Determination of sulfides and thiols in petroleum distillates using solid-phase extraction and derivatization with pentafluorobenzoyl chloride

被引：16
|
作者：
Thomson, JS
Green, JB
McWilliams, TB
机构：
[1] BDM-Petroleum Technologies, Bartlesville, OK 74005
来源：
ENERGY & FUELS | 1997年 / 11卷 / 04期
关键词：
D O I：
10.1021/ef960165m
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
An improved method for differentiating sulfides, thiophenes, and thiols in petroleum distillates is presented. Thiophenes are separated from sulfides and thiols via solid-phase extraction. Reaction with pentafluorobenzoyl chloride is employed to form thiol esters, while sulfides do not react. Thiol elution times increase sufficiently after derivatization to provide separation from sulfides during gas chromatographic analysis. In addition, electron impact mass spectra of derivatized thiols exhibit an intense, characteristic 195 fragment ion, which aids in their identification.
引用
收藏
页码：909 / 914
页数：6
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