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. 在样品中检测到角鲨烯，表明这一地区存在生物甲烷合成和细菌作用，具有生成油气及天然气水合物可能性。
The relative reten time andrelative peak area were selected as the assaying fingerprint chroma togram.Established by HPLC-DAD ,6 characteristic peaks were identified. 应用HPLC-DAD技术建立了沙枣花挥发油指纹图谱,以相对保留时间和相对峰面积为指标,确定了6个特征峰。
Keywords Rosin;Catalytic dehydrogenation;Thermal analysis;Retene; 松香;催化脱氢;热分析;惹烯;
tetrahydro retene 四氢惹烯
n.不连续性；离散性
