植物化石角质层生物标志化合物分析

Analysis on Biomarker of Fossil Plant Cuticles

简要介绍了植物化石角质层生物标志化合物研究方法。采用索氏抽提和超声抽提等方法提取出吉林长白八道沟中新世硅藻土中的植物化石角质层和德国Schrotzburg中新世植物化石角质层的溶解有机质,并进行了气相色谱-质谱(GC-MS)分析等实验。结果表明:有机物中只含有少量的正构烷烃、类异戊二烯烷烃、萜类化合物和甾类化合物;植物化石角质层生物标志化合物的采样和化学处理中应注意避免污染,同时应考虑岩相及岩性。

The method on biomarker study of fossil plant cuticles is briefly introduced. Using the Soxhlet and ultrasound extraction methods, and Gas Chromatography- Mass Spectrometry （GC- MS） analyses, the author made extractions of dissolved organic matter in cuticles of Miocene plants from the Badaogou of Changbai Mountain area of Jilin, China and Schcrozburg of Germany. The results show that there are n-alkanes, isoprenoid alkenes, terpenes and stericles in the organics. It is necessary to pay attention to lithofacies,lithologic characters and avoiding pollution in sampling and processing for the biomarker research on the cuticles.