【摘要】 <正> 近十多年来,国外已广泛开展了湖泊、江湾、海岸、潮间带、海洋、深海钻探等沉积物中脂肪酸的研究。P. A.克兰韦尔(Cranwell)对湖泊沉积物中脂肪酸分布进行了广泛的研究。E. S.范伍利特(Van-Vleet)研究了江湾与海岸沉积物中脂肪酸的成岩作用,J. K.沃尔克曼(Volkman)研究过潮间沉积物和海藻中脂肪酸的组成。S. C.布拉塞尔(Brassell)对日本海槽深海钻探沉积物中脂肪酸的含量分布进行过研究。A. M.菲利普(Philip)认为可以从海洋沉积物中脂肪酸的分布特征推断其物质来源是水生的海藻还是陆源的高等植物碎屑。更多还原

【Abstract】 Monocarboxylic acids and dicarboxylic acids in sea-floor sediments of the Jizhou Island and estuarine sediments at the Yangtze River mouth have been examined by using thin layer chromatography and gas chromatography as well as computerized gas chromatography-mass spectrometry.Free and bound fatty acids distributed in the sea-floor sediments show remarkable even/odd predominances except for sample 8138. Monocarboxylic acids show a unimodal distribution, ranging from n-C₁₄ to n-C₃₂ with the maximum at n-C₁₆ while dicarboxylic acids also show a unimodal distribution, ranging from di-C₁₆ to di-C₃₂ with the maximum at di-C₂₄ or di-C₂₈.Evidence from the distribution of fatty acids in the East China Sea sediments indicates that these monocarboxylic acids are probably, derived from algal debris and ,these dicarboxylic acids are derived from terrigenous higher plant detritus.更多还原