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Capillary gas chromatographic column switching-backflushing technique for the analysis of aromatics in aviation kerosene by normalization method
Shen, WJ; Wang, HW; Zhao, JH; Wang, ZP; Wang, FY; Guan, YF
关键词Column Switching-backflushing Technique Two-dimensional Gas Chromatography Aviation Kerosene Aromatics Normalization Method
刊名CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
2004-07-01
32期:7页:953-957
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Analytical
研究领域[WOS]Chemistry
关键词[WOS]LIQUID-CHROMATOGRAPHY ; GASOLINE ; MIXTURES
英文摘要The aromatics in aviation kerosene was separated and analyzed by capillary gas chromatography using column switching-backflushing technique. The aromatics having carbon number of n are retained after n-Cn+3 on the FFAP pre-column, and were cut and back flushed after the elution of n-Cn+3, onto a nonpolar analytical column and were separated according to their boiling points. Since the early eluting components from. the pre-column, and the aromatics and heavier saturates from the analytical column are all directed to the same flame ionization detector through a "T" piece, a factor corrected normalization method can be applied for quantitation. The resistance of the resistor after the pre-column is designed 6 times higher than that of analytical column, resulting in 5.4 times higher carrier gas flow rate after backflushing. The chromatographic bands are compressed, enhancing the sensitivity 2 times more for aromatics and heavier saturates. Two aviation kerosene samples were analyzed and the switching time window is more than +/- 18 s. The error of reproducibility of the analysis is less than or equal to4.0%.
语种英语
WOS记录号WOS:000223324000028
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/139298
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116012, Peoples R China
2.Nanjing Univ Sci & Technol, Sch Chem Engn, Nanjing 210094, Peoples R China
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GB/T 7714
Shen, WJ,Wang, HW,Zhao, JH,et al. Capillary gas chromatographic column switching-backflushing technique for the analysis of aromatics in aviation kerosene by normalization method[J]. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,2004,32(7):953-957.
APA Shen, WJ,Wang, HW,Zhao, JH,Wang, ZP,Wang, FY,&Guan, YF.(2004).Capillary gas chromatographic column switching-backflushing technique for the analysis of aromatics in aviation kerosene by normalization method.CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,32(7),953-957.
MLA Shen, WJ,et al."Capillary gas chromatographic column switching-backflushing technique for the analysis of aromatics in aviation kerosene by normalization method".CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 32.7(2004):953-957.
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