The Study of One-dimensional, Two-dimensional and Three-dimensional Elemental Distribution in Solids Using High Irradiance Laser Ionization Time-of-Flight Mass Spectrometry

Abstract

随着材料科学的快速发展,传统的基于溶液的分析方法因为其繁琐的样品前处理、易引入污染以及只能提供样品整体的组成信息等不足已经远远满足不了现代科学的需求,因此发展固体直接分析法一直备受关注。 本课题组自行研制的低压氦气辅助高功率密度激光电离飞行时间质谱(LI-TOFMS)被证实是一项非常优越的固体直接分析技术,应用范围涵盖了导体,半导体和非导体领域,可以同时进行包括非金属元素在内的多元素快速分析;此外,该项技术还可以实现无标准样品校准的半定量分析,这在固体直接分析中是非常关键的,因为基质匹配的固体标准样品一般难以获得。本论文主要是基于该项技术发展其对实际固体样品组成的空间分布分析方法,其中包括有...With the rapid development of material science, the traditional solution-based analytical strategy is difficult to satisfy the requirement of modern science, which is attributed to its shortcomings, such as tedious pretreatment for sample, ease to be contaminated, limited capability to get rough composition information etc. Considering these, developing a method with the capacity to directly analy...学位:理学博士院系专业:化学化工学院_分析化学学号:2052012015348

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