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Article: Optimizing electron spin resonance detection of hydroxyl radical in water

TitleOptimizing electron spin resonance detection of hydroxyl radical in water
Authors
KeywordsElectron spin resonance
Fenton reaction
Hydroxyl radical
Orthogonal experiment design
Issue Date2003
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/chemosphere
Citation
Chemosphere, 2003, v. 52 n. 10, p. 1797-1805 How to Cite?
AbstractThe parameters affecting the electron spin resonance (ESR) detection of hydroxyl free radical in water are studied and optimized. The hydroxyl radical is generated by the Fenton reaction with iron (II) ammonium sulfate and hydrogen peroxide reacting in a phosphate buffer using N-tert-butyl-alpha- phenylnitron as the spin trap. The concentrations of Fe 2+, H 2O 2, and phosphate buffer are the parameters studied. The Taguchi method and the orthogonal experiment design were used to evaluate the effects of these parameters on the ESR signal intensity. By the analysis of the signal-to-noise ratio and the analysis of variance, the order of importance of the various parameters on the hydroxyl radical formation is determined for optimal ESR detection of hydroxyl radical. The results will help the development of water purification technologies using hydroxyl free radical as a green oxidant. © 2003 Elsevier Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/68791
ISSN
2015 Impact Factor: 3.698
2015 SCImago Journal Rankings: 1.536
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorCheng, SAen_HK
dc.contributor.authorFung, WKen_HK
dc.contributor.authorChan, KYen_HK
dc.contributor.authorShen, PKen_HK
dc.date.accessioned2010-09-06T06:07:45Z-
dc.date.available2010-09-06T06:07:45Z-
dc.date.issued2003en_HK
dc.identifier.citationChemosphere, 2003, v. 52 n. 10, p. 1797-1805en_HK
dc.identifier.issn0045-6535en_HK
dc.identifier.urihttp://hdl.handle.net/10722/68791-
dc.description.abstractThe parameters affecting the electron spin resonance (ESR) detection of hydroxyl free radical in water are studied and optimized. The hydroxyl radical is generated by the Fenton reaction with iron (II) ammonium sulfate and hydrogen peroxide reacting in a phosphate buffer using N-tert-butyl-alpha- phenylnitron as the spin trap. The concentrations of Fe 2+, H 2O 2, and phosphate buffer are the parameters studied. The Taguchi method and the orthogonal experiment design were used to evaluate the effects of these parameters on the ESR signal intensity. By the analysis of the signal-to-noise ratio and the analysis of variance, the order of importance of the various parameters on the hydroxyl radical formation is determined for optimal ESR detection of hydroxyl radical. The results will help the development of water purification technologies using hydroxyl free radical as a green oxidant. © 2003 Elsevier Ltd. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/chemosphereen_HK
dc.relation.ispartofChemosphereen_HK
dc.subjectElectron spin resonanceen_HK
dc.subjectFenton reactionen_HK
dc.subjectHydroxyl radicalen_HK
dc.subjectOrthogonal experiment designen_HK
dc.titleOptimizing electron spin resonance detection of hydroxyl radical in wateren_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0045-6535&volume=52&spage=1797&epage=1805&date=2003&atitle=Optimizing+Electron+Spin+resonance+Detection+of+Hydroxyl+Radical+in+Wateren_HK
dc.identifier.emailChan, KY:hrsccky@hku.hken_HK
dc.identifier.authorityChan, KY=rp00662en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/S0045-6535(03)00369-2en_HK
dc.identifier.scopuseid_2-s2.0-0642275498en_HK
dc.identifier.hkuros139869en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0642275498&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume52en_HK
dc.identifier.issue10en_HK
dc.identifier.spage1797en_HK
dc.identifier.epage1805en_HK
dc.identifier.isiWOS:000184506000014-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridCheng, SA=7404684913en_HK
dc.identifier.scopusauthoridFung, WK=16495081100en_HK
dc.identifier.scopusauthoridChan, KY=7406034142en_HK
dc.identifier.scopusauthoridShen, PK=7201767641en_HK

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