ICP-AES法测定土壤中铜、钒、镍和铬

Determination of Cu,V,Ni and Cr in Soil by the Technology of Inductively Coupled Plasma Atomic Emission Spectrometry

在HNO3-H2O2-HF体系中微波消解土壤样品，用电感耦合等离子发射光谱法测定土壤中的铜、钒、镍、铬，设定了最佳的样品处理条件和仪器条件，该方法测定铜、钒、镍、铬检出限分别为0．01mg／kg、0．05mg／kg、0．5mg／kg、0．10mg／kg，回收率为98．4％～102．0％，方法简便、准确。

After treated by microwave digestion in HNO3-H2O2-HF system, the soil samples were used to determine the contents of Cu, V, Ni and Cr by the technology of inductively coupled plasma atomic emission spectrometry. The conditions for both sample treatment and instruments were optimized. The detection thresholds for Cu, V, Ni and Cr of the method are 0. 01 mg/kg, 0. 05 mg/kg, 0. 5 mg/kg and 0. 10 mg/kg, respectively. The recoveries are from 98. 4% to 102. 0%. The method is rapid, simple and accurate.