Modified electrode voltammetric sensors for trace metals in environmental samples

Detalhes bibliográficos
Autor(a) principal: Brett,Christopher M.A.
Data de Publicação: 2000
Outros Autores: Fungaro,Denise A.
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=S0103-50532000000300017
Resumo: Nafion-modified mercury thin film electrodes have been investigated for the analysis of trace metals in environmental samples of waters and effluent by batch injection analysis with square wave anodic stripping voltammetry. The method, involving injection over the detector electrode of untreated samples of volume of the order of 50 microlitres has fast response, blocking and fouling of the electrode is minimum as shown by studies with surface-active components. Comparison is made between glassy carbon substrate electrodes and carbon fibre microelectrode array substrates, the latter leading to a small sensitivity enhancement. Application to analysis of river water and industrial effluent for labile zinc, cadmium, lead and copper ions is demonstrated in collected samples and after acid digestion.
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spelling Modified electrode voltammetric sensors for trace metals in environmental samplespolymer-modified electrodestrace metal analysisbatch injection analysisenvironmental monitoringNafion-modified mercury thin film electrodes have been investigated for the analysis of trace metals in environmental samples of waters and effluent by batch injection analysis with square wave anodic stripping voltammetry. The method, involving injection over the detector electrode of untreated samples of volume of the order of 50 microlitres has fast response, blocking and fouling of the electrode is minimum as shown by studies with surface-active components. Comparison is made between glassy carbon substrate electrodes and carbon fibre microelectrode array substrates, the latter leading to a small sensitivity enhancement. Application to analysis of river water and industrial effluent for labile zinc, cadmium, lead and copper ions is demonstrated in collected samples and after acid digestion.Sociedade Brasileira de Química2000-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532000000300017Journal of the Brazilian Chemical Society v.11 n.3 2000reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532000000300017info:eu-repo/semantics/openAccessBrett,Christopher M.A.Fungaro,Denise A.eng2000-11-06T00:00:00Zoai:scielo:S0103-50532000000300017Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2000-11-06T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Modified electrode voltammetric sensors for trace metals in environmental samples
title Modified electrode voltammetric sensors for trace metals in environmental samples
spellingShingle Modified electrode voltammetric sensors for trace metals in environmental samples
Brett,Christopher M.A.
polymer-modified electrodes
trace metal analysis
batch injection analysis
environmental monitoring
title_short Modified electrode voltammetric sensors for trace metals in environmental samples
title_full Modified electrode voltammetric sensors for trace metals in environmental samples
title_fullStr Modified electrode voltammetric sensors for trace metals in environmental samples
title_full_unstemmed Modified electrode voltammetric sensors for trace metals in environmental samples
title_sort Modified electrode voltammetric sensors for trace metals in environmental samples
author Brett,Christopher M.A.
author_facet Brett,Christopher M.A.
Fungaro,Denise A.
author_role author
author2 Fungaro,Denise A.
author2_role author
dc.contributor.author.fl_str_mv Brett,Christopher M.A.
Fungaro,Denise A.
dc.subject.por.fl_str_mv polymer-modified electrodes
trace metal analysis
batch injection analysis
environmental monitoring
topic polymer-modified electrodes
trace metal analysis
batch injection analysis
environmental monitoring
description Nafion-modified mercury thin film electrodes have been investigated for the analysis of trace metals in environmental samples of waters and effluent by batch injection analysis with square wave anodic stripping voltammetry. The method, involving injection over the detector electrode of untreated samples of volume of the order of 50 microlitres has fast response, blocking and fouling of the electrode is minimum as shown by studies with surface-active components. Comparison is made between glassy carbon substrate electrodes and carbon fibre microelectrode array substrates, the latter leading to a small sensitivity enhancement. Application to analysis of river water and industrial effluent for labile zinc, cadmium, lead and copper ions is demonstrated in collected samples and after acid digestion.
publishDate 2000
dc.date.none.fl_str_mv 2000-06-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532000000300017
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532000000300017
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-50532000000300017
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.11 n.3 2000
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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