A flow-batch analyzer for UV-Vis spectrophotometric detection of adulteration in distilled spirits

Detalhes bibliográficos
Autor(a) principal: Nascimento,Elaine C. L.
Data de Publicação: 2011
Outros Autores: Araújo,Mário C. U., Galvão,Roberto K. H.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of the Brazilian Chemical Society (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532011000600009
Resumo: An automatic flow-batch analyzer is proposed for detection of adulteration in distilled spirits (whiskey, brandy, cachaça, rum and vodka) using UV-Vis spectrophotometry. The analyzer was employed to dilute the non-adulterated samples and to simulate adulteration with addition of 5 and 10% (v/v) of water, ethanol or methanol. SIMCA (soft independent modelling of class analogies) classification models were built using spectra of non-adulterated and adulterated samples in the region of 235-355 nm. By applying the SIMCA models to a test set, all adulterated and non-adulterated samples were correctly discriminated at a confidence level of 95% with an analytical throughput larger than 120 samples per hour.
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spelling A flow-batch analyzer for UV-Vis spectrophotometric detection of adulteration in distilled spiritsflow-batch analyzerSIMCAUV-Vis spectrophotometryadulteration of distilled spiritsscreening analysisAn automatic flow-batch analyzer is proposed for detection of adulteration in distilled spirits (whiskey, brandy, cachaça, rum and vodka) using UV-Vis spectrophotometry. The analyzer was employed to dilute the non-adulterated samples and to simulate adulteration with addition of 5 and 10% (v/v) of water, ethanol or methanol. SIMCA (soft independent modelling of class analogies) classification models were built using spectra of non-adulterated and adulterated samples in the region of 235-355 nm. By applying the SIMCA models to a test set, all adulterated and non-adulterated samples were correctly discriminated at a confidence level of 95% with an analytical throughput larger than 120 samples per hour.Sociedade Brasileira de Química2011-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532011000600009Journal of the Brazilian Chemical Society v.22 n.6 2011reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532011000600009info:eu-repo/semantics/openAccessNascimento,Elaine C. L.Araújo,Mário C. U.Galvão,Roberto K. H.eng2011-06-10T00:00:00Zoai:scielo:S0103-50532011000600009Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2011-06-10T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv A flow-batch analyzer for UV-Vis spectrophotometric detection of adulteration in distilled spirits
title A flow-batch analyzer for UV-Vis spectrophotometric detection of adulteration in distilled spirits
spellingShingle A flow-batch analyzer for UV-Vis spectrophotometric detection of adulteration in distilled spirits
Nascimento,Elaine C. L.
flow-batch analyzer
SIMCA
UV-Vis spectrophotometry
adulteration of distilled spirits
screening analysis
title_short A flow-batch analyzer for UV-Vis spectrophotometric detection of adulteration in distilled spirits
title_full A flow-batch analyzer for UV-Vis spectrophotometric detection of adulteration in distilled spirits
title_fullStr A flow-batch analyzer for UV-Vis spectrophotometric detection of adulteration in distilled spirits
title_full_unstemmed A flow-batch analyzer for UV-Vis spectrophotometric detection of adulteration in distilled spirits
title_sort A flow-batch analyzer for UV-Vis spectrophotometric detection of adulteration in distilled spirits
author Nascimento,Elaine C. L.
author_facet Nascimento,Elaine C. L.
Araújo,Mário C. U.
Galvão,Roberto K. H.
author_role author
author2 Araújo,Mário C. U.
Galvão,Roberto K. H.
author2_role author
author
dc.contributor.author.fl_str_mv Nascimento,Elaine C. L.
Araújo,Mário C. U.
Galvão,Roberto K. H.
dc.subject.por.fl_str_mv flow-batch analyzer
SIMCA
UV-Vis spectrophotometry
adulteration of distilled spirits
screening analysis
topic flow-batch analyzer
SIMCA
UV-Vis spectrophotometry
adulteration of distilled spirits
screening analysis
description An automatic flow-batch analyzer is proposed for detection of adulteration in distilled spirits (whiskey, brandy, cachaça, rum and vodka) using UV-Vis spectrophotometry. The analyzer was employed to dilute the non-adulterated samples and to simulate adulteration with addition of 5 and 10% (v/v) of water, ethanol or methanol. SIMCA (soft independent modelling of class analogies) classification models were built using spectra of non-adulterated and adulterated samples in the region of 235-355 nm. By applying the SIMCA models to a test set, all adulterated and non-adulterated samples were correctly discriminated at a confidence level of 95% with an analytical throughput larger than 120 samples per hour.
publishDate 2011
dc.date.none.fl_str_mv 2011-06-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532011000600009
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532011000600009
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-50532011000600009
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Journal of the Brazilian Chemical Society v.22 n.6 2011
reponame:Journal of the Brazilian Chemical Society (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Journal of the Brazilian Chemical Society (Online)
collection Journal of the Brazilian Chemical Society (Online)
repository.name.fl_str_mv Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv ||office@jbcs.sbq.org.br
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