Sequential injection spectrophotometric method for screening bromate produced as an ozonation water disinfection by-product

Detalhes bibliográficos
Autor(a) principal: Mesquita, Raquel B. R.
Data de Publicação: 2022
Outros Autores: Ferreira, Francisca T. S. M., Cerqueira, Ana, Rangel, António O. S. S.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.14/37191
Resumo: The aim of this work was the development of an automatic sequential injection analysis method to monitor the ozonation process for water disinfection. The determination was based on the reaction between bromate and o-dianisidine in the presence of bromide in acidic medium. The determination parameters were studied and adjusted to enable bromate quantification in the range 0.35-4.0 mg BrO3-/L with a limit of detection of 20 μg BrO3-/L. The choice of a sequential injection procedure enabled a minimal consumption of reagents and no need for sample pre-treatment. The developed sequential injection proved to be accurate with < 5% relative deviation when compared to ICP-MS and an average of 101% in recovery percentages studies. It was effectively applied to monitor an ozonation process enabling the follow-up of the process with real-time quantification of the bromate content.
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spelling Sequential injection spectrophotometric method for screening bromate produced as an ozonation water disinfection by-productBromate assessmentFlow analysisOzonation monitoringWater disinfection by-productsThe aim of this work was the development of an automatic sequential injection analysis method to monitor the ozonation process for water disinfection. The determination was based on the reaction between bromate and o-dianisidine in the presence of bromide in acidic medium. The determination parameters were studied and adjusted to enable bromate quantification in the range 0.35-4.0 mg BrO3-/L with a limit of detection of 20 μg BrO3-/L. The choice of a sequential injection procedure enabled a minimal consumption of reagents and no need for sample pre-treatment. The developed sequential injection proved to be accurate with < 5% relative deviation when compared to ICP-MS and an average of 101% in recovery percentages studies. It was effectively applied to monitor an ozonation process enabling the follow-up of the process with real-time quantification of the bromate content.Veritati - Repositório Institucional da Universidade Católica PortuguesaMesquita, Raquel B. R.Ferreira, Francisca T. S. M.Cerqueira, AnaRangel, António O. S. S.2022-03-30T10:31:43Z2022-01-012022-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.14/37191eng0910-634010.2116/analsci.21P1918512660783435287215000808474400016info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-23T01:41:49Zoai:repositorio.ucp.pt:10400.14/37191Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:30:14.659508Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Sequential injection spectrophotometric method for screening bromate produced as an ozonation water disinfection by-product
title Sequential injection spectrophotometric method for screening bromate produced as an ozonation water disinfection by-product
spellingShingle Sequential injection spectrophotometric method for screening bromate produced as an ozonation water disinfection by-product
Mesquita, Raquel B. R.
Bromate assessment
Flow analysis
Ozonation monitoring
Water disinfection by-products
title_short Sequential injection spectrophotometric method for screening bromate produced as an ozonation water disinfection by-product
title_full Sequential injection spectrophotometric method for screening bromate produced as an ozonation water disinfection by-product
title_fullStr Sequential injection spectrophotometric method for screening bromate produced as an ozonation water disinfection by-product
title_full_unstemmed Sequential injection spectrophotometric method for screening bromate produced as an ozonation water disinfection by-product
title_sort Sequential injection spectrophotometric method for screening bromate produced as an ozonation water disinfection by-product
author Mesquita, Raquel B. R.
author_facet Mesquita, Raquel B. R.
Ferreira, Francisca T. S. M.
Cerqueira, Ana
Rangel, António O. S. S.
author_role author
author2 Ferreira, Francisca T. S. M.
Cerqueira, Ana
Rangel, António O. S. S.
author2_role author
author
author
dc.contributor.none.fl_str_mv Veritati - Repositório Institucional da Universidade Católica Portuguesa
dc.contributor.author.fl_str_mv Mesquita, Raquel B. R.
Ferreira, Francisca T. S. M.
Cerqueira, Ana
Rangel, António O. S. S.
dc.subject.por.fl_str_mv Bromate assessment
Flow analysis
Ozonation monitoring
Water disinfection by-products
topic Bromate assessment
Flow analysis
Ozonation monitoring
Water disinfection by-products
description The aim of this work was the development of an automatic sequential injection analysis method to monitor the ozonation process for water disinfection. The determination was based on the reaction between bromate and o-dianisidine in the presence of bromide in acidic medium. The determination parameters were studied and adjusted to enable bromate quantification in the range 0.35-4.0 mg BrO3-/L with a limit of detection of 20 μg BrO3-/L. The choice of a sequential injection procedure enabled a minimal consumption of reagents and no need for sample pre-treatment. The developed sequential injection proved to be accurate with < 5% relative deviation when compared to ICP-MS and an average of 101% in recovery percentages studies. It was effectively applied to monitor an ozonation process enabling the follow-up of the process with real-time quantification of the bromate content.
publishDate 2022
dc.date.none.fl_str_mv 2022-03-30T10:31:43Z
2022-01-01
2022-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.14/37191
url http://hdl.handle.net/10400.14/37191
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0910-6340
10.2116/analsci.21P191
85126607834
35287215
000808474400016
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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