[目的]建立气相色谱测定大豆和植株中戊唑醇残留的分析方法.[方法]样品经丙酮提取、液-液分配、弗罗里硅土层析柱净化后,采用气相色谱氮磷检测器进行测定.[结果]在添加量为0.02～1.00 mg/kg范围内,戊唑醇在大豆和植株中的平均回收率分别为90.7%～105.3%和93.2%～100.6%,相对标准偏差分别为2.1%～8.9%和1.7%～4.6%;方法的最低检出量为1×10g,最低检测浓度为0.01 mg/kg.[结论]该方法简单、快速,结果准确,灵敏度、精密度和检测限均符合农药残留分析的要求.%[ Objective ] The aim was to establish a residue analysis method of tebuconazole in soybean by gas chromatography. [ Method] After samples went extracted by acetone, cleaned up with petroleum ether by liquid-liquid partition and Florisil siliceous earth chromatography column, they were determined by gas chromatography with nitrogen-phosphorus detection (NPD). [ Result ] Average recoveries of tebuconazole in soybean and plant were 90.7％ - 105.3％ and 93.2％ - 100.6％ respectively under the spiking level of 0.02 - 1.00 mg/kg, and the corresponding relative standard deviations were 2.1％ -8.9％ and 1.7％ -4.6％, respectively. The lowest detection limit of instrument for tebuconazole was 1 × 10-10 g, and the limit od quantitation was 0.01 mg/kg. [ Conclusion] The method is sample sensitive and accurate, furthermore its sensitivity, precision and detection limit meet the requirement of pesticide residue analysis.
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