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Development of a flow method for the determination of phosphate in estuarine and freshwaters - Comparison of flow cells in spectrophotometric sequential injection analysis

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dc.contributor.authorMesquita, Raquel B. R.
dc.contributor.authorFerreira, M. Teresa S. O. B.
dc.contributor.authorTóth, Ildikó V.
dc.contributor.authorBordalo, Adriano A.
dc.contributor.authorMcKelvied, Ian D.
dc.contributor.authorRangel, António O. S. S.
dc.date.accessioned2012-01-12T16:04:19Z
dc.date.available2012-01-12T16:04:19Z
dc.date.issued2011
dc.description.abstractA sequential injection system with dual analytical line was developed and applied in the comparison of two different detection systems viz; a conventional spectrophotometer with a commercial flow cell, and a multi-reflective flow cell coupled with a photometric detector under the same experimental conditions. The study was based on the spectrophotometric determination of phosphate using the molybdenum-blue chemistry. The two alternative flow cells were compared in terms of their response to variation of sample salinity, susceptibility to interferences and to refractive index changes. The developed method was applied to the determination of phosphate in natural waters (estuarine, river, well and ground waters). The achieved detection limit (0.007 mu M PO43-) is consistent with the requirement of the target water samples, and a wide quantification range (0.024-9.5 mu M) was achieved using both detection systems.por
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.citationMESQUITA, Raquel B. R....[et al] - Development of a flow method for the determination of phosphate in estuarine and freshwaters - Comparison of flow cells in spectrophotometric sequential injection analysis. Analytica Chimica Acta. ISSN 00032670. Vol. 701 (2011), p. 15– 22por
dc.identifier.doi10.1016/j.aca.2011.06.002
dc.identifier.eissn1873-4324
dc.identifier.issn0003-2670
dc.identifier.urihttp://hdl.handle.net/10400.14/7459
dc.identifier.wosWOS:000293871900003
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherElsevierpor
dc.subjectSequential injectionpor
dc.subjectPhosphate determinationpor
dc.subjectEstuarine and river waterpor
dc.subjectSpectrophotometrypor
dc.subjectMultireflectivepor
dc.titleDevelopment of a flow method for the determination of phosphate in estuarine and freshwaters - Comparison of flow cells in spectrophotometric sequential injection analysispor
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F41859%2F2007/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FAMB%2F64441%2F2006/PT
oaire.citation.endPage22
oaire.citation.issue1
oaire.citation.startPage15
oaire.citation.titleAnalytica Chimica Acta
oaire.citation.volume701
oaire.fundingStreamSFRH
oaire.fundingStream3599-PPCDT
person.familyNameMesquita
person.familyNameFerreira
person.familyNameTóth
person.familyNameA. Bordalo
person.familyNameMcKelvie
person.familyNameSantos Silva Rangel
person.givenNameRaquel
person.givenNameMaria Teresa
person.givenNameIldikó
person.givenNameAdriano
person.givenNameIan
person.givenNameAntónio Osmaro
person.identifierJ-4630-2013
person.identifier.ciencia-idEB1D-DEE3-0B60
person.identifier.ciencia-id8B15-A841-2083
person.identifier.ciencia-idD61D-7CFB-178A
person.identifier.orcid0000-0001-7745-1860
person.identifier.orcid0000-0002-8446-5600
person.identifier.orcid0000-0002-7342-1063
person.identifier.orcid0000-0002-9637-6541
person.identifier.orcid0000-0003-1199-180X
person.identifier.orcid0000-0002-6486-8947
person.identifier.ridJ-4630-2013
person.identifier.ridF-7731-2015
person.identifier.ridG-1733-2010
person.identifier.scopus-author-id7005556626
person.identifier.scopus-author-id35512332800
person.identifier.scopus-author-id7004738492
person.identifier.scopus-author-id7003714391
person.identifier.scopus-author-id7004827387
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
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
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