Fluorescent diagnostics of humic substances in ice: first steps toward a remote method

Autor:	Sergei M. Glushkov, Viktor V. Fadeev, Aleksei R. Faustov, Dmitrii Y. Vorontsov
Rok vydání:	1995
Předmět:	chemistry.chemical_classification Aqueous solution Base (chemistry) chemistry law Band shape Analytical chemistry Crystallization Luminescence Fluorescence Fluorescence spectra law.invention
Zdroj:	SPIE Proceedings.
ISSN:	0277-786X
DOI:	10.1117/12.197406
Popis:	A fluorescent study of aquatic humic substances (AHS) in ice has been performed in order to make the first step toward elaboration of a remote technique for their diagnostics in aqueous solid-phase-containing systems. The fluorescence spectra of AHS in ice samples were obtained for different temperatures ranged from 0 to 150 degree(s)C. An unusual distortion of the fluorescence band shape has been observed at low temperatures. Some conclusions on the form of presence of AHS in ice were made on the base of the spectroscopic study. Several specific experiments were carried out to characterize the crystallization process in AHS aqueous solutions.
Databáze:	OpenAIRE
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