Determination of Germanium contents in soil by inductively coupled plasma mass spectrometry
A method for the determination of germanium in soil by inductively coupled plasma mass spectrometry ( ICP-MS) was established. The soil sample was added with nitric acid, hydrofluoric acid, perchloric acid and phosphoric acid, and digested by electric heating plate. The Rh element was used as the internal standard to correct the interference. The method has good linearity, the correlation coefficient is 0. 9999 and the detection limit of the method is 0. 03 μg/g. The precision and accuracy of the method are good and the relative deviation is less than 10%. The results were in accordance with the national soil standard substance analysis, and were consistent with the standard value. In accordance with the requirements of experimental analysis, the whole method has low detection limit, simple, fast and accurate, and can be used to analyze germanium in soil.