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Water Resources - Reversed-phase high performance liquid chromatography in combination with a multiwave fluorescence detector has been used to analyze the natural water of the Suwannee River for... 相似文献
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A combination of sephadex gel-chromatography and polyacrylamide gel electrophoresis was used to obtain stable electrophoretic
fractions with different molecular sizes from a preparation of humic substances isolated from river water by reverse osmosis.
The photochemical activity of humic substances and their fractions was determined. For the first time it is shown that low-molecular
fractions of aquatic humic substances, when irradiated by polychromatic light, can intensely fluoresce and initiate the formation
of singlet O2, effectively destroying model compound furfural. The photochemical activity and intensity of fluorescence of high-molecular
fractions is insignificant. The obtained data will help to extend the current knowledge in the field of natural water hydrochemistry
about the ways of its natural self-purification from anthropogenic pollutants. 相似文献
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