Effect of copper ions on the degradation of thiram in aqueous solution: identification of degradation products by HPLC–MS/MS
Autor(a) principal: | |
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Data de Publicação: | 2014 |
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/10316/27851 https://doi.org/10.1016/j.jhazmat.2014.06.051 |
Resumo: | The aim of this work was to examine the effect of Cu(II) on the degradation of thiram (Thi) in aqueous solutions, since the literature focused on this effect is scarce and copper based fungicides can be applied together with thiram or during the same season to agricultural crops. The effect of Cu(II) on the degradation of thiram was followed by both UV–vis and HPLC–MS/MS. When thiram is dissolved in pure water its degradation occurs very slowly, being negligible during the first 7 days. However, the presence of Cu(II) has a strong influence on the thiram degradation in aqueous solutions along time. In the presence of an excess of Cu(II), a [CuThi]2+ complex is initially formed which degrades into a complex formed between the dimethyldithiocarbamate anion (DMDTC) and Cu(II) ion, [Cu(DMDTC)]+. This complex further degrades leading to other copper complexes which were identified for the first time, by MSn. The results obtained in the present work also demonstrated that a redox reaction involving DMDTC anions and Cu(II) ions gives rise to the formation of a Thi–Cu(I) complex. Finally, some of the complexes resulting from the degradation of [CuThi]2+ are quite persistent in solution for long periods of time (>1 month). |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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7160 |
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Effect of copper ions on the degradation of thiram in aqueous solution: identification of degradation products by HPLC–MS/MSThiram degradationCopper ionsDimethyldithiocarbamateAqueous solutionsUV–vis spectrophotometryHPLC-UV–MSnThe aim of this work was to examine the effect of Cu(II) on the degradation of thiram (Thi) in aqueous solutions, since the literature focused on this effect is scarce and copper based fungicides can be applied together with thiram or during the same season to agricultural crops. The effect of Cu(II) on the degradation of thiram was followed by both UV–vis and HPLC–MS/MS. When thiram is dissolved in pure water its degradation occurs very slowly, being negligible during the first 7 days. However, the presence of Cu(II) has a strong influence on the thiram degradation in aqueous solutions along time. In the presence of an excess of Cu(II), a [CuThi]2+ complex is initially formed which degrades into a complex formed between the dimethyldithiocarbamate anion (DMDTC) and Cu(II) ion, [Cu(DMDTC)]+. This complex further degrades leading to other copper complexes which were identified for the first time, by MSn. The results obtained in the present work also demonstrated that a redox reaction involving DMDTC anions and Cu(II) ions gives rise to the formation of a Thi–Cu(I) complex. Finally, some of the complexes resulting from the degradation of [CuThi]2+ are quite persistent in solution for long periods of time (>1 month).Elsevier2014-08-30info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/27851http://hdl.handle.net/10316/27851https://doi.org/10.1016/j.jhazmat.2014.06.051engFILIPE, Olga M. S. [et. al] - Effect of copper ions on the degradation of thiram in aqueous solution: identification of degradation products by HPLC–MS/MS. "Journal of Hazardous Materials". ISSN 0304-3894. Vol. 279 (2014) p. 125–1320304-3894http://www.sciencedirect.com/science/article/pii/S0304389414005305Filipe, Olga M. S.Santos, Sónia A. O.Domingues, M. Rosário M.Vidal, Maria M.Silvestre, Armando J. D.Santos, Eduarda B. H.info: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:RCAAP2021-11-09T11:34:48Zoai:estudogeral.uc.pt:10316/27851Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:01:48.828719Repositório 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 |
Effect of copper ions on the degradation of thiram in aqueous solution: identification of degradation products by HPLC–MS/MS |
title |
Effect of copper ions on the degradation of thiram in aqueous solution: identification of degradation products by HPLC–MS/MS |
spellingShingle |
Effect of copper ions on the degradation of thiram in aqueous solution: identification of degradation products by HPLC–MS/MS Filipe, Olga M. S. Thiram degradation Copper ions Dimethyldithiocarbamate Aqueous solutions UV–vis spectrophotometry HPLC-UV–MSn |
title_short |
Effect of copper ions on the degradation of thiram in aqueous solution: identification of degradation products by HPLC–MS/MS |
title_full |
Effect of copper ions on the degradation of thiram in aqueous solution: identification of degradation products by HPLC–MS/MS |
title_fullStr |
Effect of copper ions on the degradation of thiram in aqueous solution: identification of degradation products by HPLC–MS/MS |
title_full_unstemmed |
Effect of copper ions on the degradation of thiram in aqueous solution: identification of degradation products by HPLC–MS/MS |
title_sort |
Effect of copper ions on the degradation of thiram in aqueous solution: identification of degradation products by HPLC–MS/MS |
author |
Filipe, Olga M. S. |
author_facet |
Filipe, Olga M. S. Santos, Sónia A. O. Domingues, M. Rosário M. Vidal, Maria M. Silvestre, Armando J. D. Santos, Eduarda B. H. |
author_role |
author |
author2 |
Santos, Sónia A. O. Domingues, M. Rosário M. Vidal, Maria M. Silvestre, Armando J. D. Santos, Eduarda B. H. |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Filipe, Olga M. S. Santos, Sónia A. O. Domingues, M. Rosário M. Vidal, Maria M. Silvestre, Armando J. D. Santos, Eduarda B. H. |
dc.subject.por.fl_str_mv |
Thiram degradation Copper ions Dimethyldithiocarbamate Aqueous solutions UV–vis spectrophotometry HPLC-UV–MSn |
topic |
Thiram degradation Copper ions Dimethyldithiocarbamate Aqueous solutions UV–vis spectrophotometry HPLC-UV–MSn |
description |
The aim of this work was to examine the effect of Cu(II) on the degradation of thiram (Thi) in aqueous solutions, since the literature focused on this effect is scarce and copper based fungicides can be applied together with thiram or during the same season to agricultural crops. The effect of Cu(II) on the degradation of thiram was followed by both UV–vis and HPLC–MS/MS. When thiram is dissolved in pure water its degradation occurs very slowly, being negligible during the first 7 days. However, the presence of Cu(II) has a strong influence on the thiram degradation in aqueous solutions along time. In the presence of an excess of Cu(II), a [CuThi]2+ complex is initially formed which degrades into a complex formed between the dimethyldithiocarbamate anion (DMDTC) and Cu(II) ion, [Cu(DMDTC)]+. This complex further degrades leading to other copper complexes which were identified for the first time, by MSn. The results obtained in the present work also demonstrated that a redox reaction involving DMDTC anions and Cu(II) ions gives rise to the formation of a Thi–Cu(I) complex. Finally, some of the complexes resulting from the degradation of [CuThi]2+ are quite persistent in solution for long periods of time (>1 month). |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-08-30 |
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/10316/27851 http://hdl.handle.net/10316/27851 https://doi.org/10.1016/j.jhazmat.2014.06.051 |
url |
http://hdl.handle.net/10316/27851 https://doi.org/10.1016/j.jhazmat.2014.06.051 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
FILIPE, Olga M. S. [et. al] - Effect of copper ions on the degradation of thiram in aqueous solution: identification of degradation products by HPLC–MS/MS. "Journal of Hazardous Materials". ISSN 0304-3894. Vol. 279 (2014) p. 125–132 0304-3894 http://www.sciencedirect.com/science/article/pii/S0304389414005305 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
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 |
repository.mail.fl_str_mv |
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1799133908792508416 |