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| DMCHA提取油脂中溶剂残留量的气相色谱分析研究 |
| Gas chromatography analysis of residual solvent in DMCHA extracted oil |
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| DOI： |
| 中文关键词: 麻疯树籽油 DMCHA 转极性溶剂 残留量 气相色谱 |
| 英文关键词:Jatropha curcas L. seed oil DMCHA switchable polarity solvent residual content gas chromatography |
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| 中文摘要: |
| 利用转极性溶剂提取油脂可减少环境污染、降低分离能耗。建立了转极性溶剂 N,N-二甲基环己胺（DMCHA）在提取的麻疯树籽油中残留量的气相色谱分析方法。该方法采用安捷伦GC7890A气相色谱仪，FID检测器，DB-5HT毛细管柱，DMCHA与麻疯树籽油能实现良好分离，分析时间为14.3 min。DMCHA在0.4～2.0 g/L范围内，与峰面积存在良好的线性相关性，相关性系数为0.993，精密度实验中相对标准偏差为3.87%，加标回收率在99.18%～104.02%之间。该方法能够快速准确测定DMCHA提取的麻疯树籽油中溶剂残留量。 |
| 英文摘要: |
| Using switchable polarity solvents to extract oil can reduce environmental pollution and separation energy. N, N-dimethyl cyclohexylamine (DMCHA), as a typical switchable solvent, was used to extract Jatropha curcasL. seed oil. The gas chromatography analysis method for analyzing the residual solvent in Jatropha curcas L. seed oil was established. The DMCHA content was determined by Agilent GC7890 gas chromatography equipped with a flame ionization detector and a capillary column DB-5HT. The results showed that the residual DMCHA in Jatropha curcasL. seed oil could be well separated from the oil and the analysis time was 14.3 min. The DMCHA content had good linear relationship with its peak area in the range of 0.4-2.0 g/L(R2=0.993). The relative standard deviation in the precision experiment and the recovery of standard addition were 3.87% and 99.18%-104.02%,respectively. This method could be used to rapidly and accurately determine the residual solvent in Jatropha curcas L. seed oil extracted by DMCHA. |
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