Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.
2002
Volume 5
Issue 2
Topic:
Environmental Development
ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Sławińska D. , Polewski K. , Rolewski P. , Pluciński P. , Sławiński J. 2002. SPECTROSCOPIC STUDIES ON UVC-INDUCED PHOTODEGRADATION OF HUMIC ACIDS, EJPAU 5(2), #05.
Available Online: http://www.ejpau.media.pl/volume5/issue2/environment/abs-05.html

SPECTROSCOPIC STUDIES ON UVC-INDUCED PHOTODEGRADATION OF HUMIC ACIDS

Danuta Sławińska, Krzysztof Polewski, Piotr Rolewski, Patryk Pluciński, Janusz Sławiński

 

ABSTRACT



The effect of UV radiation on absorption, fluorescence spectra and dynamics of phototransformation of five different humic acids (HA) of natural and synthetic origin were investigated. Two types of synthetic HA were prepared: one containing only C, H and O atoms, and another with content of C, H, O and N atoms. Natural HA were also diversified with respect to their origin. We used UV-C radiation (predominantly the wavelength of 254 nm) to provide a wide spectrum of photochemical mechanisms.

Key words: humic acids, fluorescence and absorption spectra, UV-C radiation, photodegradation.