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This paper discusses preliminary research on using photoinduced luminescence phenomena in determining the structural properties of humic acids extracted from the bottom sediments of two lakes. The lakes examined differ in the hydrochemical parameters of the water body, as well as in the drainage basins surrounding the lakes. Photoinduced luminescence of humic acids was induced with a halogen light of 1500 ěmol m-2 s-1 photon flux density. The differences observed are evidence of both the variable qualitative and quantitative contribution of photoluminophors to the structure of the examined humic acids, and of their different photochemical activity. Furthermore, photoinduced luminescence intensity depends on the degree of transformation of the humic acids.
Słowa kluczowe
Czasopismo
Rocznik
Tom
Strony
61--67
Opis fizyczny
bibliogr. 15 poz., tab., wykr.
Twórcy
autor
- West Pomeranian University in Szczecin, Department of Physics ul. Papieża Pawła VI 3, 71-459 Szczecin, Poland, lilla.mielnik@zut.edu.pl
Bibliografia
- 1.Alberts J.J., Takacs M., 2004, Total luminescence spectra of IHSS standard and reference fulvic acids, humic acids and natural organic matter: comparison of aquatic and terrestrial source terms, Organic Geochemistry 35: 243-56
- 2.Brzóstowicz A., 2002, Luminescence in agrophysical research, Acta Agrophysica, 60: 27-38, (in Polish with English summary)
- 3.Garton L.S., Sylvester B.A., Autenrieth R.L., Bonner J.S., 1993, Aquatic sediments, Water, Environment Research, 65 (4): 534-47
- 4.Gołębiowska D., 2004, Absorption spectrophotometry in UV-VIS range: parameters and way of analysis of humic compounds absorption spectra, [in:] Methods of examinations of humic substances of land and water ecosystems, Eds. Gołębiowska D., Wyd. Akademii Rolniczej w Szczecinie, 15-26, (in Polish with English summary)
- 5.Hayes M.H.B., 1998, Humic substances: progress towards more realistic concepts of structures, [in:] Humic substances: structures, properties and uses. Royal Society of Chemistry, Eds. Davies G., Ghabbour E.A., 1-27
- 6.Ishiwatari R., 1985, Geochemistry of humic substances in lake sediment, [in:] Humic substances in soil, sediment and water, Eds. Aiken G.R., McKnight D.M., Wershaw R.M., McCarthy R., John Wiley & Sons, New York, 147-80
- 7.Kononowa M., 1968, The soil organic substances, Państwowe Wydawnictwo Rolnicze i Leśne, Warszawa
- 8.Kraska M., Piotrowicz R., Klimaszyk P., 1996, Characteristics and functioning of lobelian lakes of West Pomerania, Eds. Gondko R., Gabryelak T., Bory Tucholskie-Biosphere Commeration Conference II, 16-18 October 1995: 18-34
- 9.Lipski M., Sławiński J., Zych D., 1999, Changes in the luminescent properties of humic acids induced by UV radiation, Journal of Fluorescence, 6(2): 133-38
- 10.MacCarthy P., Rice J.A., 1985, Spectroscopic methods (other than NMR) for determinig functionality in humic substances, [in:] Humic substances in soil, sediment and water, Eds. Aiken G.R., McKnight D.M., Wershaw R.M., McCarthy R., John Wiley & Sons, New York, 527-59
- 11.Mielnik L., 2001, Characteristics of humic acids of bottom sediments of lobelia lakes with different of the eutrophication degree, Szczecin, pp. 167 (in Polish)
- 12.Prokowski Z., 2001, Measurement set for continuous determination of fotoinduced luminescence of liquids and suspension, Acta Agrophysica, 48: 157-66 (in Polish with English summary)
- 13.Senesi N., 1992, Application of electron spin resonance and fluorescence spectroscopies to the study of soil humic substances, [in:] Humus, its structure and role in agriculture and environment, Eds. Kubat J., Elsevier, 11-26
- 14.Schnitzer M., Skinner S.I.M., 1968, Alkali versus acid extraction of soil organic matter, Soil Sci.: 105
- 15.Zsolnay A., 1997, The development of tests to Quantify the Potential ecological relevance of the water soluble humus, [in:] The Role of Humic Substances in the Ecosystems and in Environmental Protection, Eds. Drozd J., Gonet S.S., Senesi N., Weber J., IHSS-Polish Society of Humic Substances, Poland, 251-56
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BUS8-0001-0023