Electrochemical behavior of parent and photodegradation products of some selected pesticides

Detalhes bibliográficos
Autor(a) principal: Vaz,Carlos M. P.
Data de Publicação: 2008
Outros Autores: Silva Jr.,Paulo R. V., Prado,Isis, Castanho,Giuliane M., Simões,Fabio R., Machado,Sérgio A. S.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000600007
Resumo: Electrochemical behavior of pesticides is extensively studied, but little attention has been given to the study of their degradation products (by-products) by electrochemical methods. However, the degradation products of pesticides can be even more toxic then the parent products and such studies should be encouraged. Therefore, the objective of this work was to evaluate the electroactivity of by-products of imazaquin, methylparathion, bentazon and atrazine, generated by UV irradiation and measured using cyclic and differential pulse voltammetry and UV-visible absorption spectrophotometry. Results have shown that several by-products exhibit electroactivity, allowing, in some cases, the simultaneous determination of both parent and degradation products.
id SBQ-3_b9c60ddd86b03b13eb4614e6f636ea64
oai_identifier_str oai:scielo:S0100-40422008000600007
network_acronym_str SBQ-3
network_name_str Química Nova (Online)
repository_id_str
spelling Electrochemical behavior of parent and photodegradation products of some selected pesticidespesticidesdifferential pulse voltammetryphotodegradationElectrochemical behavior of pesticides is extensively studied, but little attention has been given to the study of their degradation products (by-products) by electrochemical methods. However, the degradation products of pesticides can be even more toxic then the parent products and such studies should be encouraged. Therefore, the objective of this work was to evaluate the electroactivity of by-products of imazaquin, methylparathion, bentazon and atrazine, generated by UV irradiation and measured using cyclic and differential pulse voltammetry and UV-visible absorption spectrophotometry. Results have shown that several by-products exhibit electroactivity, allowing, in some cases, the simultaneous determination of both parent and degradation products.Sociedade Brasileira de Química2008-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000600007Química Nova v.31 n.6 2008reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422008000600007info:eu-repo/semantics/openAccessVaz,Carlos M. P.Silva Jr.,Paulo R. V.Prado,IsisCastanho,Giuliane M.Simões,Fabio R.Machado,Sérgio A. S.eng2008-10-10T00:00:00Zoai:scielo:S0100-40422008000600007Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2008-10-10T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Electrochemical behavior of parent and photodegradation products of some selected pesticides
title Electrochemical behavior of parent and photodegradation products of some selected pesticides
spellingShingle Electrochemical behavior of parent and photodegradation products of some selected pesticides
Vaz,Carlos M. P.
pesticides
differential pulse voltammetry
photodegradation
title_short Electrochemical behavior of parent and photodegradation products of some selected pesticides
title_full Electrochemical behavior of parent and photodegradation products of some selected pesticides
title_fullStr Electrochemical behavior of parent and photodegradation products of some selected pesticides
title_full_unstemmed Electrochemical behavior of parent and photodegradation products of some selected pesticides
title_sort Electrochemical behavior of parent and photodegradation products of some selected pesticides
author Vaz,Carlos M. P.
author_facet Vaz,Carlos M. P.
Silva Jr.,Paulo R. V.
Prado,Isis
Castanho,Giuliane M.
Simões,Fabio R.
Machado,Sérgio A. S.
author_role author
author2 Silva Jr.,Paulo R. V.
Prado,Isis
Castanho,Giuliane M.
Simões,Fabio R.
Machado,Sérgio A. S.
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Vaz,Carlos M. P.
Silva Jr.,Paulo R. V.
Prado,Isis
Castanho,Giuliane M.
Simões,Fabio R.
Machado,Sérgio A. S.
dc.subject.por.fl_str_mv pesticides
differential pulse voltammetry
photodegradation
topic pesticides
differential pulse voltammetry
photodegradation
description Electrochemical behavior of pesticides is extensively studied, but little attention has been given to the study of their degradation products (by-products) by electrochemical methods. However, the degradation products of pesticides can be even more toxic then the parent products and such studies should be encouraged. Therefore, the objective of this work was to evaluate the electroactivity of by-products of imazaquin, methylparathion, bentazon and atrazine, generated by UV irradiation and measured using cyclic and differential pulse voltammetry and UV-visible absorption spectrophotometry. Results have shown that several by-products exhibit electroactivity, allowing, in some cases, the simultaneous determination of both parent and degradation products.
publishDate 2008
dc.date.none.fl_str_mv 2008-01-01
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=S0100-40422008000600007
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000600007
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0100-40422008000600007
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.31 n.6 2008
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
_version_ 1750318107954511872

Registros relacionados