Characterization of AOX by fractionation analysis and size-exclusion chromatography

被引：0
作者：
Gremm, TJ [1 ]
Frimmel, FH [1 ]
机构：
[1] Univ Karlsruhe, Engler Bunte Inst, Water Chem Div, D-76131 Karlsruhe, Germany
来源：
ACTA HYDROCHIMICA ET HYDROBIOLOGICA | 2000年 / 28卷 / 04期
关键词：
AOX; halogenated compounds; river water; adsorption; size-exclusion chromatography; fractionation; model compound;
D O I：
10.1002/1521-401X(20004)28:4<202::AID-AHEH202>3.0.CO;2-Y
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
A characterization method for AOX in surface water samples was developed and tested. The method involves fractionation using a hydrophobic C18 resin and a weak anionic exchange resin and allows the fractionation of the AOX pool of surface water samples into four fractions: (1) hydrophilic acidic, (2) hydrophilic non-acidic, (3) hydrophobic acidic, and (4) hydrophobic non-acidic. The adsorption analysis was verified with AOX-relevant model compounds and was applied to characterize the AOX pool of a stream sample from the Moskva river (Russia). In addition to the fractionation analysis, size-exclusion chromatography was used to characterize the AOX pool of the sample studied. Hydrophilic acids made up the major fraction of the AOX pool (55%). Among this fraction chlorinated high-molecular acids (humic substances) made up the main fraction (35%).
引用
收藏
页码：202 / 211
页数：10
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