CAJ | 학술논문

激光剥蚀-等离子体质谱(LA-ICPMS)已成为地球化学、宇宙化学和环境研究领域元素和同位素原位分析最重要的技术之一.文章介绍了多种类型的质谱仪及其使用的激光器.用途最广的LA-ICPMS仪器之一是单接收器扇形磁场质谱仪,配有Nd:YAG激光剥蚀系统(激光波长分为193 nm和213 nm两种),MPI Mainz实验室使用的就是这套系统，文章对此作一详细介绍.文中阐述了数据优化技术及其多种校正过程;介绍LA-ICPMS在痕量元素和同位素分析领域的一些应用,包括参考物质的研制,Hawaiian玄武岩、Martian陨石、生物骨针和珊瑚虫中痕量元素分析及熔融包裹体和富钙-铝碳质球粒陨石中的铅和锶同位素测量.
격광박식-등리자체질보(LA-ICPMS)이성위지구화학、우주화학화배경연구영역원소화동위소원위분석최중요적기술지일.문장개소료다충류형적질보의급기사용적격광기.용도최엄적LA-ICPMS의기지일시단접수기선형자장질보의,배유Nd:YAG격광박식계통(격광파장분위193 nm화213 nm량충),MPI Mainz실험실사용적취시저투계통，문장대차작일상세개소.문중천술료수거우화기술급기다충교정과정;개소LA-ICPMS재흔량원소화동위소분석영역적일사응용,포괄삼고물질적연제,Hawaiian현무암、Martian운석、생물골침화산호충중흔량원소분석급용융포과체화부개-려탄질구립운석중적연화송동위소측량.
Laser ablation (LA)-inductively coupled plasma-mass spectrometry (ICP-MS) has become one of the most important methods for in situ trace elemental and isotopic analysis in geochemistry, cosmochemistry and environmental research. For these purposes, different kinds of mass spectrometers and lasers are used, which are presented in this paper. One of the most useful LA-ICPMS instruments is the combination of a single-collector sector field mass spectrometer with Nd:YAG laser ablation systems (193 nm and 213 nm wavelengths, respectively). This design used in the MPI Mainz laboratory is described in detail in this paper. Data optimization techniques including diverse correction procedures are also discussed. To demonstrate the power of LA-ICPMS, several applications of trace elemental and isotopic analysis are presented, such as investigations of reference materials, trace element analysis in Hawaiian basalts, Martian meteorites, biological spicules and corals, as well as Pb and Sr isotope measurements of melt inclusions and Ca-Al rich inclusions of carbonaceous chondrites.