Construction and application of a portable microcontrolled turbidimeter for the in situ determination of sulfate

Detalhes bibliográficos
Autor(a) principal: Santos,Vagner B. dos
Data de Publicação: 2012
Outros Autores: Guerreiro,Thiago B., Faria,Ronaldo C., Fatibello-Filho,Orlando, Suarez,Willian T.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000400027
Resumo: This study reports on the construction of a turbidimeter employing light emitting diodes as radiation source at a wavelength of 405 nm, a photodiode as detector, a temperature sensor and a microcontroller used for data acquisition and processing. The turbidimeter was applied to determine sulfate concentrations in natural water employing barium chloride as reagent. Potential interferences and recovery studies were performed and an interference of 3.5 % and a recovery between 97.8 and 108 % were estimated. The analytical performance of in situ turbidimeter for the determination of sulfate was evaluated and compared with two commercial spectrophotometers and a good agreement was obtained.
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spelling Construction and application of a portable microcontrolled turbidimeter for the in situ determination of sulfateturbidimetryin situ analysessulfate determinationThis study reports on the construction of a turbidimeter employing light emitting diodes as radiation source at a wavelength of 405 nm, a photodiode as detector, a temperature sensor and a microcontroller used for data acquisition and processing. The turbidimeter was applied to determine sulfate concentrations in natural water employing barium chloride as reagent. Potential interferences and recovery studies were performed and an interference of 3.5 % and a recovery between 97.8 and 108 % were estimated. The analytical performance of in situ turbidimeter for the determination of sulfate was evaluated and compared with two commercial spectrophotometers and a good agreement was obtained.Sociedade Brasileira de Química2012-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000400027Química Nova v.35 n.4 2012reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422012000400027info:eu-repo/semantics/openAccessSantos,Vagner B. dosGuerreiro,Thiago B.Faria,Ronaldo C.Fatibello-Filho,OrlandoSuarez,Willian T.eng2012-05-28T00:00:00Zoai:scielo:S0100-40422012000400027Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2012-05-28T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Construction and application of a portable microcontrolled turbidimeter for the in situ determination of sulfate
title Construction and application of a portable microcontrolled turbidimeter for the in situ determination of sulfate
spellingShingle Construction and application of a portable microcontrolled turbidimeter for the in situ determination of sulfate
Santos,Vagner B. dos
turbidimetry
in situ analyses
sulfate determination
title_short Construction and application of a portable microcontrolled turbidimeter for the in situ determination of sulfate
title_full Construction and application of a portable microcontrolled turbidimeter for the in situ determination of sulfate
title_fullStr Construction and application of a portable microcontrolled turbidimeter for the in situ determination of sulfate
title_full_unstemmed Construction and application of a portable microcontrolled turbidimeter for the in situ determination of sulfate
title_sort Construction and application of a portable microcontrolled turbidimeter for the in situ determination of sulfate
author Santos,Vagner B. dos
author_facet Santos,Vagner B. dos
Guerreiro,Thiago B.
Faria,Ronaldo C.
Fatibello-Filho,Orlando
Suarez,Willian T.
author_role author
author2 Guerreiro,Thiago B.
Faria,Ronaldo C.
Fatibello-Filho,Orlando
Suarez,Willian T.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Santos,Vagner B. dos
Guerreiro,Thiago B.
Faria,Ronaldo C.
Fatibello-Filho,Orlando
Suarez,Willian T.
dc.subject.por.fl_str_mv turbidimetry
in situ analyses
sulfate determination
topic turbidimetry
in situ analyses
sulfate determination
description This study reports on the construction of a turbidimeter employing light emitting diodes as radiation source at a wavelength of 405 nm, a photodiode as detector, a temperature sensor and a microcontroller used for data acquisition and processing. The turbidimeter was applied to determine sulfate concentrations in natural water employing barium chloride as reagent. Potential interferences and recovery studies were performed and an interference of 3.5 % and a recovery between 97.8 and 108 % were estimated. The analytical performance of in situ turbidimeter for the determination of sulfate was evaluated and compared with two commercial spectrophotometers and a good agreement was obtained.
publishDate 2012
dc.date.none.fl_str_mv 2012-01-01
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=S0100-40422012000400027
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000400027
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0100-40422012000400027
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 Química Nova v.35 n.4 2012
reponame:Química Nova (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Química Nova (Online)
collection Química Nova (Online)
repository.name.fl_str_mv Química Nova (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv quimicanova@sbq.org.br
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