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

将研究海水中溶解有机物质(DOM)的组成，使用超滤作为一种手段，分离出比疏水吸附技术更大、更少变化和更具代表性的组分。DOM分离株将通过CP/MAS 13CNMR以及元素和主要生化成分的分析来表征，这些分析应该能够全面评估它们的主要结构特征。将进行选定的额外实验，以阐明这种材料的生物来源、环境反应性和分析责任。

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.