• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Conference on Materials Engineering and Science >Evaluating the supercritical extraction effects on the chemical compositions of the extracted oil using GC/TOF MS
【24h】

Evaluating the supercritical extraction effects on the chemical compositions of the extracted oil using GC/TOF MS

机译：使用GC / TOF MS评估提取油化学成分的超临界提取效应

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Gas chromatography time of flight mass spectrometry (GCTOFMS) is becoming an attractive and alternative full-spectrum technique against others traditional instruments. In this study, the GCTOFMS was used to evaluate the effect of supercritical temperature and pressure on the chemical composition of the extraction yields. A total of 12 samples obtained from 3x4 general factorial design were analyzed for it chemical components using GCTOFMS. A list of compounds was identified and matched to the NIST library with a hit over 80 % on the basis of the specific mass determination of their molecular ions and their major fragments. All the overlaps peaks were separated. All the extracted oils possess similar chemical components but varied in each compound concentration. Moreover, the aromatic ethers group was identified as the main group in the supercritical extracts with the presence of Myristicin as the highest peak, whereas, in the soxhlet extraction this group concentration was found lower. This result reveals the great effect of the extraction condition and the used method on the chemical compositions of the extraction yield and the concentration of each compound. This finding indicates and confirms the potential use of supercritical extraction in producing richer extract and fractions.
机译：飞行空气色谱时间质谱（GCTOFMS）正在成为针对其他传统仪器的吸引力和替代的全谱技术。在该研究中，GCTOFMS用于评估超临界温度和压力对提取产率的化学成分的影响。使用GCTOFMS分析了从3×4总因子设计中获得的12个样品。鉴定了化合物列表并与NIST文库匹配，基于其分子离子及其主要碎片的特异性质量测定，达到80％以上。分离所有重叠峰。所有提取的油具有相似的化学成分，但在每个化合物浓度中变化。此外，芳族醚基团被鉴定为超临界提取物中的主要组，其中存在肌钙素作为最高峰，而在索氏提取中，该群体浓度较低。该结果揭示了提取条件和使用方法对萃取产率的化学成分和每种化合物的浓度的影响。该发现表明并证实了超临界提取在产生更丰富的提取物和级分中的潜在使用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号