摘要
对食用植物油中的溶剂残留测定方法进行了改进。用样品作基体配制标准溶液,采用顶空进样气相色谱测定,标准加入法定量。方法线性范围在0μg/g-200μg/g,检测低限1.0μg/g,在1.0μg/g^200μg/g浓度范围内,标准添加回收率为87.8%一107.4%,相对标准偏差6.06%~11.8%。本方法采用标准加入法进行定量,样品和标准的基体一致,避免了基体的影响,该法简便、快速,适合食用植物油中的溶剂残留的分析。
An improved method for determination of solvent residues in edible vegetable oils was estabilished. Standard solution was prepared with the sample, solvent residues were analyzed by headspace sample gas chromatography and quantified by standard adding method. The linear range was from 0 and 200 ,μg/g with detection limit of 1.0μg/g. The recovery was from 87.8% - 107. 4% and RSD was from 6.06% - 11.8%. The method is easier, faster, has avoided the substrate influence and used for deterruination of solvent residues in edible vegetable oils.
出处
《江西化工》
2006年第4期166-168,共3页
Jiangxi Chemical Industry
关键词
食用植物油
溶剂残留
顶空气相色谱
edible vegetable oils solvent residues headspace sample gas chromatography
