气相色谱-场电离飞行时间质谱测定中间馏分油中链烷烃的形态分布

引用本文: 蒋婧婕, 刘颖荣, 刘泽龙, 田松柏. 气相色谱-场电离飞行时间质谱测定中间馏分油中链烷烃的形态分布[J]. 分析化学, 2016, 44(3): 416-422. doi: 10.11895/j.issn.0253-3820.150772 shu

Citation: JIANG Jing-Jie, LIU Ying-Rong, LIU Ze-Long, TIAN Song-Bai. Paraffins Species Distribution Analysis in Petroleum Middle Fractions by GC Field Ionization Time-of-Flight Mass Spectrometry[J]. Chinese Journal of Analytical Chemistry, 2016, 44(3): 416-422. doi: 10.11895/j.issn.0253-3820.150772 shu

气相色谱-场电离飞行时间质谱测定中间馏分油中链烷烃的形态分布

1.
中国石化石油化工科学研究院, 北京 100083

通讯作者: 刘泽龙

基金项目:
本文系国家重点基础研究发展计划"973"资助项目(No.2012CB224801)资助 (No.2012CB224801)

摘要: 利用气相色谱-场电离飞行时间质谱技术(GC-FI TOF MS)建立了中间馏分油中不同异构程度链烷烃的碳数分布表征方法。首先利用GC-FI TOF MS技术对不同异构程度的链烷烃进行分离、鉴别,然后建立了中间馏分油沸点范围内正构烷烃、异构烷烃在GC-FI TOF MS测定时的相对响应因子算法及不同异构程度链烷烃的碳数分布算法,最后考察此定量方法的精密度和准确度。结果表明,GC-FI TOF MS可以将同碳数链烷烃区分为异构程度不同的3部分:多取代基异构烷烃、单取代基异构烷烃和正构烷烃;可利用GC-FI TOF MS对异构程度不同的链烷烃进行定量分析,精密度较好,相对偏差小于15%。此方法无需进行样品预分离,可直接进样分析,缩短了分析时间,且首次提供了不同异构程度异构烷烃的碳数分布信息。

关键词:

English

Paraffins Species Distribution Analysis in Petroleum Middle Fractions by GC Field Ionization Time-of-Flight Mass Spectrometry

1.
Sinopec Research Institute of Petroleum Processing, Beijing 100083, China

Corresponding author: 刘泽龙

Received Date: 30 September 2015
Fund Project:
本文系国家重点基础研究发展计划"973"资助项目(No.2012CB224801)资助

Abstract: A gas chromalography field ionization time-of-flight mass spectrometric (GC-FI TOF MS) technology was used to characterize the carbon number distribution of paraffins with different levels of isomerization in petroleum middle fractions. Firstly, with GC-FI TOF MS, the paraffins with different levels of isomerization were identified. Secondly, the relative response factors of normal paraffins and iso-paraffins were determined and their quantitative analysis methods were established. Finally, the accuracy and precision of the method were examined. The results indicated that paraffins with the same carbon number could be divided into poly-substituted iso-paraffins, mono-substituted iso-paraffins and normal paraffins by GC-FI TOF MS. The quantitation of paraffins with different levels of isomerization could be obtained. The accuracy and precision were acceptable. The sample pre-separation was not required which greatly shortened the analysis time. The analysis provides the information for the carbon number distribution of iso-paraffins with different levels of isomerization.

Key words:

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

气相色谱-场电离飞行时间质谱测定中间馏分油中链烷烃的形态分布

通讯作者: 刘泽龙

English

Paraffins Species Distribution Analysis in Petroleum Middle Fractions by GC Field Ionization Time-of-Flight Mass Spectrometry

Corresponding author: 刘泽龙

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

气相色谱-场电离飞行时间质谱测定中间馏分油中链烷烃的形态分布

通讯作者: 刘泽龙

English

Paraffins Species Distribution Analysis in Petroleum Middle Fractions by GC Field Ionization Time-of-Flight Mass Spectrometry

Corresponding author: 刘泽龙

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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通讯作者: 陈斌, bchen63@163.com

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