应用原子荧光光谱法测定砷的含量。以深层生土、地表熟土为样品,采用顺序注射氢化物发生-原子荧光光谱法进行测定。在最佳实验条件下,方法的线性范围在2—60μg/L以内,相关系数r=0.9993,检出限为0.16μg/L,测定标准溶液的RSD为1.6%(n=11),样品加标回收率为96.5%—103.5%,方法简单、快速,可测定土壤中的砷。 Determination of Arsenic by Atomic Fluorescence Spectrometry. The soil samples from deep soil formation and surface soil samples were determined by sequential injection hydride generation - atomic fluorescence spectrometry. Under the optimal experimental conditions, the linear range of the method was within 2-60μg / L, the correlation coefficient was 0.9993, the detection limit was 0.16μg / L, the RSD of the standard solution was 1.6% (n = 11) The standard recovery was 96.5% -103.5%. The method is simple and rapid and can determine arsenic in soil.