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Article: Trace enrichment and ion chromatographic determination of metal oxoanions in environmental water samples

TitleTrace enrichment and ion chromatographic determination of metal oxoanions in environmental water samples
Authors
KeywordsIon Chromatography
Metals
Oxoanions
Preconcentration
Issue Date1995
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/aca
Citation
Analytica Chimica Acta, 1995, v. 309 n. 1-3, p. 173-179 How to Cite?
AbstractFor the analysis of trace metal oxoanions using non-suppressed ion chromatography (IC), the presence of nitrite, nitrate and bromide in high quantities can seriously interfere with direct spectrophotometric detection. Similarly, direct analysis of water of high salt content like hard water will also encounter the problem of column disturbance. Sample pretreatment using a chelating resin for matrix cleanup and trace enrichment were investigated. Chelex-100 resin was found to be useful for removing common inorganic unions and retaining metal oxoanions. Recoveries of > 90% were obtained for SeO4/2- AsO4/3-, MoO4 2-, VO3/- and WO4/2-, whereas the recovery of CrO4/2- was ca. 70%. With 40-fold preconcentration, the detection limits for some of the oxoanions could be lowered to sub-ng ml-1 levels. Well separated peaks and no interferences were observed for the analysis of environmental water samples using the new IC procedures and the results compared favourably with those obtained by atomic absorption spectrometry.
Persistent Identifierhttp://hdl.handle.net/10722/167534
ISSN
2015 Impact Factor: 4.712
2015 SCImago Journal Rankings: 1.548
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorFung, YSen_US
dc.contributor.authorDao, KLen_US
dc.date.accessioned2012-10-08T03:08:10Z-
dc.date.available2012-10-08T03:08:10Z-
dc.date.issued1995en_US
dc.identifier.citationAnalytica Chimica Acta, 1995, v. 309 n. 1-3, p. 173-179en_US
dc.identifier.issn0003-2670en_US
dc.identifier.urihttp://hdl.handle.net/10722/167534-
dc.description.abstractFor the analysis of trace metal oxoanions using non-suppressed ion chromatography (IC), the presence of nitrite, nitrate and bromide in high quantities can seriously interfere with direct spectrophotometric detection. Similarly, direct analysis of water of high salt content like hard water will also encounter the problem of column disturbance. Sample pretreatment using a chelating resin for matrix cleanup and trace enrichment were investigated. Chelex-100 resin was found to be useful for removing common inorganic unions and retaining metal oxoanions. Recoveries of > 90% were obtained for SeO4/2- AsO4/3-, MoO4 2-, VO3/- and WO4/2-, whereas the recovery of CrO4/2- was ca. 70%. With 40-fold preconcentration, the detection limits for some of the oxoanions could be lowered to sub-ng ml-1 levels. Well separated peaks and no interferences were observed for the analysis of environmental water samples using the new IC procedures and the results compared favourably with those obtained by atomic absorption spectrometry.en_US
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/acaen_US
dc.relation.ispartofAnalytica Chimica Actaen_US
dc.subjectIon Chromatographyen_US
dc.subjectMetalsen_US
dc.subjectOxoanionsen_US
dc.subjectPreconcentrationen_US
dc.titleTrace enrichment and ion chromatographic determination of metal oxoanions in environmental water samplesen_US
dc.typeArticleen_US
dc.identifier.emailFung, YS:ysfung@hku.hken_US
dc.identifier.authorityFung, YS=rp00697en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/0003-2670(95)00057-7en_US
dc.identifier.scopuseid_2-s2.0-0029004126en_US
dc.identifier.hkuros7271-
dc.identifier.volume309en_US
dc.identifier.issue1-3en_US
dc.identifier.spage173en_US
dc.identifier.epage179en_US
dc.identifier.isiWOS:A1995RE06100022-
dc.publisher.placeNetherlandsen_US
dc.identifier.scopusauthoridFung, YS=13309754700en_US
dc.identifier.scopusauthoridDao, KL=7006126314en_US

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