章晴, 陈士恒, 高丁, 史晓梅, 杨永坛. 顶空-气相色谱法测定食用植物油中溶剂残留的方法研究[J]. 分析测试技术与仪器, 2015, (4): 225-230.
引用本文: 章晴, 陈士恒, 高丁, 史晓梅, 杨永坛. 顶空-气相色谱法测定食用植物油中溶剂残留的方法研究[J]. 分析测试技术与仪器, 2015, (4): 225-230.
ZHANG Qing, CHEN Shi-heng, GAO Ding, SHI Xiao-mei, YANG Yong-tan. Study on Determination of Residual Solvent in Edible Vegetable Oils by Headspace-Gas Chromatography[J]. Analysis and Testing Technology and Instruments, 2015, (4): 225-230.
Citation: ZHANG Qing, CHEN Shi-heng, GAO Ding, SHI Xiao-mei, YANG Yong-tan. Study on Determination of Residual Solvent in Edible Vegetable Oils by Headspace-Gas Chromatography[J]. Analysis and Testing Technology and Instruments, 2015, (4): 225-230.

顶空-气相色谱法测定食用植物油中溶剂残留的方法研究

Study on Determination of Residual Solvent in Edible Vegetable Oils by Headspace-Gas Chromatography

  • 摘要: 建立顶空-气相色谱法测定食用植物油中六号溶剂残留量的分析方法.通过优化顶空进样器的平衡温度和平衡时间,使六号溶剂的主要组分完全分离,采用外标法进行定量.在2.0~100.0 mg/kg质量分数范围内,线性关系良好.在低、中、高3个加标水平下,平均回收率是98.2%~99.2%,相对标准偏差是小于2%.方法简便、准确,适合于食用植物油中六号溶剂残留量的测定.

     

    Abstract: A method to determine the residual solvent in edible vegetable oils using headspace-gas chromatography is established. The main components of solvent No.6 were separated completely under the optimized equilibrium temperature and equilibrium time conditions of the headspace auto-sampler.The amount was quantified by an external standard method. The linear relationship was satisfied from 2.0 to 100.0 mg/kg. The average spiked recoveries at three levels were in the range of 98.2%~99.2% and the relative standard deviations(n=6) were less than 2%.With features such as simpleness and accuracy, this method is suitable for the determination of residual solvent in edible vegetable oils.

     

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