【摘要】 采用反相高效液相色谱法对烟草及土壤中甲氨基阿维菌素苯甲酸盐emamectin benzoate进行残留量分析。样品采用丙酮/水提取,Florisil-SPE柱净化,紫外检测器(UVD)测定。甲氨基阿维菌素苯甲酸盐在本方法仪器条件下最低检出限为2.0×10-10g(B1a);1.0×10-9g(B1b)。样品在烟叶中的平均回收率为94.92%～102.18%,相对标准偏差为2.66%～3.69%;在土壤中的平均回收率为96.76%～99.02%,相对标准偏差为2.23%～4.48%。更多还原

【Abstract】 Residue analysis of emamectin benzoate in tobacco and soil by Reversed-Phase high performance liquid chromatography was assessed.Residues were first extracted with acetone and water,filtrated with Florisil-SPE columns,and then determined with UV detection.Lowest detection limit with this method were 2.0×10-10g(B1a)and 1.0×10-9g(B1b).The average spiked recoveries were 94.92%-102.18% in tobacco leaves,and 96.76%-99.02% in the soil.The precision of the method is acceptable with relative standard deviation(RSD) of 2.66%-3.69% for tobacco leaves and 2.23%-4.48% for the soil,respectively.更多还原