICP - MS）. The mixed internal standard of Be, Sc, Y, Rh, In, Re was used to correct the signal shift of instrument and matrix effect. The concentration of each element was linear with the intensity of signal, and the linear correlation coefficients were 0. 9863 - 1. 0000. The detection limits were 0. 003 -0.66 ng/mL. The relative standard deviation decreased as the element content increased. The recoveries for most elements were in the range of 80% - 110%.
出处
《化学分析计量》
CAS
2011年第3期19-22,共4页
Chemical Analysis And Meterage
关键词
电感耦合等离子体质谱法
高纯氯化铷
杂质
inductively coupled plasma mass spectrometry, high purity rubidium chloride, impurity element
