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为了评价这种快速的地质样品的溶解方法,我们分析了51个地质样品,其中包括岩石、水系沉积物、硫化物矿石、土壤等。这种溶样方法是使用微波加热的HCl—HNO_3—HF的高压溶样技术。所得溶液由电感耦合等离子体光学发射光谱(ICPOES)分析,而残余物由直流电弧摄谱仪进行分析,对于所测大部分物料中的大多数元素,该溶样方法的回收率高于95％;当难熔矿物存在时,Al、Cr、Li、Pb、Si和Zr的回收率较低。采用这种方法,每人每天可制备多达100个样品,
To evaluate this rapid method of dissolving geological samples, we analyzed 51 geologic samples, including rocks, sediments, sulfides, soils and so on. This sample-dissolving method is a high-pressure sample-dissolving technique using microwave-heated HCl-HNO 3 -HF. The resulting solution was analyzed by Inductively Coupled Plasma Optical Emission Spectroscopy (ICPOES) and the residue was analyzed by a DC arc spectrometer. The recovery of this solution was above 95% for most of the elements tested for most of the materials tested. The recoveries of Al, Cr, Li, Pb, Si and Zr were lower when refractory minerals were present. Using this method, up to 100 samples per person per day can be prepared,