SPECTROSCOPIC STUDY OF HUMIC SUBSTANCES ISOLATED FROM SEDIMENT AND WATER

被引：0
作者：
Bartoszek, Mariola [1 ]
Polak, Justyna [1 ]
Kos, Agnieszka [1 ]
Mlynarczyk, Natalia [1 ]
Sulkowski, Wieslaw W. [1 ]
机构：
[1] Silesian Univ, Inst Chem, Dept Environm Chem & Technol, PL-40006 Katowice, Poland
来源：
FRESENIUS ENVIRONMENTAL BULLETIN | 2010年 / 19卷 / 07期
关键词：
nuclear magnetic resonance (NMR); electron paramagnetic resonance (EPR) infrared (IR); humic acids; fulvic acids; sediment; SEWAGE-SLUDGE; FULVIC-ACID; SIZE; RESONANCE; GROUNDWATER; FRACTIONS; RADICALS; EPR;
D O I：
暂无
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
NMR, EPR and IR spectroscopic studies of humic substances isolated from sediment and water samples have been used for characterization of humification process occurring in the Goczalkowice Reservoir. Fulvic acids (FA) were isolated from both sediment and water samples whereas humic acids (HA) only from the former due to their absence in the latter. Humic substances were studied with IR spectroscopy in order to suggest the presence of functional chemical groups. Comparison of signal intensity of the main functional groups was conducted by means of H-1-NMR techniques. The concentration of free radicals was determined with EPR. It was found that free radical concentrations of FA isolated from sediment are considerably higher than those of FA from water and HA from sediment. On the basis of the interpretation of EPR and IR spectra, the formation of transition metal complexes with humic substances was confirmed.
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页码：1260 / 1264
页数：5
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