Characterisation of aquatic humic and non-humic matter with size-exclusion chromatography - organic carbon detection - organic nitrogen detection (LC-OCD-OND)

被引:1117
作者
Huber, Stefan A. [1 ]
Balz, Andreas [1 ]
Abert, Michael [1 ]
Pronk, Wouter [2 ]
机构
[1] DOC LABOR Dr Huber, D-76229 Karlsruhe, Germany
[2] Eawag, Swiss Fed Inst Aquat Sci & Technol, CH-8600 Dubendorf, Switzerland
关键词
Humic substances; Fulvic acids; Humic acids; HS-diagram; Organic carbon detector; SEC; Nitrogen detector; Biopolymers; EfOM; SECONDARY EFFLUENT; MOLECULAR-WEIGHT; WATER; QUANTIFICATION; IDENTIFICATION; SUBSTANCES; ADSORPTION; SELECTION; FOULANTS; REMOVAL;
D O I
10.1016/j.watres.2010.09.023
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Size-exclusion chromatography in combination with organic carbon detection (SEC-OCD) is an established method to separate the pool of NOM into major fractions of different sizes and chemical functions and to quantify these on the basis of organic carbon. One specific approach, also known as LC-OCD-OND, is based on the Grantzel thin-film UV-reactor. This approach is described with recent improvements in fraction assignation (humic substances, biopolymers, building blocks, low molecular weight organic acids and neutrals, hydrophobic organic carbon), the coupling of a novel organic nitrogen detector (OND), and an improved diagram for the characterisation of aquatic humic substances (HS-diagram). The diagram replaces the operational distinction between humic and fulvic acids by a continuum ranging from aquagenic fulvic acids to pedogenic humic acids. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码:879 / 885
页数:7
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