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用激光显微光谱对元素进行定量分析曾有过报导,但对保持各种工作条件的稳定、标准样品的配制、如何选取内标等都不易解决。特别在岩矿分析方面,很难配制一套与自然矿物性质相一致的通用的人工标样。另外,由于矿物的物理性质(颜色、反射率、热性质等)的不同,对激光能量的吸收及传导也不同,因而造成取样量上的差异,导致蒸发量的变化。这更增加了定量分析的困难。因此激光显微光谱分析方法目前仍处在定性和半定量阶段。现在常用的半定量方法有:显线法、相对比值等。这些方法在实际运用中各有优缺点。本文介绍这些方法之外的修正系数法作半定量分析。
Quantitative analysis of elements by laser micro-spectroscopy has been reported, but it is not easy to maintain the stability of various working conditions, the preparation of standard samples and how to select the internal standard. Especially in rock and mine analysis, it is difficult to prepare a set of common artificial standard consistent with the nature of natural minerals. In addition, due to the different physical properties of the minerals (color, reflectivity, thermal properties, etc.), the laser energy absorption and conduction are also different, resulting in differences in sampling volume, resulting in changes in evaporation. This adds to the difficulty of quantitative analysis. Therefore, laser microspectroscopy is still in qualitative and semi-quantitative stage. Now commonly used semi-quantitative methods are: significant line method, the relative ratio and so on. These methods have their own advantages and disadvantages in practical application. This article describes the correction coefficient method outside of these methods for semi-quantitative analysis.