Abstract:In order to carry out heavy metal monitoring and environmental protection, a method for the determination of heavy metals in solid biomass fuel by inductively coupled plasma mass spectrometry was established. The acid digestion method of total digestion of samples was experimentally studied, and the microwave digestion acid system and microwave digestion procedure were determined. Ge and in are used as internal standard elements to eliminate instrument interference. The linear relationship of the method is good, the linear coefficient is > 0.999, and the detection limit is 0.001 ~ 0.089mg/kg. The accuracy and stability of the method were verified by reference materials. The measured values of each element were within the range of the standard certificate, the relative standard deviation was 0.36% ~ 3.96%, and the average recovery of Hg was 104.7%. The accuracy of the method was verified by collaborative experiments in three laboratories, and the precision of the method was given. The method can be applied to the determination of heavy metals in biomass fuels in the field of biomass energy.