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GC/MS Analysis of Clarain from Tongting Bituminous Coal Extracted Using Soxhlet Extraction and Ultrasonic Extraction
Author(s): HUA Zong-qi, QIN Zhi-hong, CHEN De-ren, YAN Yu-jie, DAI Dong-jin
Pages: 1-
4,35
Year: 2011
Issue:
10
Journal: Guangzhou Chemical Industry
Keyword: 煤; 索氏萃取; 超声萃取; GC/MS;
Abstract: 采用CS<,2>对童亭亮煤进行索氏萃取和超声萃取,用气相色谱/质谱联用仪(GC/MS)对相关萃取物进行分析,结果表明:童亭亮煤的索氏萃取物由正构烷烃和芳烃构成,而超声萃取物还检测到异构烷烃和各类杂原子化合物,并且随着超声萃取时间的增加,所检测到的物质种类更多结构也更复杂;而超声波的空化效应产生的冲击流能促进溶剂和煤样的传质,使超声波在短时间内能将索氏萃取不能萃取出的化合物释放出来.
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