The results showed that the ratio of isoprenoids pristine and phytane weathered during more than two months and specific value parameters of terpanes and steranes in spilled oils weathered during a year or placed indoors during four years,as the indicators of spilled oils,were found being rarely influenced by weat.
用毛细管GC -MS对不同水环境中不同油类的特种生物标志物进行检测 ,结果表明 ,异戊二烯烷烃类姥鲛烷与植烷的比值在两个多月的风化过程中不受风化的影响 ;萜烷和甾烷的某些比值参数在一年的风化过程中 (或室内自然放置 4年 )不受风化的影响。
A method for analysis n-alkanes,steranes and terpanes in oil by internal standard method was established.
采用内标法建立了原油中正构烷烃、生物标志物(甾、萜烷类)的分析方法。
The crude oils of Chang 20 belong to typical immature oil which have odd even predominance and lower ratios of sterane and terpane maturity index.
长２０井的原油既具有正烷烃奇偶优势，又具有较低甾萜烷异构体比值，属于典型的低熟原油。
The simulation experiments of hydrocarbon expulsion have been conducted at low temperature (150℃) to study the fractionation of steranes and terpanes in coal and mudstone.
利用未混油或混油源岩样品（指在源岩样品中加入一定量石油）进行低温排烃模拟实验，系统研究了煤与泥岩排烃过程中甾、萜烷的色层效应。