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Spectrophotometric determination of carbon dioxide and sulphur dioxide in wines by flow injection

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dc.contributor.authorAtanassov, G.T.
dc.contributor.authorLima, R.C.
dc.contributor.authorMesquita, Raquel B. R.
dc.contributor.authorRangel, António O. S. S.
dc.contributor.authorTóth, I.V.
dc.date.accessioned2011-10-20T17:36:29Z
dc.date.available2011-10-20T17:36:29Z
dc.date.issued2000
dc.description.abstractFlow injection analysis (FIA) methods for the spectrophotometric determination of CO2 and SO2 in wines are described. The determination of CO2 is based on the colour change of a low capacity buffer (containing an acid-base indicator) due to the dissolved carbon dioxide. The determination of SO2 is based on the decoloration of malachite green by sulphur dioxide. Two FIA manifolds are presented; one for the determination of CO2 in sparkling wines and another for the simultaneous determination of CO2 and SO2 in table wines. The analytes are isolated inside the manifold from the sample matrix using gas-diffusion units. Regression equations (FIA versus reference methods) showed no statistical difference, at 95 % confidence level, between the two sets of results for both determinations; additionally, for the determination of CO2, recovery values between 93.5 % and 111 % were found. RSD lower than 4.5 % for SO2 and 2.4 % for the CO2 determination were found. The sampling rates achieved were: 30 h–1 for the uniparametric system and 40 h–1 for the biparametric system. The single determination manifold is applicable in the concentration ranges of 0.5 to 4 g L–1 of CO2, and the simultaneous determination manifold in the range of 0.25 to 3 g L–1 of CO2 and 0.05 to 0.3 g L–1 of SO2por
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.citationATANASSOV, G. T....[et al.] - Spectrophotometric determination of carbon dioxide and sulphur dioxide in wines by flow injection. Analusis. ISSN 0365-4877. Vol. 28 (2000), p. 77-82por
dc.identifier.doi10.1051/analusis:2000100
dc.identifier.urihttp://hdl.handle.net/10400.14/6550
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherEDP Sciences, Wiley-VCHpor
dc.subjectCarbon dioxidepor
dc.subjectSulphur dioxidepor
dc.subjectWinespor
dc.subjectFlow injectionpor
dc.subjectSpectrophotometrypor
dc.titleSpectrophotometric determination of carbon dioxide and sulphur dioxide in wines by flow injectionpor
dc.typejournal article
dspace.entity.typePublication
person.familyNameMesquita
person.familyNameSantos Silva Rangel
person.familyNameTóth
person.givenNameRaquel
person.givenNameAntónio Osmaro
person.givenNameIldikó
person.identifierJ-4630-2013
person.identifier.ciencia-idEB1D-DEE3-0B60
person.identifier.ciencia-idD61D-7CFB-178A
person.identifier.orcid0000-0001-7745-1860
person.identifier.orcid0000-0002-6486-8947
person.identifier.orcid0000-0002-7342-1063
person.identifier.ridJ-4630-2013
person.identifier.ridG-1733-2010
person.identifier.scopus-author-id7005556626
person.identifier.scopus-author-id7004827387
person.identifier.scopus-author-id35512332800
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublicationf89887f1-4d1b-438b-8f03-27d9bda1de7b
relation.isAuthorOfPublication467be022-fd9c-4549-aa48-48ebcc1098eb
relation.isAuthorOfPublication7889563f-f3fc-4057-a97c-b51425b4dc46
relation.isAuthorOfPublication.latestForDiscovery467be022-fd9c-4549-aa48-48ebcc1098eb

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