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Spectral distribution of the radiochemiluminescence from gamma-irradiated humic acid

Abstract

This study was conducted to investigate radiochemiluminescence (RCL) spectra (340-650 nm), kinetics and absorption spectra of humic acids (HA) after their exposure of gamma-radiation (absorbed doses of 1-10 kGy, {sup 60}Co) in model systems. The kinetics and spectral distribution of RCL were measured using the single photon counting method (SPC) and cut-off filters. Absorption spectra (range 240-800 nm) of irradiated solutions indicated that post-radiative degradation/polymerization processes take place in the HA changing their macromolecule or properties. The intensity of the delayed RCL was nonlinearly and suggested that complex radical formation mechanisms were still involved in the post-radiative reactions. (author)
Authors:
Goraczko, W; [1]  Slawinski, J; [2]  Staninski, K [3] 
  1. Poznan University of Technology, Poznan (Poland). Faculty of Chemical Technology, Radio- and Photochemistry Department
  2. Institute of Ecotechnology, Gniezno (Poland). State High Vocational School
  3. Adam Mickiewicz University, Poznan (Poland). Faculty of Chemistry, Department of Rare Earths
Publication Date:
Sep 15, 2008
Product Type:
Journal Article
Resource Relation:
Journal Name: Journal of Radioanalytical and Nuclear Chemistry; Journal Volume: 277; Journal Issue: 3; Other Information: 19 refs
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ABSORPTION SPECTRA; GAMMA RADIATION; HUMIC ACIDS; IRRADIATION; NUCLEAR REACTION KINETICS; POLYMERIZATION; RADIOLUMINESCENCE
OSTI ID:
21111533
Country of Origin:
Hungary
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0236-5731; JRNCDM; TRN: HU0800445119033
Submitting Site:
INIS
Size:
page(s) 613-618
Announcement Date:
Dec 19, 2008

Citation Formats

Goraczko, W, Slawinski, J, and Staninski, K. Spectral distribution of the radiochemiluminescence from gamma-irradiated humic acid. Hungary: N. p., 2008. Web. doi:10.1007/s10967-007-7124-0.
Goraczko, W, Slawinski, J, & Staninski, K. Spectral distribution of the radiochemiluminescence from gamma-irradiated humic acid. Hungary. https://doi.org/10.1007/s10967-007-7124-0
Goraczko, W, Slawinski, J, and Staninski, K. 2008. "Spectral distribution of the radiochemiluminescence from gamma-irradiated humic acid." Hungary. https://doi.org/10.1007/s10967-007-7124-0.
@misc{etde_21111533,
title = {Spectral distribution of the radiochemiluminescence from gamma-irradiated humic acid}
author = {Goraczko, W, Slawinski, J, and Staninski, K}
abstractNote = {This study was conducted to investigate radiochemiluminescence (RCL) spectra (340-650 nm), kinetics and absorption spectra of humic acids (HA) after their exposure of gamma-radiation (absorbed doses of 1-10 kGy, {sup 60}Co) in model systems. The kinetics and spectral distribution of RCL were measured using the single photon counting method (SPC) and cut-off filters. Absorption spectra (range 240-800 nm) of irradiated solutions indicated that post-radiative degradation/polymerization processes take place in the HA changing their macromolecule or properties. The intensity of the delayed RCL was nonlinearly and suggested that complex radical formation mechanisms were still involved in the post-radiative reactions. (author)}
doi = {10.1007/s10967-007-7124-0}
journal = []
issue = {3}
volume = {277}
place = {Hungary}
year = {2008}
month = {Sep}
}