【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/M S分析的结果相比,用ASAP/TOF-M S和ESI/TOF-M S从E3-5中检测出更多的含杂原子有机化合物。更多还原

【Abstract】 Shenmu char powder( SCP) was sequentially extracted with petroleum ether,carbon disulfide,dichloromethane,acetone,and methanol in a Soxhlet extractor to obtain extracts 1- 5( E1-5) and final residue. The total extract yield of SCP is1. 76%. All the extracts were characterized with gas chromatograph / mass spectrometer( GC / MS),atmospheric solid analysis probe / time-of-flight mass spectrometer( ASAP / TOF-MS),and electrospray ionization / time-of-flight mass spectrometer( ESI /TOF-MS). Normal alkanes with C15 to C24and arenes with 3 and 4 rings are predominant in E1 and E2,respectively,while more heteroatom-containing organic species were identified in E3-5. Organooxygen compounds are the most abundant in E4 and E5based on analysis with GC / MS. Much more heteroatom-containing organic compounds were detected in E3-5with ASAP / TOF-MS and ESI / TOF-MS than with GC / MS.更多还原