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建立了一种通过减少酸用量新的节能环保型消解地球化探样品的消解方法,运用ICP-MS对Ba、Be、Bi、Co、Cr、Cs、Cu、La、Li、Mn、Mo、Ni、Pb、Rb、Sb、Sr、Th、Ti、Tl、U、V、W、Zn 23元素含量进行了测试。实验研究了样品取样量、溶样压力、溶样温度、用酸量等消解样品的基本条件,优化了仪器的工作参数,测定了各元素的检出限,进行了样品的精密度实验,RSD在0.03%—5.61%之间。用此法对岩石、水系沉积物、土壤等不同性状的国家一标准物质进行测定,取得了较好的结果,且方法操作简单,成本低,适用于批量化探样品的分析测试。
A new energy-saving and environment-friendly digestion method for digestion of geochemical exploration samples was set up. ICP-MS was used for the determination of Ba, Be, Bi, Co, Cr, Cs, Cu, La, Li, Mn, Mo, Ni , Pb, Rb, Sb, Sr, Th, Ti, Tl, U, V, W, Zn 23 were tested. The basic conditions of sample digestion, such as sample volume, sample pressure, sample temperature, and acid amount were experimentally studied. The working parameters of the instrument were optimized, the detection limits of each element were determined, and the precision of the sample was tested. The RSD Between 0.03% -5.61%. This method was used to determine the national standard materials of different traits such as rocks, sediments and soils. The method has good results and is easy to operate and low in cost. It is suitable for the analysis and testing of batch geochemical exploration samples.