Conformational transformation of humic substances in water

Anna P. Golovach; Alexander S. Kozlovski; Ivan I. Lishtvan; Nicolai A. Nemkovich; Anatoly Nikolaevich Rubinov

doi:10.1117/12.197415

2 January 1995 Conformational transformation of humic substances in water

Anna P. Golovach, Alexander S. Kozlovski, Ivan I. Lishtvan, Nicolai A. Nemkovich, Anatoly Nikolaevich Rubinov

Proceedings Volume 2370, 5th International Conference on Laser Applications in Life Sciences; (1995) https://doi.org/10.1117/12.197415
Event: Laser Applications in Life Sciences: 5th International Conference, 1994, Minsk, Belarus

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.

Citation Download Citation

Anna P. Golovach, Alexander S. Kozlovski, Ivan I. Lishtvan, Nicolai A. Nemkovich, and Anatoly Nikolaevich Rubinov "Conformational transformation of humic substances in water", Proc. SPIE 2370, 5th International Conference on Laser Applications in Life Sciences, (2 January 1995); https://doi.org/10.1117/12.197415

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