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Synthesis and characterization of a 3-hydroxy-4-pyridinone chelator functionalized with a polyethylene glycol (PEG) chain aimed at sequential injection determination of iron in natural waters

2015Journal article Restricted access
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dc.contributor.authorMesquita, Raquel
dc.contributor.authorMoniz, Tânia
dc.contributor.authorMiranda, Joana L. A.
dc.contributor.authorGomes, Vânia
dc.contributor.authorSilva, André M. N.
dc.contributor.authorRodriguez-Borges, J. E.
dc.contributor.authorRangel, António O. S. S.
dc.contributor.authorRangel, Maria
dc.date.accessioned2016-01-05T11:42:35Z
dc.date.available2016-01-05T11:42:35Z
dc.date.issued2015
dc.description.abstractThe synthesis of a highly water soluble 3-hydroxy-4-pyridinone ligand, functionalized with a hydrophilic ethylene glycol chain (PEG-HPO), was successfully achieved and is reported together with that of its iron (III) complex. The improved hydrophilicity of both the PEGylated 3,4-HPO ligand and its iron(III) complex were fully investigated in an analytical application and, the new chelator is proposed for the spectrophotometric sequential injection determination of iron in waters. The new ligand provided better sensitivity and a lower LOD for iron determination than that obtained for N-alkyl-3-hydroxy-4-pyridinone ligands. The developed sequential injection method presents a dynamic working range of 0.10-1.00 mg Fell. with a LOD of 48 mu g/L. Due to the use of a sequential injection system, the overall effluent production was <2 mL corresponding to the consumption of 44 mu g of PEG-HPO, 0.71 mg of NaHCO3, 0.92 mg of HNO3 and 500 mu L of sample. Two reference samples were assessed for accuracy studies and a relative deviation <5% was obtained; eight waters samples were analyzed and the results compared with the reference procedure, and no statistical difference was observed for the two sets of results.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.citationMESQUITA, Raquel B.R.; MONIZ, T.; MIRANDA, J. L. A.; GOMES, V.; SILVA, A. M. N.: RODRIGUEZ-BORGES, J.E.; RANGEL, Antonio O.S.S.; RANGEL, Maria - Synthesis and characterization of a 3-hydroxy-4-pyridinone chelator functionalized with a polyethylene glycol (PEG) chain aimed at sequential injection determination of iron in natural waters. Polyhedron. ISSN: 0277-5387. (2015) 101, 171–178pt_PT
dc.identifier.doi10.1016/j.poly.2015.09.015pt_PT
dc.identifier.eid84942424474
dc.identifier.issn0277-5387
dc.identifier.urihttp://hdl.handle.net/10400.14/18825
dc.identifier.wos000366077600023
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationPTDC/AAG-MAA/3978/2012_BI_2pt_PT
dc.relationDESIGN OF NOVEL 3-HYDROXY-4-PYRIDINONE IRON CHELATORS TO FIGHT MYCOBACTERIUM INFECTION
dc.relationNORTE-07-0162-FEDER-000048pt_PT
dc.relationNORTE-07-0124-FEDER-000066/67pt_PT
dc.relationREDE/1517/RMN/200pt_PT
dc.relationCTQ2013-47461-Rpt_PT
dc.subject3-Hydroxy-4-pyridinonept_PT
dc.subjectIronpt_PT
dc.subjectPEGylationpt_PT
dc.subjectSequential injectionpt_PT
dc.subjectWater solubilitypt_PT
dc.titleSynthesis and characterization of a 3-hydroxy-4-pyridinone chelator functionalized with a polyethylene glycol (PEG) chain aimed at sequential injection determination of iron in natural waterspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleDESIGN OF NOVEL 3-HYDROXY-4-PYRIDINONE IRON CHELATORS TO FIGHT MYCOBACTERIUM INFECTION
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FAAG-MAA%2F3978%2F2012/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F79874%2F2011/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F41859%2F2007/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PEst-OE%2FEQB%2FLA0016%2F2013/PT
oaire.citation.endPage178
oaire.citation.startPage171
oaire.citation.titlePolyhedron
oaire.citation.volume101
oaire.fundingStream3599-PPCDT
oaire.fundingStreamSFRH
oaire.fundingStream3599-PPCDT
person.familyNameMesquita
person.familyNameMoniz
person.familyNameMiranda
person.familyNameGomes
person.familyNameSilva
person.familyNameRodriguez-Borges
person.familyNameSantos Silva Rangel
person.familyNameRangel
person.givenNameRaquel
person.givenNameTânia
person.givenNameJoana
person.givenNameVânia
person.givenNameAndre
person.givenNameJosé Enrique
person.givenNameAntónio Osmaro
person.givenNameMaria
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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.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
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
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