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采用顶空进样-气相色谱法测定食用油中的溶剂残留量。通过比较标样与样品在不同极性色谱柱上的表现,结果表明:使用中等极性固定相的色谱柱DB-1701(30m×0.32mm×0.25μm),可以使六号溶剂各组分峰保留时间一致,并且与DMA完全分离。标准曲线相关系数0.9995,最低检出限0.001mg/kg,方法简单、准确。
Headspace injection - gas chromatography for the determination of solvent residues in edible oils. By comparing the performance of the standard sample with that of the sample on different polar columns, the results show that using the column DB-1701 (30m × 0.32mm × 0.25μm) with medium polar stationary phase, Retention time and DMA completely separated. The standard curve correlation coefficient of 0.9995, the minimum detection limit of 0.001mg / kg, the method is simple and accurate.