n.惹烯

The ubiquity of phenanthrene series, chrysene series compounds, perylene and retene compounds in the sediment indicated that PAHs mainly came from the terrestrial plants. 在樣品中檢測到角鯊烯，表明這一地區(qū)存在生物甲烷合成和細菌作用，具有生成油氣及天然氣水合物可能性。

The relative reten time andrelative peak area were selected as the assaying fingerprint chroma togram.Established by HPLC-DAD ,6 characteristic peaks were identified. 應用HPLC-DAD技術(shù)建立了沙棗花揮發(fā)油指紋圖譜,以相對保留時間和相對峰面積為指標,確定了6個特征峰。

Keywords Rosin;Catalytic dehydrogenation;Thermal analysis;Retene; 松香;催化脫氫;熱分析;惹烯;

tetrahydro retene 四氫惹烯

n.不連續(xù)性；離散性