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激光原位微区分析可在微观尺度上完成样品的元素定量分析或同位素组成测定,为研究成岩、成矿物质来源和追踪地壳与地幔演化历史提供了独特的观察视野。但是,激光剥蚀等离子体质谱的一些缺陷阻碍了地质样品的高精度、高空间分辨率分析,比如:剥蚀池的位置效应、低剥蚀速率下信号波动影响、激光剥蚀脉动式信号导致的光谱螺纹效应、高频激光剥蚀造成的元素分馏效应等。为此,一些学者设计了不同规格和样式的激光剥蚀信号平滑装置来克服这些问题。但是,这些信号平滑装置普遍还存在气体吹扫时间过长和降低激光剥蚀信号
The laser in situ microanalysis can perform elemental quantitative analysis or isotopic composition measurement on a microscopic scale, providing a unique field of vision for studying diagenesis, sources of metallogenic materials and tracking the evolution of the crust and mantle. However, some of the shortcomings of laser ablation plasma mass spectrometry have hindered the high precision and high spatial resolution analysis of geological samples such as the location effect of the erosion cell, the influence of signal fluctuation at low erosion rate, the spectral thread effect caused by laser ablation pulsed signal , High-frequency laser ablation caused by the elemental fractionation effect. To this end, some scholars have designed different specifications and styles of laser ablation signal smoothing device to overcome these problems. However, these signal smoothing devices generally have a long gas purging time and reduce the laser ablation signal