Development of Automated Instrumentation for the Measurementof Dissolved Organic Nitrogen in Seawater, Freshwater and Soil Solutions

这是一项建议，旨在开发一种用于自动分析盐水、淡水和土壤溶液中溶解有机氮(DON)的仪器，并将其与Ionics，Inc.销售的现有溶解有机碳分析仪(DOC)相结合。这项开发将与Ionics，Inc.合作进行，Ionics，Inc.是一家我们已经与其合作了两年的公司，改进他们的1500型DOC分析仪。生态系统中心的7个大项目和1个小项目希望并需要使用DON分析仪，这些项目在未来5年的资金水平超过10,250,000美元。项目的范围从研究河口溶解有机物的来源和生物利用，到温带森林的氮的大气负荷和氮饱和，到海洋沉积物中的氮循环，以及有机物质的分解、营养矿化和跨越冻土带地貌和北极河流下游的转移。

This is a proposal to develop an instrument for the automated analysis of dissolved organic nitrogen (DON) in salt and fresh waters and soil solutions and to couple it with an existing dissolved organic carbon analyzer (DOC) marketed by Ionics, Inc. This development will be carried out in collaboration with Ionics, Inc, a company with which we have been interacting for 2 years in refining their Model 1500 DOC analyzer. Seven major and 1 minor projects at The Ecosystems Center, funded at a level exceeding $10,250,000 over the next 5 years, want to and need to make use of a DON analyzer. Projects range from studies of the origins and biological use of dissolved organic matter in estuaries, to atmospheric loading of nitrogen and N saturation of temperate forests, to N cycling in marine sediments and to the organic matter decomposition, nutrient mineralization and transfer across the tundra landscape and down arctic rivers.