Applications of LA-ICP-MS in the elemental analyses of geological samples  

作　　者：LIU YongSheng HU ZhaoChu LI Ming GAO Shan 

机构地区：[1]State Key Laboratory of Geological Processes and Mineral Resources,China University of Geosciences

出　　处：《Chinese Science Bulletin》2013年第32期3863-3878,共16页

基　　金：supported by the National Natural Science Foundation of China(90914007and 41125013);111 Plans of Ministry of Education(B07039);the MOST Special Funds of the State Key Laboratory of Geological Processes and Mineral Resources(MSFGPMR201303);the Fundamental Research Funds for the Central Universities

摘　　要：Laser ablation-inductively coupled plasma-mass spectrometry(LA-ICP-MS),which is a rapidly developing analytical technique for the analyses of trace elements and isotopes,plays an important role in advancing the study of Earth science,especially with respect to micro-geochemistry.This article reviews the application of LA-ICP-MS in the elemental analysis of solid geological samples.Although LA-ICP-MS has been widely used in the spatial resolution analysis of element compositions and rapid bulk analysis of whole-rock and soil samples,the analysis accuracy is restricted by numerous factors,including the instrumental conditions,the elemental fractionation and matrix effects,the lack of sufficient matrix-matched reference materials,and the strategies for quantitative calibration and sensitivity drift correction.According to the type of samples and the analyte elements,the analysis accuracy can be improved through the optimization of instrument conditions and the adoption of suitable correction strategies and reference materials.Laser ablation-inductively coupled plasma-mass spectrometry （LA-ICP-MS）, which is a rapidly developing analytical technique for the analyses of trace elements and isotopes, plays an important role in advancing the study of Earth science, especially with respect to micro-geochemistry. This article reviews the application of LA-TCP-MS in the elemental analysis of solid geological samples. Although LA-ICP-MS has been widely used in the spatial resolution analysis of element compositions and rapid bulk analysis of whole-rock and soil samples, the analysis accuracy is restricted by numerous factors, including the instrumental condi- tions, the elemental fractionation and matrix effects, the lack of sufficient matrix-matched reference materials, and the strategies for quantitative calibration and sensitivity drift correction. According to the type of samples and the analyte elements, the analysis accuracy can be improved through the optimization of instrument conditions and the adoption of suitable correction strategies and reference materials.

关 键 词：LA-ICP-MS 痕量元素 分析应用 地质样品 电感耦合等离子体质谱 基质效应 校正策略 分析精度 

分 类 号：P575[天文地球—矿物学]