Cuaminosul-fate in soil and tobacco was determined by AAS,the lowest detection limit for Cuaminosul-fate was 2.7 × 10-10 g and the minimum detectable quality was 0.03 mg/kg. The recoveries of Cuaminosul-fate from soil and tobacco spiked with 0.03,5.0,10.0 mg/kg ranged from 88.65%-101.2%,with the coefficient of variation of 2.3%to 4.0%,the half-life of Cuaminosul-fate in tobacco and soil is 3.2 d and 1.3 d respectively.%应用火焰原子吸收对烟草和土壤中络氨铜的消解动态进行了测定，方法的最低检出量为2.7×10-10 g，最低检出质量分数为0.03 mg/kg，在0.03、5.0、10.0 mg/kg三种添加水平下，烟草的添加回收率范围为88.65%~101.2%，变异系数范围为2.3%~4.0%，络氨铜在烟草和土壤上的半衰期分别为3.2 d和1.3 d .
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