童亭亮煤索氏萃取和超声萃取的GC/MS分析  

GC/MS Analysis of Clarain from Tongting Bituminous Coal Extracted Using Soxhlet Extraction and Ultrasonic Extraction

作　　者：华宗琪[1] 秦志宏[1] 陈德仁[1] 闫玉杰[1] 戴冬瑾[1] 

机构地区：[1]中国矿业大学化工学院,江苏徐州221116

出　　处：《广州化工》2011年第10期1-4,35,共5页GuangZhou Chemical Industry

基　　金：国家自然科学基金(50874108);国家自然科学基金委员会创新研究群体科学基金(50921002);中央高校基本科研业务费专项资金(2010LKHX01);煤炭加工与高效洁净利用教育部重点实验室开放基金(CPEUKF08-06)

摘　　要：采用CS2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。Clarain from Tongting bituminous coal was extracted with CS2 using soxhlet extraction and ultrasonic extraction,and then the extracts were analyzed with GC/MS.The results indicated that the soxhlet and ultrasonic extracts from clarain composed with normal alkanes and aromatic,and branched alkanes and heteroatomic compounds were also detected in the ultrasonic extracts.Along with the increase of ultrasonic extraction time,the variety of detected substances was more,and the structure was more complex too.Impact flow generated by ultrasonic cavitation accelerated the mass transfer rate of solvent and the matrix,and as a result,some compounds which could not be extracted by soxhlet extraction were able to be released by ultrasonic extraction in short time.

关 键 词：煤 索氏萃取 超声萃取 GC/MS 

分 类 号：TQ028.32[化学工程]