激光显微光谱分析技术虽已在许多部门获得了应用,因受方法和样品的限制,尚未建立起“通用”的定量分析方法。定量分析的困难在于:分析样品大多数是未知成份的固体样品,分析时不能选取内标或添加内标;采用外标比较法时,要配制在微小区域内元素分布均匀的标样较困难,而且又受激光输出能量和火花激发能量波动、样品性质不同的影响。然而在一些实际应用中,有的样品是已知的,只要求分析其中的微量元素。在这种情况 Though the technology of laser micro-spectroscopy has been applied in many departments, the method of “quantitative analysis” has not yet been established due to the limitations of the methods and samples. The difficulty of quantitative analysis is that: the analysis sample is mostly a solid sample with unknown components, the internal standard can not be selected or the internal standard can be selected for analysis; when the external standard comparison method is adopted, it is difficult to formulate the standard uniform- But also by the laser output energy and spark excitation energy fluctuations, the sample properties of different effects. However, in some practical applications, some samples are known and only require analysis of the trace elements therein. In this case