【摘 要】
：
依次用石油醚、CS2、CH2Cl2、丙酮和甲醇在索氏萃取器中萃取了神木半焦粉末,得到了五级萃取物(E1-5)和最终的萃余物,总萃取率为1.76％.分别用气相色谱/质谱联用仪(GC/MS)、大气
【机 构】
：
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
【基金项目】
：
The project was supported by the National Natural Science Foundation of China;the Research and Innovation Project for College Graduates of Jiangsu Province
论文部分内容阅读
依次用石油醚、CS2、CH2Cl2、丙酮和甲醇在索氏萃取器中萃取了神木半焦粉末,得到了五级萃取物(E1-5)和最终的萃余物,总萃取率为1.76％.分别用气相色谱/质谱联用仪(GC/MS)、大气压固体探针/飞行时间质谱仪(ASAP/TOF-MS)和电喷雾电离/飞行时间质谱仪(ESI/TOF-MS)分析了各级萃取物.用GC/MS分析的结果表明,在E1中C15-24的直链烷烃和E2中3与4环的芳烃比较丰富,在E3-5中含杂原子有机化合物较丰富,特别是E4和E5中含氧有机化合物的含量最高.与用GC/MS分析的结果相比,用ASAP/TOF-MS和ESI/TOF-MS从E3-5中检测出更多的含杂原子有机化合物.
其他文献
Agriculture is still the biggest contributor of non-point source (NPS) pollution to water bodies andrunoff discharges of nutrients and other chemicals are one o
A Chinese fir forest (Cunninghamia lanceolata, CF) and an evergreen broadleaved forest (EB) located inFujian Province, southeastern China, were examined followi
Based on miniaturized components’ characteristics, the method of assembling miniaturized gear and shaft together with corresponding calculating model of the in
The increase of phosphorus concentration is a crucial factor causing the eutrophication of water body,while land use has an important impact on agricultural non
Objective To labele MESPU35, a embryonic stem (ES) cell line derived from C57BL/6j mouse, with enhanced green fluorescent protein (EGFP) for further applicatio
The effects of fenofibrate on plasminogen activator inhibitor-1 (PAI-1) expression in human umbilical endothelial cell-derived transformed cell line-ECV 304 cel
A number of investigations into application of polymers for macro-morphological modification of tool surface have been carried out. These researches, with exten
目的:介绍我院洁净手术室的布局、使用及管理.方法:规范化使用空调净化系统,严格人流、物流、清洁卫生的管理.结果:洁净手术室每月检测都通过了国家卫生标准,对提高手术成功
New Zealand is highly dependent on its soil resource for continued agricultural production. To avoiddepleting this resource, there is a need to identify soils a
财务信息化建设是企业财务管理的革新，随着网络、通信技术的发展和企业对现代化计算机手段的广泛应用，我国企业财务管理推行信息化建设具备了基本条件。财务管理信息化改变了企