Improved speciation of dissolved organic nitrogen in natural waters: amide hydrolysis with fluorescence derivatization

作     者：Ryan L.Fimmen Tamara D.Trouts Daniel D.Richter Jr. Dharni Vasudevan 

作者机构：School of Earth Sciences The Ohio State University 125 S.Oval MallColumbus OH 43210 USA.Nicholas School of the Environment and Earth Sciences Duke University Durham NC 27708 USA School of Earth Sciences The Ohio State University 125 S.Oval MallColumbus OH 43210 USA Nicholas School of the Environment and Earth Sciences Duke UniversityDurham NC 27708 USA. Nicholas School of the Environment and Earth Sciences Duke UniversityDurham NC 27708 USA.Department of Chemistry Bowdoin CollegeBrunswick ME 04011 USA 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2008年第20卷第10期

页      面：1273-1280页

核心收录：

学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 083001[工学-环境科学] 08[工学] 

基　　金：the Andrew Mellon Foundation,NSF Biocomplexity Program (Richter) NSF Career Grant BES-9984489(Vasudevan) and the EPA-STAR program (Fimmen) for funding 

主　　题：dissolved organic matter/nitrogen (DOM/DON) o-phthaldialdehyde fluorescamine ninhydrin amino acids amide hydrolysis peptides 

摘      要：The objective of this study was to improve primary-amine nitrogen (1°-N) quantification in dissolved organic matter (DOM) originating from natural waters where inorganic forms of N, which may cause analytical interference, are commonly encountered. Efforts were targeted at elucidating organic-N structural criteria influencing the response of organic amines to known colorimetric and fluorescent reagents and exploring the use of divalent metal-assisted amide hydrolysis in combination with fluorescence analyse...