Sequential injection spectrophotometric method for screening bromate produced as an ozonation water disinfection by-product
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , |
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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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 |
dc.format.none.fl_str_mv |
application/pdf |
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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1799132023859707904 |