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胜利褐煤二硫化碳-丙酮萃取物的超临界醇解物的GC/MS分析
  • ISSN号：1000-2367
  • 期刊名称：《河南师范大学学报：自然科学版》
  • 时间：0
  • 分类：TQ536[化学工程—煤化学工程]
  • 作者机构：[1]中国矿业大学化工学院,江苏徐州221116, [2]枣庄学院化学系,山东枣庄277160
  • 相关基金：国家973计划项目（2011CB201302）;国家自然科学基金重点项目（20936007）和国家自然科学基金委员会创新研究群体科学基金（51221462）
作者： 丛兴顺[1,2], 宗志敏[1], 魏贤勇[1]
关键词： 超临界醇解, 胜利褐煤, 气相色谱, 质谱联用分析, 热溶, supercritical alcoholysis , shengli lignite , GC/MS analysis , thermal dissolution
中文摘要：

胜利褐煤经CS2-丙酮混合溶剂（V/V=1∶1）萃取获得萃取物EM,EM在300℃的甲醇中热溶2h获得热溶物ET.对EM和ET进行了气相色谱/质谱联用（GC/MS）分析,在EM中有43种GC/MS可检测组分,而在ET中检测到了132种有机化合物,其中包括32种在EM中未检测到的甲酯类化合物（MAs）和16种酚类化合物.分析了MAs和酚类化合物的形成机理,得出了胜利褐煤CS2-丙酮可溶大分子化合物中可能存在的4种结构单元.本文提供了一种研究煤中可溶大分子化合物的有效方法,弥补了GC/MS在检测大分子化合物时的不足.

英文摘要：

Shengli lignite was extracted with CS2-acetone mixed solvent （1 ： 1 by volume） to obtain CS2- acetone soluble portion （EM）. Thermal dissolution of EM in methanol was carried out at 300 oC for 2 h to offer thermally soluble substance （ET）. Both EM and ET were analyzed by gas chromatography/mass spectrometry （GC/MS）. 43 and 132 organic components were identified by GC/MS in EM and ET respectively. 32 methyl esters （MEs） and 16 phenols are the most abundant compositions in ET,whereas were not detected in EM. Formation mechanisms of MEs and phenols, and 4 possible structure units of soluble macromolecular compounds in EM were put forward based on GC/MS results. An effective method to investigate soluble macromolecular compounds,which are difficult to be detected by GC/MS,was provided in this paper.

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期刊信息
  • 《河南师范大学学报：自然科学版》
  • 北大核心期刊（2011版）
  • 主管单位:河南师范大学
  • 主办单位:河南师范大学
  • 主编：王记录
  • 地址：河南省新乡市建设东路46号
  • 邮编：453007
  • 邮箱：
  • 电话：0373-3329394 3329272
  • 国际标准刊号：ISSN：1000-2367
  • 国内统一刊号：ISSN：41-1109/N
  • 邮发代号:36-55
  • 获奖情况:
  • 国家新闻出版局、国家科委优秀学报奖,河南省科委、河南省教委优秀学报
  • 国内外数据库收录:
  • 美国化学文摘（网络版）,美国数学评论（网络版）,英国农业与生物科学研究中心文摘,德国数学文摘,英国动物学记录,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）
  • 被引量:7535