论文部分内容阅读
本文介绍了涕灭威在烟草和土壤中的残留测定方法。样品经丙酮提取、过氧乙酸氧化、二氯甲烷液液分配、弗罗里硅土柱层析净化后气相色谱分析,色谱图上无干扰峰出现。涕灭威砜在土壤、烤叶、和鲜叶中的最小检出浓度依次为0.005、0.025和0.01mg/kg,涕灭威及其两种代谢物在样品中的添加回收率为86~99%,变异系数<10%。
This article describes aldicarb residues in tobacco and soil testing methods. Samples were extracted by acetone, peracetic acid oxidation, dichloromethane liquid-liquid chromatography, Florisil column chromatography purified gas chromatographic analysis, no interference peaks appear on the chromatogram. The minimum detectable concentrations of aldicarb in soil, roasted leaves and fresh leaves were 0.005, 0.025 and 0.01 mg / kg, and aldicarb and its two metabolites were recovered in the samples The rate was 86-99% with a coefficient of variation <10%.