半微量分析技术有取样量少,所用的分析器皿小,试剂用量少等特点,在分析原理上与常量分析基本相同,在目前人们对环境保护引起注意的时候,半微量技术有尽可能减少对环境污染的优点。无机分析上仍采用常量分析的方法。如钢铁分析中需要除铬时产生大量极毒化合物CrO_2Cl_2,若采用半微量分析技术则大为减少,因此不仅节约,省力,而且也减少污染。 Semi-micro-analysis of a small amount of sampling technology, the use of small analytical instruments, reagents and other small amount of features in the analysis of the principle and the constant analysis is basically the same people in the current attention to environmental protection, semi-micro-technology has been reduced as much as possible The advantages of environmental pollution. Inorganic analysis still uses the method of constant analysis. Such as steel analysis requires chromium in the production of a large number of extremely toxic compounds CrO_2Cl_2, if the use of semi-micro analysis technology is greatly reduced, so not only saving, effort, but also reduce pollution.