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题名: Column switching-back flushing technique for the analysis of aromatic compounds in gasoline
作者: Wang, HW;  Xu, H;  Guan, YF
关键词: column switching ;  gasoline ;  instrumentation ;  hydrocarbons ;  aromatic
刊名: JOURNAL OF CHROMATOGRAPHY A
发表日期: 2002-10-04
卷: 972, 期:2, 页:253-258
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Life Sciences & Biomedicine ;  Physical Sciences
类目[WOS]: Biochemical Research Methods ;  Chemistry, Analytical
研究领域[WOS]: Biochemistry & Molecular Biology ;  Chemistry
英文摘要: A simple method, based on the technique of capillary column switching-back flushing, has been developed for the detailed analysis of aromatic compounds in gasoline. The sample was first separated on a 30-m long OV-2330 polar precolumn and then backflushed onto a nonpolar analytical column. The early eluting components from the precolumn and the components of interest (aromatic compounds plus heavier compounds) eluting from the analytical column are all directed to the same flame ionization detection system through a T piece, which permits the quantitative analysis of aromatic hydrocarbons in gasoline by a normalization method using correcting factors. The switching time window of the method is +/-5 s, resulting in easier operation and higher reliability. The reproducibility of the quantitative analysis was less than or equal to3% RSD for real gasoline samples. (C) 2002 Elsevier Science B.V. All rights reserved.
关键词[WOS]: CHROMATOGRAPHIC PNA ANALYSIS ;  HYDROCARBON-TYPE SAMPLES ;  GAS-CHROMATOGRAPHY
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000178367700011
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/91443
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dept Analyt Chem & Micro Instrumentat, Dalian 116012, Peoples R China

Recommended Citation:
Wang, HW,Xu, H,Guan, YF. Column switching-back flushing technique for the analysis of aromatic compounds in gasoline[J]. JOURNAL OF CHROMATOGRAPHY A,2002,972(2):253-258.
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