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

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：
9102407
负责人：
Ronald Benner
金额：
$26.34万
依托单位：
University of Texas at Austin
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
项目状态：
已结题
起止时间：
1991-05-15 至 1994-10-31
来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9102407&HistoricalAwards=false
关键词：
CharacterizationDissolvedOrganicMatterSeawater

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中文摘要
翻译
将研究海水中溶解有机物(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。
英文摘要
Studies will be made of the composition of Dissolved Organic Matter (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.
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Collaborative research: Does dissolved organic matter influence the concentrations and distributions of trace elements in the Arctic Ocean?
The Microbial Carbon Pump and Bacterial Carbon Sequestration in the Ocean
Collaborative Research: Photodegradation of Dissolved Organic Matter and its Contribution to Surface Water CO2 fluxes and the Carbon Cycle in a River Dominated Ocean Margin
Collaborative Research (ETBC): Climate Warming and Northern Peatland Decomposition, Accumulation and Carbon Sequestration Examined Through Molecular and Paleohydrological Analysis
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