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激光诱导击穿光谱(LIBS)是一种新型的元素分析技术,具有灵敏度高、快速、可多元素同时测量并可非接触遥测等优点,非常适合针对空间其他星球的空间遥测。搭建了一套激光诱导击穿光谱实验装置,并通过配置特定样品,开展了一系列LIBS探测实验。根据含有不同浓度的同种元素样品的LIBS实验结果,获得元素浓度与谱线强度的关系曲线(定标曲线)。对中南民族大学附近的土壤进行了LIBS实验,发现土壤中含有Mg、Ca、Na等18种元素,对河南云台山茱萸峰岩石的LIBS实验结果仅获得Fe、Mg、Ca3种金属元素。比较这两种实际样品的LIBS实验结果表明,检测样品的物理结构对LIBS的实验结果有一定影响。
Laser Induced Breakdown Spectroscopy (LIBS) is a new elemental analysis technique that has the advantages of high sensitivity, rapidity, simultaneous measurement of multiple elements and non-contact telemetry, making it ideal for space telemetry for other planets in space. A laser-induced breakdown spectroscopy experimental setup was set up and a series of LIBS detection experiments were carried out by configuring specific samples. According to the results of LIBS containing different concentrations of the same elemental sample, the relationship curve between the element concentration and the line intensity (calibration curve) is obtained. LIBS experiments were carried out on the soils near South-central University for Nationalities. It was found that the soil contains 18 elements such as Mg, Ca and Na. Only Fe, Mg and Ca3-type metal elements were obtained from the LIBS experiment of the Yuutan peak of Henan Yuntai. The results of LIBS experiment comparing the two actual samples show that the physical structure of the test sample has an impact on the experimental results of LIBS.