色谱

色谱

• 研究论文 • 上一篇    下一篇

全二维气相色谱用于轻质石油馏分中芳烃含量的测定

李艳艳   

  1. Analysis Center of Guangzhou Company, China Petroleum &Chemical Corporation, Guangzhou 510726,
    China

  • 收稿日期:2006-02-21 修回日期:2006-05-08 出版日期:2006-07-30 发布日期:1986-12-25
  • 通讯作者: 李艳艳

Determination of Aromatics in Light Petroleum Products by Comprehensive Two-Dimensional Gas
Chromatography

Li Yanyan   

  1. Analysis Center of Guangzhou Company, China Petroleum &Chemical Corporation, Guangzhou 510726,
    China

  • Received:2006-02-21 Revised:2006-05-08 Online:2006-07-30 Published:1986-12-25
  • Contact: Li Yanyan

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摘要：

建立了采用全二维气相色谱(GC×GC)技术一次进样完成轻质石油馏分中非芳烃、一环芳烃和二环芳烃的分离、定性
和定量。通过对柱系统的选择和色谱条件的优化,实现了一次全二维气相色谱分析即完成轻质石油馏分的族组成分离以及
目标化合物的分离。方法的加标回收率为89.5%～106.1%;样品中各组分含量重复测定的相对标准偏差均不大于5.8%,能
够满足样品测定的精密度和准确性要求，且完成1次分析最多只需要30 min。

关键词: 芳烃, 萘系物, 喷气燃料油, 全二维气相色谱, 溶剂油

Abstract:

In recent years, comprehensive two-dimensional gas chromatography （GC×GC） have been
used widely, and the applications of this technique to many fields have already been reported. In
the standard method of oil analysis, the concentrations of aromatics and naphthalene hydrocarbons in
light petroleum products must be detected by more than two methods. Mono-aromatics, di-aromatics
etc. in light petroleum products were detected only by comprehensive two-dimensional gas
chromatography. After the proper selection of column system and optimization of chromatographic
conditions, the method can achieve the group separations of paraffins, olefins, naphthenes,
aromatics with 1 to 2 rings and some target components in light petroleum products with good
reproducibility and good precision. The recoveries of standard compounds were 89.5%-106.1%, and the
relative standard deviations of repeatedly detecting the components were all lower than 5.8%. It
took only 30 min to finish a determination.

Key words: aromatics, jet fuel, naphthalene
hydrocarbons, solvent oil , comprehensive two-dimensional gas chromatography （GC×GC）