Fatty alcohols and sterol in the continental mangin sediments off northeastern Taiwan.

貢獻的翻譯標題: 臺灣東北方大陸邊緣沉積物中之脂肪醇與固醇

Woei Lih Jeng, Bor-Cheng Han

研究成果: 雜誌貢獻文章

摘要

本文分析取自臺灣東北外海四個箱型沉積物中可萃取與固結之脂肪醇與固醇,可萃取與固結脂肪醇含量之平均比值為3:1,沉積物中可萃取與固結固醇之濃度大約相等;脂肪醇分佈範圍自C14至C32極大值在C22,並且高分子量部份佔有優勢比例;在C22-C30間偶奇碳優指數值在可萃取相與固結相平均值分別為9.9與8.3反映出優勢的陸源輸入;葉綠素醇僅存在於固結相中,顯示可能之來源物質在沉積當時或之前有快速的轉變;沉積固醇所含植物固醇高過浮游植物固醇;一般而言,飽和與不飽和固醇之比值偏低暗示為氧化環境;第14測站可萃取固醇總量為其他三個測站平均值之三倍。
原文英語
頁(從 - 到)65-72
頁數8
期刊Acta Oceanographica Taiwanica
31
出版狀態已發佈 - 九月 1993

指紋

sterol
alcohol
sediment
sediment core
phytoplankton
carbon
station

引用此文

Fatty alcohols and sterol in the continental mangin sediments off northeastern Taiwan. / Jeng, Woei Lih; Han, Bor-Cheng.

於: Acta Oceanographica Taiwanica, 卷 31, 09.1993, p. 65-72.

研究成果: 雜誌貢獻文章

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abstract = "Four box-core sediment samples from off northeastern Taiwan have been analyzed for extractable and bound fatty alcohols and sterols. The average ratio of extractable to bound fatty alcohols is 3:1. Extractable and bound sterols have approximately equal concentrations in sediments. Fatty alcohol distribution ranges from C14 to C32 maximizing at C22. The high molecular weight fraction (≥C22) has predominant proportions, and even-odd carbon preference index values in the range of C22-C30 average 9.9 and 8.3 for the extractable and bound phases, respectively, reflecting a predominant terrestrial input. Phytol has been found exclusively in the bound phase, indicating that rapid transformations are occurring on or prior to deposition of the likely source materials. Sedimentary sterols contain higher phytosterols than phytoplankton sterols. In general, the stanol/stenol ratios are low, suggesting an oxidizing environment. Station 14 has a concentration of total extractable sterols about 3 times the average of the other three stations.",
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