Linked Life Data

21514949

Source:http://linkedlifedata.com/resource/pubmed/id/21514949

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
2011-5-20
pubmed:abstractText
The relative rates of degradation of three hydroxyl radical probe compounds (atrazine, fenuron and parachlorobenzoic acid (pCBA)) by Fe(III)/H(2)O(2) (pH = 2.85), Fe(III)NTA/H(2)O(2) (neutral pH), Fe(II)/O(2), Fe(II)NTA/O(2), Fe(II)/H(2)O(2) and Fe(II)NTA/H(2)O(2) (neutral pH) have been investigated using the competitive kinetic method. Experiments were carried out in batch and in semi-batch reactors, in the dark, at 25 °C. The data showed that the three probe compounds could be degraded by all the systems studied, and in particular by Fe(II)NTA/H(2)O(2) and Fe(III)NTA/H(2)O(2) at neutral pH. The relative rate constants of degradation of the three probe compounds obtained for all the systems tested were identical and equal to 1.45 ± 0.03 and 0.47 ± 0.02 for k(Atrazine)/k(pCBA) and k(Fenuron)/k(pCBA), respectively. These values as well as the decrease of the rates of degradation of the probe compounds upon the addition of hydroxyl radical scavengers (tert-butanol, bicarbonate ions) suggest that the degradation of atrazine, fenuron and pCBA by Fe(II)NTA/O(2), Fe(II)NTA/H(2)O(2) and Fe(III)NTA/H(2)O(2) is initiated by hydroxyl radicals.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
1879-2448
pubmed:author
pubmed:copyrightInfo
Copyright © 2011 Elsevier Ltd. All rights reserved.
pubmed:issnType
Electronic
pubmed:volume
45
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3309-17
pubmed:meshHeading
pubmed:year
2011
pubmed:articleTitle
Hydroxyl radical involvement in the decomposition of hydrogen peroxide by ferrous and ferric-nitrilotriacetate complexes at neutral pH.
pubmed:affiliation
Université de Poitiers, Laboratoire de Chimie et Microbiologie de l'Eau (CNRS UMR 6008), Ecole Nationale Supérieure d'Ingénieurs de Poitiers, 40, Avenue du Recteur Pineau, 86 022 Poitiers Cedex, France.
pubmed:publicationType
Journal Article