Characterization of Dissolved Organic Matter in Seawater by Ultrafiltration and Major Biochemical Analysis

通过超滤和主要生化分析表征海水中溶解的有机物

• 批准号: 9102150
• 负责人: John Hedges
• 金额: $ 21.19万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-05-15 至 1994-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9102150&HistoricalAwards=false
• 关键词: Characterization; Dissolved; Organic; Matter; Seawater

Studies will be made of the composition of Dissolved Organic Mater (DOM) in seawater using ultrafiltration as a means of isolating a larger, less altered, and more representative fraction than has been possible with hydrophobic adsorption techniques. The DOM isolates will be characterized by CP/MAS 13CNMR and analyses of elemental and major biochemical composition, which together should give a comprehensive assessment of their major structural features. Selected additional experiments will be carried out to elucidate the biological sources, environmental reactivities and analytical accountability of this material.

将研究海水中溶解有机物质（DOM）的组成，使用超滤作为分离比疏水吸附技术更大、更少变化、更有代表性的部分的手段。DOM分离物将通过CP/MAS 13CNMR以及元素和主要生化成分分析进行表征，这些综合起来将对其主要结构特征进行全面评估。将进行选择性的附加实验，以阐明这种材料的生物来源、环境反应性和分析责任。