OXIDATIVE DECOMPOSITION OF ORGANIC-WATER POLLUTANTS WITH UV-ACTIVATED HYDROGEN-PEROXIDE - DETERMINATION OF ANIONIC PRODUCTS BY ION CHROMATOGRAPHY

被引:15
作者
SCHEUER, C
WIMMER, B
BISCHOF, H
NGUYEN, L
MAGUHN, J
SPITZAUER, P
KETTRUP, A
WABNER, D
机构
[1] GSF,INST OKOL CHEM,D-85356 FREISING,GERMANY
[2] TECH UNIV MUNICH,LEHRSTUHL OKOL CHEM,D-85350 FREISING,GERMANY
关键词
D O I
10.1016/0021-9673(95)00005-8
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
Organic water pollutants are decomposed by UV-activated hydrogen peroxide. Using ion chromatography, inorganic and organic anions formed by the oxidative treatment can simultaneously be determined at trace levels without any sample preparation. For identification of anionic metabolites of 2,4-dichlorophenoxyacetic acid (2,4-D), 2-nitrobenzoic acid and nitrobenzene, an ion chromatographic system with a combination of two detectors based on physically different principles, conductivity and UV absorption, is used. Hence the anionic water components can reliably be identified by two parameters: retention time and the concentration-independent specific ratio of conductivity and UV absorption response.
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页码:253 / 258
页数:6
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