dc.contributor.author |
Mesquita, Raquel B.R.
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dc.contributor.author |
Suárez Sánchez, Ruth
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dc.contributor.author |
Cerdà Martín, Víctor
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dc.contributor.author |
Rangel, M.
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dc.contributor.author |
Rangel, António O.S.S.
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dc.date.accessioned |
2018-09-21T12:19:25Z |
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dc.identifier.uri |
http://hdl.handle.net/11201/147596 |
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dc.description.abstract |
In thispaper,theuseof3-hydroxy-4-pyridinone(3,4-HPO)chelatorsasnontoxicchromogenicreagents for irondeterminationisproposed.Thepotentialapplicationofthesecompoundswasstudiedina sequentialinjectionsystem.The3,4-HPOligandsusedinthisworkwerespeciallydesignedtocomplex iron(III) atphysiologicpHforclinicalapplications.Thedevelopedsequentialinjectionmethodenabled to studythereactionconditions,suchasbufferingandinterferences.Then,tofurtherimprovethelow consumptionlevels,amicrosequentialinjectionmethodwasdevelopedandeffectivelyappliedtoiron determinationinbathingwatersusing3,4-HPOligands.Theformedironcomplexhasamaximum absorbanceat460nm.Theadvantageofusingminimalconsumptionvaluesassociatedwithsequential injection,togetherwiththelackoftoxicityof3,4-HPOligands,enabledtopresentagreenerchemistry approachforirondeterminationinenvironmentalsampleswithintherange0.10-2.00mgFe/Lwitha LOD of7 mg/L. Theoveralleffluentproductionwas350 mL correspondingtotheconsumptionof0.48mg of 3,4-HPOligand,0.11mgofNaHCO3, 0.16mgofHNO3 and 50 mL ofsample.Threereferencesamples were assessedforaccuracystudiesandarelativedeviation o5% wasobtained.Theresultsobtainedfor the assessmentofironininlandbathingwaterswerestatisticallycomparabletothoseobtainedbythe referenceprocedure. |
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dc.format |
application/pdf |
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dc.relation.isformatof |
Versió postprint del document publicat a: https://doi.org/10.1016/j.talanta.2013.02.058 |
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dc.relation.ispartof |
Talanta, 2013, vol. 108, p. 38-45 |
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dc.rights |
(c) Elsevier B.V., 2013 |
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dc.subject.classification |
54 - Química |
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dc.subject.other |
54 - Chemistry. Crystallography. Mineralogy |
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dc.title |
Exploiting the use of 3,4-HPO ligands as non toxic reagents for the determination of iron in natural waters with a sequential injection approach |
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dc.type |
info:eu-repo/semantics/article |
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dc.type |
info:eu-repo/semantics/acceptedVersion |
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dc.date.updated |
2018-09-21T12:19:26Z |
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dc.date.embargoEndDate |
info:eu-repo/date/embargoEnd/2075-01-01 |
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dc.embargo |
2075-01-01 |
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dc.subject.keywords |
Sequential Injection Analysis |
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dc.rights.accessRights |
info:eu-repo/semantics/embargoedAccess |
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dc.identifier.doi |
https://doi.org/10.1016/j.talanta.2013.02.058 |
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