A micro-flow-batch analyzer using webcam for spectrophotometric determination of Ortho-phosphate and aluminium(III) in tap water

Detalhes bibliográficos
Autor(a) principal: Lima,Marcelo B.
Data de Publicação: 2014
Outros Autores: Andrade,Stéfani I. E., Silva Neta,Maria S., Barreto,Inakã S., Almeida,Luciano F., Araújo,Mário César U.
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=S0103-50532014000500013
Resumo: In this work, a micro-flow-batch analyzer (µFBA) using webcam for spectrophotometric determination of ortho-phosphate and aluminium(III) in tap water is proposed. PO4(3-) and Al3+ determinations were performed by employing molybdenum blue and quecertin methods, respectively. In order to build linear analytical curves, a mathematical model was used on the basis of the RGB (red, green and blue) values. Working ranges were from 25 to 500 µg L-1 for both analytes with estimated limits of detection, relative standard deviation (RSD, n = 5) and sampling rate of 0.82 µg L-1, < 0.8% and 160 h-1 for PO4(3-), and 0.93 µg L-1, < 1.1% and 160 h-1 for Al(III). Comparing with the reference methods, no statistically significant differences were observed when applying the paired t-test at a 95% confidence level. Recovery study shows results between 98.1 and 102.8%. The proposed µFBA presented satisfactory portability, robustness, flexibility, low-cost device and reduced chemicals consumption.
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spelling A micro-flow-batch analyzer using webcam for spectrophotometric determination of Ortho-phosphate and aluminium(III) in tap watermicro-flow-batch analyzerdigital imagesRGB color systemwebcamtap waterIn this work, a micro-flow-batch analyzer (µFBA) using webcam for spectrophotometric determination of ortho-phosphate and aluminium(III) in tap water is proposed. PO4(3-) and Al3+ determinations were performed by employing molybdenum blue and quecertin methods, respectively. In order to build linear analytical curves, a mathematical model was used on the basis of the RGB (red, green and blue) values. Working ranges were from 25 to 500 µg L-1 for both analytes with estimated limits of detection, relative standard deviation (RSD, n = 5) and sampling rate of 0.82 µg L-1, < 0.8% and 160 h-1 for PO4(3-), and 0.93 µg L-1, < 1.1% and 160 h-1 for Al(III). Comparing with the reference methods, no statistically significant differences were observed when applying the paired t-test at a 95% confidence level. Recovery study shows results between 98.1 and 102.8%. The proposed µFBA presented satisfactory portability, robustness, flexibility, low-cost device and reduced chemicals consumption.Sociedade Brasileira de Química2014-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532014000500013Journal of the Brazilian Chemical Society v.25 n.5 2014reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.5935/0103-5053.20140059info:eu-repo/semantics/openAccessLima,Marcelo B.Andrade,Stéfani I. E.Silva Neta,Maria S.Barreto,Inakã S.Almeida,Luciano F.Araújo,Mário César U.eng2014-05-30T00:00:00Zoai:scielo:S0103-50532014000500013Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2014-05-30T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv A micro-flow-batch analyzer using webcam for spectrophotometric determination of Ortho-phosphate and aluminium(III) in tap water
title A micro-flow-batch analyzer using webcam for spectrophotometric determination of Ortho-phosphate and aluminium(III) in tap water
spellingShingle A micro-flow-batch analyzer using webcam for spectrophotometric determination of Ortho-phosphate and aluminium(III) in tap water
Lima,Marcelo B.
micro-flow-batch analyzer
digital images
RGB color system
webcam
tap water
title_short A micro-flow-batch analyzer using webcam for spectrophotometric determination of Ortho-phosphate and aluminium(III) in tap water
title_full A micro-flow-batch analyzer using webcam for spectrophotometric determination of Ortho-phosphate and aluminium(III) in tap water
title_fullStr A micro-flow-batch analyzer using webcam for spectrophotometric determination of Ortho-phosphate and aluminium(III) in tap water
title_full_unstemmed A micro-flow-batch analyzer using webcam for spectrophotometric determination of Ortho-phosphate and aluminium(III) in tap water
title_sort A micro-flow-batch analyzer using webcam for spectrophotometric determination of Ortho-phosphate and aluminium(III) in tap water
author Lima,Marcelo B.
author_facet Lima,Marcelo B.
Andrade,Stéfani I. E.
Silva Neta,Maria S.
Barreto,Inakã S.
Almeida,Luciano F.
Araújo,Mário César U.
author_role author
author2 Andrade,Stéfani I. E.
Silva Neta,Maria S.
Barreto,Inakã S.
Almeida,Luciano F.
Araújo,Mário César U.
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Lima,Marcelo B.
Andrade,Stéfani I. E.
Silva Neta,Maria S.
Barreto,Inakã S.
Almeida,Luciano F.
Araújo,Mário César U.
dc.subject.por.fl_str_mv micro-flow-batch analyzer
digital images
RGB color system
webcam
tap water
topic micro-flow-batch analyzer
digital images
RGB color system
webcam
tap water
description In this work, a micro-flow-batch analyzer (µFBA) using webcam for spectrophotometric determination of ortho-phosphate and aluminium(III) in tap water is proposed. PO4(3-) and Al3+ determinations were performed by employing molybdenum blue and quecertin methods, respectively. In order to build linear analytical curves, a mathematical model was used on the basis of the RGB (red, green and blue) values. Working ranges were from 25 to 500 µg L-1 for both analytes with estimated limits of detection, relative standard deviation (RSD, n = 5) and sampling rate of 0.82 µg L-1, < 0.8% and 160 h-1 for PO4(3-), and 0.93 µg L-1, < 1.1% and 160 h-1 for Al(III). Comparing with the reference methods, no statistically significant differences were observed when applying the paired t-test at a 95% confidence level. Recovery study shows results between 98.1 and 102.8%. The proposed µFBA presented satisfactory portability, robustness, flexibility, low-cost device and reduced chemicals consumption.
publishDate 2014
dc.date.none.fl_str_mv 2014-05-01
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=S0103-50532014000500013
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532014000500013
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.5935/0103-5053.20140059
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.25 n.5 2014
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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