| 直馏柴油中硫化物甲基锍盐合成及电喷雾-高分辨质谱分析 |
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| 引用本文： | 潘娜,史权,徐春明,刘鹏,张亚和,何俊辉,赵锁奇.直馏柴油中硫化物甲基锍盐合成及电喷雾-高分辨质谱分析[J].分析化学,2010,38(3). |
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| 作者姓名： | 潘娜 史权 徐春明 刘鹏 张亚和 何俊辉 赵锁奇 |
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| 作者单位： | 中国石油大学重质油国家重点实验室,北京,102200 |
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| 基金项目： | “973”基金(No.2004CB217801)资助项目 |
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| 摘 要： | 在四氟硼酸银的催化作用下,以碘甲烷对直馏柴油进行甲基衍生化反应,使其中的有机硫化物转变成极性较强的锍盐,再用电喷雾-傅立叶变换离子回旋共振质谱仪进行检测。结合气相色谱-脉冲火焰光度检测器(GC-PFPD)分析,研究不同类型的硫化物甲基衍生化反应的选择性和转化率。结果表明:柴油中硫化物在室温条件下容易与碘甲烷发生甲基化反应,大部分硫化物转化为锍盐,总转化率超过80%,苯并噻吩类比二苯并噻吩类更易发生甲基衍生化反应,转化率也相应较高。烷基二苯并噻吩不同取代位异构体间反应选择性存在较大差异,高分辨质谱分析结果表明,直馏柴油中存在环状硫醚类化合物。
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| 关 键 词： | 柴油 硫化物 甲基衍生化 电喷雾 离子回旋共振 质谱 |
Synthesis and Characterization of Methylsulfonium Salt in Diesel Fraction Using Electrospray Ionization Fourier Transform Ion Cyclotron Resonance Mass Spectrometry |
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| PAN Na,SHI Quan,XU Chun-Ming,LIU Peng,ZHANG Ya-He,HE Jun-Hui,ZHAO Suo-Qi.Synthesis and Characterization of Methylsulfonium Salt in Diesel Fraction Using Electrospray Ionization Fourier Transform Ion Cyclotron Resonance Mass Spectrometry[J].Chinese Journal of Analytical Chemistry,2010,38(3). |
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| Authors: | PAN Na SHI Quan XU Chun-Ming LIU Peng ZHANG Ya-He HE Jun-Hui ZHAO Suo-Qi |
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| Institution: | State Key Laboratory of Heavy Oil Processing;China University of Petroleum;Beijing 102200 |
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| Abstract: | Sulfur compounds in the diesel were selectively derived into methylsulfonium salts by reacting with iodomethane in the presence of silver tetrafluoroborate,and characterized by positive-ion electrospray ionization ( ESI) fourier transform ion cyclotron resonance ( FT-ICR MS) . The conversion ratios and react selectivities of the methylation for various sulfur compounds were investigated by gas chromatograph coupled with pulse flame photometric detector ( GC-PFPD) . Result shows that the sulfur compounds in ... |
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| Keywords: | Diesel Sulfur compounds Methylsulfonium Electrospray ionization Fourier transform-ion cyclotron resonance Mass spectrometry |
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