n.萜烷

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. 從長20井低熟原油中檢測到了一定量的28，30二降藿烷，這說明源巖形成于極度厭氧的環(huán)境。

The biomarker of steran,terpane,aromatic and adamantanewere detected by thls method from any kind of natural gas, and the gas-biomarkerapplication was approached. 從各類天然氣中檢測出甾萜烷、芳烴和金剛烷等一系列生物標(biāo)志化合物，并進(jìn)行了天然氣生標(biāo)的應(yīng)用研究探索。

The composition of regular sterane suggests the different times, while distribution pattern of tricyclic terpane and abundance of diahopanes indicate the discrepancies of sedimentary environments. 據(jù)此，初步將這些參數(shù)應(yīng)用于兩方面研究，一是為劃分地層沉積環(huán)境提供“生物標(biāo)志物相標(biāo)志”，二是研究油源對比，取得良好效果。

Through comparing experiments, it was found that this method has special dominance in checking trace biomarkers and in determining nature and fixing quantity of a complex sterane and terpane. 色譜-質(zhì)譜-質(zhì)譜由于是兩級質(zhì)譜串聯(lián)比色譜-質(zhì)譜增加了選擇性,有了更強(qiáng)的分離能力,提高了對復(fù)雜混合物如甾、萜類化合物定性和定量的可靠性。

Keywords Kashan Block;terpane;sterane;isoprenoidies;oil-gas migration; 卡山區(qū)塊;萜烷;甾烷;類異戊二烯;油氣運移;

n.床單；床罩