【摘要】 从颗石藻、球等辫金藻300℃热模拟产物中检测出长侧链正烷基二氢化茚、烷基噻吩类化合物。二氢化茚类化合物碳数分布范围为C13～C25，nC14烷基二氢化茚的相对含量最高。没检测到茚类化合物，说明二氢化茚和茚可以源自不同的先质，生活于咸水环境的低等生物是二氢化茚类化合物的母质之一。在300℃热解产物中检测出以m/z111和125为基峰的两个系列的长侧链烷基噻吩，表明在中—高盐度环境下，藻类将无机硫转化为有机硫的生物化学作用，成为岩石抽提物和原油中的含硫化合物形成的又一途径。更多还原

【Abstract】 Novel long side chain n- alkylindanes and n- alkylthiophoenes were found in 300 ℃ pyrolysates of Isocrysis galbana, Emiliania huxleyi and Gephyrocapsa oceanica. The carbon numbers of indanes range from 13 to 25, with the maximum at C23. No indene was found, clearly showing that indanes and indenes may originate from different precursors, and algae lived in saltwater are important contributors to the indanes. Two novel series of alkylthiophenes, with base peak m/z 111 and 125, respectively, show that biochemistry function of algae, through which inorganic sulphur was transformed into organic sulphur under the condition of high to medium salinity, is another origin of sulphur- bearing organic matter in sediments and petroleums.更多还原