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Exploiting the use of 3,4-HP Oligands as non toxic reagents for the determination of iron in natural waters with a sequential injection approach

2013Journal article Restricted access
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dc.contributor.authorMesquita, Raquel B. R.
dc.contributor.authorSuárez, Ruth
dc.contributor.authorCerdà, Víctor
dc.contributor.authorRangel, Maria
dc.contributor.authorRangel, António O.S.S.
dc.date.accessioned2014-05-08T14:21:30Z
dc.date.available2014-05-08T14:21:30Z
dc.date.issued2013
dc.description.abstractIn this paper, the use of 3-hydroxy-4-pyridinone (3,4-HPO) chelators as nontoxic chromogenic reagents for iron determination is proposed. The potential application of these compounds was studied in a sequential injection system. The 3,4-HPO ligands used in this work were specially designed to complex iron(III) at physiologic pH for clinical applications. The developed sequential injection method enabled to study the reaction conditions, such as buffering and interferences. Then, to further improve the low consumption levels, a microsequential injection method was developed and effectively applied to iron determination in bathing waters using 3,4-HPO ligands. The formed iron complex has a maximum absorbance at 460 nm. The advantage of using minimal consumption values associated with sequential injection, together with the lack of toxicity of 3,4-HPO ligands, enabled to present a greener chemistry approach for iron determination in environmental samples within the range 0.10-2.00 mg Fe/L with a LOD of 7 mu g/L. The overall effluent production was 350 mu L corresponding to the consumption of 0.48 mg of 3,4-HPO ligand, 0.11 mg of NaHCO3, 0.16 mg of HNO3 and 50 mu L. of sample. Three reference samples were assessed for accuracy studies and a relative deviation < 5% was obtained. The results obtained for the assessment of iron in inland bathing waters were statistically comparable to those obtained by the reference procedure.
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.citationMESQUITA, Raquel B. R. ...[et al.] - Exploiting the use of 3,4-HP Oligands as non toxic reagents for the determination of iron in natural waters with a sequential injection approach. Talanta. ISSN 0039-9140. Vol. 108 (2013), p. 38–45por
dc.identifier.doi10.1016/j.talanta.2013.02.058
dc.identifier.eissn1873-3573
dc.identifier.issn0039-9140
dc.identifier.urihttp://hdl.handle.net/10400.14/14323
dc.identifier.wosWOS:000319088900006
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherElsevierpor
dc.relationMHE2011-00034
dc.relationPEst-C/EQB/LA0016/2011
dc.relationCTQ2010-15541
dc.relation43/2011
dc.subject3-hydroxy-4-pyridinonepor
dc.subjectNontoxic chromogenic reagentspor
dc.subjectIron determinationpor
dc.subjectSequential injectionpor
dc.subjectInland bathing waterspor
dc.titleExploiting the use of 3,4-HP Oligands as non toxic reagents for the determination of iron in natural waters with a sequential injection approachpor
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F41859%2F2007/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876-PPCDTI/PTDC%2FAAC-AMB%2F104882%2F2008/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FAAG-MAA%2F3978%2F2012/PT
oaire.citation.endPage45
oaire.citation.startPage38
oaire.citation.titleTalanta
oaire.citation.volume108
oaire.fundingStreamSFRH
oaire.fundingStream5876-PPCDTI
oaire.fundingStream3599-PPCDT
person.familyNameMesquita
person.familyNameCerdà
person.familyNameRangel
person.familyNameSantos Silva Rangel
person.givenNameRaquel
person.givenNameVíctor
person.givenNameMaria
person.givenNameAntónio Osmaro
person.identifierJ-4630-2013
person.identifierR-000-ARW
person.identifier.ciencia-idEB1D-DEE3-0B60
person.identifier.ciencia-id2E18-5B36-29C0
person.identifier.ciencia-idD61D-7CFB-178A
person.identifier.orcid0000-0001-7745-1860
person.identifier.orcid0000-0001-7474-9426
person.identifier.orcid0000-0002-0998-1437
person.identifier.orcid0000-0002-6486-8947
person.identifier.ridJ-4630-2013
person.identifier.ridB-3732-2012
person.identifier.scopus-author-id7005556626
person.identifier.scopus-author-id7005344678
person.identifier.scopus-author-id55963098900
person.identifier.scopus-author-id7004827387
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
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