Abstract
Carbonate ions significantly inhibit the decomposition of TCE (trichloroethylene) and PCE (perchloroethylene) by gamma-rays. The inhibition effect is larger in the case of TCE than PCE due to a greater dependence of TCE decomposition on hydroxyl radicals. The inhibition effect of carbonate ions was characterized by an EPR/spin-trapping technique. The intensity of DMPO-OH adduct signal decreased as the carbonate ion concentration increased and the percent of signal reduction was linearly proportional to the logarithm of carbonate ion concentration. This directly proves that the carbonate ions inhibit the decomposition of TCE and PCE by scavenging hydroxyl radicals.
| Original language | English |
|---|---|
| Pages (from-to) | 217-219 |
| Number of pages | 3 |
| Journal | Journal of Radioanalytical and Nuclear Chemistry |
| Volume | 253 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2002 |
Bibliographical note
Funding Information:The Nuclear R & D program of MOST, Korea has funded this work.
Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
ASJC Scopus subject areas
- Analytical Chemistry
- Nuclear Energy and Engineering
- Radiology Nuclear Medicine and imaging
- Pollution
- Spectroscopy
- Public Health, Environmental and Occupational Health
- Health, Toxicology and Mutagenesis
