HJ 680-2013 in English

本标准规定了测定土壤和沉积物中汞、砷、硒、铋、锑的微波消解/原子荧光法。
本标准适用于土壤和沉积物中汞、砷、硒、铋、锑的测定。
当取样品量为0.5g 时，本方法测定汞的检出限为0.002mg/kg，测定下限为0.008mg/kg；
测定砷、硒、铋和锑的检出限为0.01mg/kg，测定下限为0.04mg/kg。

Scope

This standard specifies the microwave digestion/atomic fluorescence method for the determination of mercury, arsenic, selenium, bismuth and antimony in soil and sediments. This standard is applicable to the determination of mercury, arsenic, selenium, bismuth, and antimony in soil and sediments. When the sample amount is 0.5 g, the detection limit of mercury measured by this method is 0.002 mg/kg, and the lower limit of determination is 0.008 mg/kg; the detection limit of arsenic, selenium, bismuth and antimony is 0.01 mg/kg. The lower limit is 0.04 mg/kg.