CAJ | 학술논문

采用全二维气相色谱/飞行时间质谱分析方法对典型石油样品中饱和烃组分进行了定性分析,依据极性大小和环数多少的分布特征,解析了点阵图谱中的烷烃、单环烷烃、双环烷烃、单金刚烷和双金刚烷系列、三环萜烷类、甾烷类和藿烷类等生物标志化合物的识别;讨论了典型生物标记化合物单金刚烷、三环萜烷和藿烷类的全二维点阵谱图特征;检测到过去GC/MS分析中常被忽视的C_(31)～C_(35)三环萜烷,为石油地质实验和研究提供了参考依据.全二维气相色谱/飞行时间质谱相比于GC/MS灵敏度更高、峰容量更大,适合复杂混合物体系的分析,对石油样品的分析有很好的应用前景.
채용전이유기상색보/비행시간질보분석방법대전형석유양품중포화경조분진행료정성분석,의거겁성대소화배수다소적분포특정,해석료점진도보중적완경、단배완경、쌍배완경、단금강완화쌍금강완계렬、삼배첩완류、치완류화곽완류등생물표지화합물적식별;토론료전형생물표기화합물단금강완、삼배첩완화곽완류적전이유점진보도특정;검측도과거GC/MS분석중상피홀시적C_(31)～C_(35)삼배첩완,위석유지질실험화연구제공료삼고의거.전이유기상색보/비행시간질보상비우GC/MS령민도경고、봉용량경대,괄합복잡혼합물체계적분석,대석유양품적분석유흔호적응용전경.
A method for the analysis of saturated hydrocarbons in crude oil was established by comprehensive two-dimensional gas chromatography coupled to time-of-flight mass spectrometer(GC×GC/TOFMS). All compounds were identified according to their family characteristics and each spectrum. Alkanes, cyclic alkanes, bicyclic alkanes, adamantanes, diamantanes, terpanes, steranes and hopanes are separated into easily recognizable bands in the GC×GC chromatogram. The characteristics of terpanes, hopanes and adamantanes' contour chromatogram are defined. C_(31)-C_(35) tricyclic terpanes were often neglected in the past. Provide petroleum geological experiment workers reference to carry out their work on GC×GC/TOFMS. Compare with the GC/MS, GC×GC/TOFMS has higher sensitivity and bigger peak capacity, which is more suitable for the analysis of complex mixture systems. It will be a helpful tool in the petroleum geological experiment.