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Proceedings Paper

Conformational transformation of humic substances in water
Author(s): Anna P. Golovach; Alexander S. Kozlovski; Ivan I. Lishtvan; Nicolai A. Nemkovich; Anatoly Nikolaevich Rubinov
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Paper Abstract

Conformational transformation of dissolved humic substances induced by NaOH and HCl addition in water has been investigated by automated subnanosecond laser spectrofluorimeter and fluorescence probe method. The equilibrium constants for binding of Rhodamine 6G to dissolved humic substances in water have been determined by a fluorescence quenching method. It is shown that the conformational structure of humic compounds in water depends on the intra- and intermolecular interactions. Spectral and viscosimetrical data in pH region 1.5 - 12.0 are interpreted in terms of conformational transformation of dissolved humic substances from a rigid globule to a flexible chain.

Paper Details

Date Published: 2 January 1995
PDF: 4 pages
Proc. SPIE 2370, 5th International Conference on Laser Applications in Life Sciences, (2 January 1995); doi: 10.1117/12.197415
Show Author Affiliations
Anna P. Golovach, Institute for Problems of the Use of Natural Resources and Ecology (Belarus)
Alexander S. Kozlovski, Institute of Physics (Belarus)
Ivan I. Lishtvan, Institute for Problems of the Use of Natural Resources and Ecology (Belarus)
Nicolai A. Nemkovich, Institute of Physics (Belarus)
Anatoly Nikolaevich Rubinov, Institute of Physics (Belarus)


Published in SPIE Proceedings Vol. 2370:
5th International Conference on Laser Applications in Life Sciences
Pavel A. Apanasevich; Nikolai I. Koroteev; Sergei G. Kruglik; Victor N. Zadkov, Editor(s)

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