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Survey of trace elements (Al, As, Cd, Cr, Co, Hg, Mn, Ni, Pb, Se, and Si) in retail samples of flavoured and bottled waters

2009Journal article Open access
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dc.contributor.authorBarroso, M. Fátima
dc.contributor.authorRamos, Sandra
dc.contributor.authorOliva-Teles, Maria Teresa
dc.contributor.authorDelerue-Matos, Cristina
dc.contributor.authorSales, M. Goreti F.
dc.contributor.authorOliveira, M. Beatriz P. P.
dc.date.accessioned2013-11-21T15:27:06Z
dc.date.available2013-11-21T15:27:06Z
dc.date.issued2009
dc.description.abstractConcentrations of eleven trace elements (Al, As, Cd, Cr, Co, Hg, Mn, Ni, Pb, Se, and Si) were measured in 39 (natural and flavoured) water samples. Determinations were performed using graphite furnace electrothermetry for almost all elements (Al, As, Cd, Cr, Co, Mn, Ni, Pb, and Si). For Se determination hydride generation was used, and cold vapour generation for Hg. These techniques were coupled to atomic absorption spectrophotometry. The trace element content of still or sparkling natural waters changed from brand to brand. Significant differences between natural still and natural sparkling waters (p<0.001) were only apparent for Mn. The Mann–Whitney U-test was used to search for significant differences between flavoured and natural waters. The concentration of each element was compared with the presence of flavours, preservatives, acidifying agents, fruit juice and/or sweeteners, according to the labelled composition. It was shown that flavoured waters generally increase the trace element content. The addition of preservatives and acidifying regulators had a significant influence on Mn, Co, As and Si contents (p<0.05). Fruit juice can also be correlated to the increase of Co and As. Sweeteners did not provide any significant difference in Mn, Co, Se and Si content.por
dc.identifier.doi10.1080/02652030903081945pt_PT
dc.identifier.issn1939–3210
dc.identifier.issn1939–3229
dc.identifier.urihttp://hdl.handle.net/10400.22/2893
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherTaylor & Francispor
dc.relation.ispartofseriesFood Additives & Contaminants: Part B ; Vol. 2; Issue 2
dc.relation.publisherversionhttp://www.tandfonline.com/doi/abs/10.1080/02652030903081945#.UouCMX9qyZQpor
dc.subjectHealth significancepor
dc.subjectMetals analysis – atomic absorption spectrometry (AAS)por
dc.subjectMethod validationpor
dc.subjectStatistical analysispor
dc.subjectHeavy metals – arsenicpor
dc.subjectHeavy metals – cadmiumpor
dc.subjectHeavy metals – mercurypor
dc.subjectMetals – nutritionalpor
dc.subjectBeveragespor
dc.subjectDrinking waterpor
dc.subjectWaterpor
dc.titleSurvey of trace elements (Al, As, Cd, Cr, Co, Hg, Mn, Ni, Pb, Se, and Si) in retail samples of flavoured and bottled waterspor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage130por
oaire.citation.issueIssue 2
oaire.citation.startPage121por
oaire.citation.titleFood Additives and Contaminants: Part Bpor
oaire.citation.volume2por
oaire.citation.volumeVol. 2
person.familyNamede Sá Barroso
person.familyNameDelerue-Matos
person.givenNameMaria de Fátima
person.givenNameCristina
person.identifier.ciencia-idAF16-22E5-5EBD
person.identifier.ciencia-id9A1A-43FB-5C27
person.identifier.orcid0000-0001-9011-5992
person.identifier.orcid0000-0002-3924-776X
person.identifier.ridD-4990-2013
person.identifier.scopus-author-id25631648000
person.identifier.scopus-author-id6603741848
rcaap.rightsopenAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication3d701c85-4580-4614-be6d-5a1abc8cf729
relation.isAuthorOfPublication09f6a7bd-2f15-42b0-adc5-04bd22210519
relation.isAuthorOfPublication.latestForDiscovery3d701c85-4580-4614-be6d-5a1abc8cf729

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