Characterization of alkenes in diesel by solid phase extraction and gas chromatography field ionization time of flight high-resolution mass spectrometry

被引：0
|
作者：
Xu Y. [1 ]
Zhu X. [1 ]
Liu Z. [1 ]
Tian S. [1 ]
机构：
[1] Research Institute of Petroleum Processing, SINOPEC
来源：
Shiyou Xuebao, Shiyou Jiagong/Acta Petrolei Sinica (Petroleum Processing Section) | 2010年 / 26卷 / 03期
关键词：
Alkenes; Carbon number distribution; Diesel; Field ionization; Gas chromatography/time of flight mass spectrometry(GC/TOF MS); Solid phase extraction;
D O I：
10.3969/j.issn.1001-8719.2010.03.020
中图分类号：
学科分类号：
摘要：
A new method for characterization of alkenes in diesel was developed. Diesel sample was separated into paraffins and mixtures of aromatics and alkenes by Ag-SiO2 solid phase extraction. The effect of separation was verified by GC/MS and 1H-NMR. The content and carbon number distribution of alkenes in mixture of aromatics and alkenes were then determined by gas chromatography/field ionization-time of flight mass spectrometry (GC/FI-TOF MS). Soft ionization source of FI was used to generate unique molecular ions, the high resolution TOF MS could determine the accurate mass of the compound, so the distribution of type and carbon number for alkenes could be obtained quickly and exactly by the accurate mass and the relative abundance of their molecular ions.
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页码：431 / 436
页数：5
相关论文
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