摘要
建立了顶空气相色谱法快速测定植物油中溶剂残留量的方法。采用Rtx-1毛细管柱和氢火焰检测器测定,外标法定量。结果表明在0.00μg^173.00μg范围内,正己烷的峰面积与其含量呈良好的线性关系,相关系数为0.999 3,检出限为1.8 mg/kg,平均加标回收率为73.12%~105.25%,相对标准偏差为2.9%~5.4%(n=5)。该方法简便快速、结果准确、重现性好,适合植物油中溶剂残留量的测定。
An analytical method for fast determination for solvent residue in vegetable oils by headspace gas chromatography was developed. The solvent residue in vegetable oils was separated by Rtx-1 column, and determined by a fire iron detector（ FID ）. The result showed that the linear range was between 0μg -173.00μg and the linear correlation coefcient was 0.999 3. The detection limit was 1.8 mg/kg, and the average recoveries were between 73.12% and 105.25% with the relative standard deviations （RSDs） of 2.9%-5.4% （n=5）. It was proved to be a convenient and accurate method for the analysis of solvent residue in vegetable oils.
出处
《食品工程》
2013年第4期50-52,共3页
Food Engineering
关键词
顶空气相色谱法
溶剂残留量
植物油
headspace gas chromatography
solvent residue
vegetable oils
