准东次烟煤中长链烷醛的富集与分析

丛兴顺; 宗志敏; 周音; 李敏; 赵云鹏; 樊星; 魏贤勇

准东次烟煤中长链烷醛的富集与分析

1.
中国矿业大学煤炭加工与高效洁净利用教育部重点实验室, 江苏徐州 221116;
2.
枣庄学院化学系, 山东枣庄 277160

基金项目: National Basic Research Program of China (973 Program, 2011CB201302); the Key Project of Natural Science Foundation of China (20936007); the Fund from Natural Science Foundation of China for Innovative Research Group (51221462); the Key Project of Coal Joint Fund from Natural Science Foundation of China and Shenhua Group Corporation Limited (51134021); The Strategic Chinese-Japanese Joint Research Program (2013DFG60060); National Natural Science Foundation of China (51074153); National Natural Science Foundation of China for Young Researchers (21206187 and 21206188); the Priority Academic Program Development of Jiangsu Higher Education Institutions.

详细信息

中图分类号: TQ533.6
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出版历程
- 收稿日期: 2013-11-11
- 修回日期: 2014-01-03
- 刊出日期: 2014-03-31

Enrichment and analysis of long-chain normal alkanals from Zhundong subbituminous coal

1.
Key Laboratory of Coal Processing and Efficient Utilization (Ministry of Education), China University of Mining & Technology, Xuzhou 221116, China;
2.
Department of Chemistry, Zaozhuang University, Zaozhuang 277160, China

Funds: National Basic Research Program of China (973 Program, 2011CB201302); the Key Project of Natural Science Foundation of China (20936007); the Fund from Natural Science Foundation of China for Innovative Research Group (51221462); the Key Project of Coal Joint Fund from Natural Science Foundation of China and Shenhua Group Corporation Limited (51134021); The Strategic Chinese-Japanese Joint Research Program (2013DFG60060); National Natural Science Foundation of China (51074153); National Natural Science Foundation of China for Young Researchers (21206187 and 21206188); the Priority Academic Program Development of Jiangsu Higher Education Institutions.

摘要

摘要: 用等体积的二硫化碳（CDS）与丙酮的混合溶剂萃取了准东次烟煤得到可溶物，然后依次用石油醚（PE）和CDS萃取该可溶物为PE萃取物（E₁）和CDS萃取物（E₂）。在硅胶层析柱中依次用PE和30%的CDS/PE对E₂进行洗脱，富集了长链烷醛（LCNAs，C_18~27）并用气相色谱/质谱联用仪分析了LCNAs。分级萃取和柱层析提供了从中低阶煤中富集LCNAs的有效方法。LCNAs可能是煤中重要的生物标志物。
- 长链烷醛 /
- 准东次烟煤 /
- 分级萃取 /
- 柱层析
Abstract: Zhundong subbituminous coal was exhaustively extracted with isometric carbon disulfide (CDS) and acetone mixed solvent. The extract was fractionated with petroleum ether (PE) and CDS into PE-extractable portion (E₁) and CDS-extractable portion (E₂). E₂ was sequentially eluted with PE and 30% CDS/PE mixed solvent through a silica gel-packed column. A series of long-chain normal alkanals (LCNAs, C_18~27) were enriched from E₂ and identified with a gas chromatography/mass spectrometer. The fractional extraction and subsequent column chromatography provide an effective approach for enriching LCNAs from middle-and low-rank coals. LCNAs could be a class of important biomarkers.
- long-chain normal alkanals /
- Zhundong subbituminous coal /
- fractional extraction /
- column chromatography

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