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Iron speciation by microsequential injection solid phase spectrometry using 3-hydroxy-1(H)-2-methyl-4-pyridinone as chromogenic reagent

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dc.contributor.authorSuárez, Ruth
dc.contributor.authorMesquita, Raquel B. R.
dc.contributor.authorRangel, Maria
dc.contributor.authorCerdà, Víctor
dc.contributor.authorRangel, António O.S.S.
dc.date.accessioned2016-01-08T14:45:00Z
dc.date.available2016-01-08T14:45:00Z
dc.date.issued2015
dc.description.abstractThe speciation of iron using the newly synthesized 3-hydroxy-1(H)-2-methyl-4-pyridinone by solid phase spectrophotometry in a microsequential injection lab-on-valve (µSI-LOV-SPS) methodology is described. Iron was retained in a reusable column, Nitrilotriacetic Acid Superflow (NTA) resin, and the ligand was used as both chromogenic and eluting reagent. This approach, analyte retention and matrix removal, enabled the assessment of iron (III) and total iron content in fresh waters and high salinity coastal waters with direct sample introduction, in the range of 20.0–100 µg/L. with a LOD of 9 µg/L. The overall effluent production was 2 mL, corresponding to the consumption of 0.48 µg of 2-metil-3-hydroxy-4-pyridinone, 0.34 mg of NaHCO3, 16 mg of HNO3, 4.4 µg H2O2 and 400 µL of sample. Four reference samples were analyzed and a relative deviation<10% was obtained; furthermore, several bathing waters (♯13) were analyzed using the developed method and the results were comparable to those obtained by atomic absorption spectrophotometry (relative deviations<6%).pt_PT
dc.description.versioninfo:eu-repo/semantics/acceptedVersion
dc.identifier.doi10.1016/j.talanta.2014.03.059pt_PT
dc.identifier.eid84913527031
dc.identifier.eissn1873-3573
dc.identifier.issn0039-9140
dc.identifier.pmid25435220
dc.identifier.urihttp://hdl.handle.net/10400.14/18868
dc.identifier.wos000347656200003
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationPEst-OE/EQB/LA006/2011pt_PT
dc.relationStrategic Project - LA 16 - 2011-2012
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectTotal ironpt_PT
dc.subjectIron(III)pt_PT
dc.subjectSolid phasespectrometrypt_PT
dc.subject3-Hydroxy-4-pyridinonept_PT
dc.subjectNTAresinpt_PT
dc.subjectLab-on-valvept_PT
dc.titleIron speciation by microsequential injection solid phase spectrometry using 3-hydroxy-1(H)-2-methyl-4-pyridinone as chromogenic reagentpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleStrategic Project - LA 16 - 2011-2012
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F41859%2F2007/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FAAG-MAA%2F3978%2F2012/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/PEst-OE%2FEQB%2FLA0016%2F2011/PT
oaire.citation.endPage20
oaire.citation.startPage15
oaire.citation.titleTalanta
oaire.citation.volume133
oaire.fundingStreamSFRH
oaire.fundingStream3599-PPCDT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameMesquita
person.familyNameRangel
person.familyNameCerdà
person.familyNameSantos Silva Rangel
person.givenNameRaquel
person.givenNameMaria
person.givenNameVíctor
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.orcid0000-0002-0998-1437
person.identifier.orcid0000-0001-7474-9426
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-id55963098900
person.identifier.scopus-author-id7005344678
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.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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