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- Keywords Bozhong Sag;biomarker;gammacerane;tetracyclic terpane;origin type of oil; 渤中凹陷;生物標志物;伽馬蠟烷;四環(huán)萜烷;原油成因類(lèi)型;
- Limonoids are a group of highly oxygenated,tetracyclic triterpene secondary metabolites derivatives. 檸檬苦素類(lèi)似物是一類(lèi)高度氧化的四環(huán)三萜類(lèi)植物次生代謝物質(zhì)。
- 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(cháng)20井低熟原油中檢測到了一定量的28，30二降藿烷，這說(shuō)明源巖形成于極度厭氧的環(huán)境。
- Three tetracyclic triterpenoid acids,named ganoderic acids M1,M2,M3,were isolated from the fermentaion products by submerged fermentation of G. 從靈芝深層發(fā)酵產(chǎn)物中分離得到三種四環(huán)三萜酸,命名為靈芝酸M1,M2,M3。
- 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(lèi)天然氣中檢測出甾萜烷、芳烴和金剛烷等一系列生物標志化合物，并進(jìn)行了天然氣生標的應用研究探索。
- Conclusion: The ear points pressing combined with oral tetracycl ine was a good way in freatment of female acne, which can be used in clinic practice. 結論:耳穴按壓法治療痤瘡有良好療效,可能與降低血清睪酮水平有關(guān)。
- Three tetracyclic triterpenoid acids, named ganoderic acids M1, M2, M3, were isolated from the fermentaion products by submerged fermentation of G. lucidum. 從靈芝深層發(fā)酵產(chǎn)物中分離得到三種四環(huán)三萜酸，命名為靈芝酸M1, M2, M3。
- The asphaltene RICO products include n-alkan acids, di-n-alkan acids, branched alkan acids, tricyclic terpan acids, hopanoic acids, steran acids and 4-methyl steran acids. 其RICO產(chǎn)物包括一元酸、二元酸、支鏈酸、三環(huán)萜烷酸、藿烷酸、甾烷酸和4甲基甾烷酸。鍵合在瀝青質(zhì)中的烷基側鏈和生物標志物不易遭受生物降解作用,特別是甾烷與飽和烴中分布相似。
- 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. 據此，初步將這些參數應用于兩方面研究，一是為劃分地層沉積環(huán)境提供“生物標志物相標志”，二是研究油源對比，取得良好效果。
- The invention relates to a pharmaceutical composition with dammarane-type tetracyclic triterpene compound as an active component and an application thereof to the pharmaceutical field. 本發(fā)明涉及達瑪烷型四環(huán)三萜類(lèi)化合物為活性成分的藥物組合物及其在醫藥領(lǐng)域中的應用。
- 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,有了更強的分離能力,提高了對復雜混合物如甾、萜類(lèi)化合物定性和定量的可靠性。
- Tetracyclic antidepressant Tetracy-clics 四環(huán)抗抑郁劑
- diethenoid tetracyclic triterpene alcohol [化] 二烯系四環(huán)三萜烯醇
- Keywords B. javanica;tetracyclic triterpene;quassinoids;bruceine; 鴉膽子;四環(huán)三萜;苦木內酯;苦木素;
- Keywords Kashan Block;terpane;sterane;isoprenoidies;oil-gas migration; 卡山區塊;萜烷;甾烷;類(lèi)異戊二烯;油氣運移;
- The terpane is dominated by penta-triterpanes and long-chain tricycloterpanes; 飽和烴含量高，飽和烴／芳香烴值大于3.;0
- Behavior of sterane and terpane molecular components in PVT fractionation experiment PVT分餾實(shí)驗中甾、萜烷分子的行為
- Keywords Internal standard method;n-alkane;sterane;terpane;biomarker;oil fingerprint;oil spill identification; 內標法;正構烷烴;甾烷;萜烷;生物標志物;油指紋;溢油鑒別;
- Keywords Antibacterial agents;Thiazolothiazine incorporated tetracyclic fluoroquinolone;Synthesis; 抗菌劑;四環(huán)氟喹諾酮;合成;
- Keywords Botryococcus braunii;growing peroid;N-alkane;alkene;bicyclic terpane;GC/MS; 叢粒藻;生長(cháng)時(shí)間;正構烷烴;直鏈烯烴;雙環(huán)萜烷;色質(zhì)研究;
