Dissipation of the insecticides pirimiphos-methyl and dichlorvos in stored maize (Zea mays L.) grains
The aim of this work was to analyze the dissipation dynamics of the insecticides pirimiphos- methyl and dichlorvos in maize (Zea mays L.) grains after post-harvest spray applications. The recommendations for their use for Argentina and the Maximum Residue Limits (MRLs) established by local and inte...
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| Formato: | Online |
| Lenguaje: | eng |
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Facultad de Ciencias Agrarias-UNCuyo
2020
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| Acceso en línea: | https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/4118 |
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Revistas en línea |
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Revista de la Facultad de Ciencias Agrarias |
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Revista de la Facultad de Ciencias Agrarias |
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R-107 |
| language |
eng |
| format |
Online |
| author |
Strada, Julieta Bruno, Cecilia Rojas, Dante Cristos, Diego Nassetta, Mirtha Balzarini, Mónica Conles, Martha Ricca, Alejandra Martinez, María José |
| spellingShingle |
Strada, Julieta Bruno, Cecilia Rojas, Dante Cristos, Diego Nassetta, Mirtha Balzarini, Mónica Conles, Martha Ricca, Alejandra Martinez, María José Dissipation of the insecticides pirimiphos-methyl and dichlorvos in stored maize (Zea mays L.) grains Curvas de disipación Límite Máximo de Residuos insecticidas organofosforados pirimifós-metil diclorvós Dissipation curves Maximum Residue Limit organophosphorus insecticides pirimiphos-methyl dichlorvos |
| author_facet |
Strada, Julieta Bruno, Cecilia Rojas, Dante Cristos, Diego Nassetta, Mirtha Balzarini, Mónica Conles, Martha Ricca, Alejandra Martinez, María José |
| author_sort |
Strada, Julieta |
| title |
Dissipation of the insecticides pirimiphos-methyl and dichlorvos in stored maize (Zea mays L.) grains |
| title_short |
Dissipation of the insecticides pirimiphos-methyl and dichlorvos in stored maize (Zea mays L.) grains |
| title_full |
Dissipation of the insecticides pirimiphos-methyl and dichlorvos in stored maize (Zea mays L.) grains |
| title_fullStr |
Dissipation of the insecticides pirimiphos-methyl and dichlorvos in stored maize (Zea mays L.) grains |
| title_full_unstemmed |
Dissipation of the insecticides pirimiphos-methyl and dichlorvos in stored maize (Zea mays L.) grains |
| title_sort |
dissipation of the insecticides pirimiphos-methyl and dichlorvos in stored maize (zea mays l.) grains |
| description |
The aim of this work was to analyze the dissipation dynamics of the insecticides pirimiphos- methyl and dichlorvos in maize (Zea mays L.) grains after post-harvest spray applications. The recommendations for their use for Argentina and the Maximum Residue Limits (MRLs) established by local and international pesticide regulations were considered. Supervised experimental trials were conducted in stored maize grains treated with 10 cc.t-1 of pirimiphos-methyl and 20 cc.t-1 of dichlorvos. Samples were monitored 2, 30, 60, 90 and 120 days after application. The pesticides were extracted from the maize grains using the QuEChERS technique and the residues were determined using high-resolution gas chromatography with mass detector. Residue dissipation percentages and daily dissipation rates differed between active ingredients. At 48 hours after application, pirimiphos-methyl residues were 5.1±0.42 µg.g-1, i.e. below the MRLs established by the Argentine Service for Agrifood Health and Quality (10 µg.g-1), the USA (8 µg.g-1) and the Codex Alimentarius (7 µg.g-1), and close to the MRLs established by the EU (5 µg.g-1). Dichlorvos residues reached 2.97±0.27 µg.g-1, and required at least a 90-day withholding period to be lower than the MRLs of the EU.
Highligths
Pirimiphos-methyl residues had high dissipation in stored maize grains.
Dichlorvos insecticides in stored maize required more time withholding period than Pirimiphos-metyl to be lower than de MRLs of the EU.
Organophosphorus insecticide residues were below the MRL of the Codex Alimentarius.
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| publisher |
Facultad de Ciencias Agrarias-UNCuyo |
| publishDate |
2020 |
| url |
https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/4118 |
| topic |
Curvas de disipación Límite Máximo de Residuos insecticidas organofosforados pirimifós-metil diclorvós Dissipation curves Maximum Residue Limit organophosphorus insecticides pirimiphos-methyl dichlorvos |
| topic_facet |
Curvas de disipación Límite Máximo de Residuos insecticidas organofosforados pirimifós-metil diclorvós Dissipation curves Maximum Residue Limit organophosphorus insecticides pirimiphos-methyl dichlorvos |
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I11-R107article-41182020-12-04T21:59:31Z Dissipation of the insecticides pirimiphos-methyl and dichlorvos in stored maize (Zea mays L.) grains Dissipation of the insecticides pirimiphos-methyl and dichlorvos in stored maize (Zea mays L.) grains Strada, Julieta Bruno, Cecilia Rojas, Dante Cristos, Diego Nassetta, Mirtha Balzarini, Mónica Conles, Martha Ricca, Alejandra Martinez, María José Curvas de disipación Límite Máximo de Residuos insecticidas organofosforados pirimifós-metil diclorvós Dissipation curves Maximum Residue Limit organophosphorus insecticides pirimiphos-methyl dichlorvos The aim of this work was to analyze the dissipation dynamics of the insecticides pirimiphos- methyl and dichlorvos in maize (Zea mays L.) grains after post-harvest spray applications. The recommendations for their use for Argentina and the Maximum Residue Limits (MRLs) established by local and international pesticide regulations were considered. Supervised experimental trials were conducted in stored maize grains treated with 10 cc.t-1 of pirimiphos-methyl and 20 cc.t-1 of dichlorvos. Samples were monitored 2, 30, 60, 90 and 120 days after application. The pesticides were extracted from the maize grains using the QuEChERS technique and the residues were determined using high-resolution gas chromatography with mass detector. Residue dissipation percentages and daily dissipation rates differed between active ingredients. At 48 hours after application, pirimiphos-methyl residues were 5.1±0.42 µg.g-1, i.e. below the MRLs established by the Argentine Service for Agrifood Health and Quality (10 µg.g-1), the USA (8 µg.g-1) and the Codex Alimentarius (7 µg.g-1), and close to the MRLs established by the EU (5 µg.g-1). Dichlorvos residues reached 2.97±0.27 µg.g-1, and required at least a 90-day withholding period to be lower than the MRLs of the EU. Highligths Pirimiphos-methyl residues had high dissipation in stored maize grains. Dichlorvos insecticides in stored maize required more time withholding period than Pirimiphos-metyl to be lower than de MRLs of the EU. Organophosphorus insecticide residues were below the MRL of the Codex Alimentarius. The aim of this work was to analyze the dissipation dynamics of the insecticides pirimiphos- methyl and dichlorvos in maize (Zea mays L.) grains after post-harvest spray applications. The recommendations for their use for Argentina and the Maximum Residue Limits (MRLs) established by local and international pesticide regulations were considered. Supervised experimental trials were conducted in stored maize grains treated with 10 cc.t-1 of pirimiphos-methyl and 20 cc.t-1 of dichlorvos. Samples were monitored 2, 30, 60, 90 and 120 days after application. The pesticides were extracted from the maize grains using the QuEChERS technique and the residues were determined using high-resolution gas chromatography with mass detector. Residue dissipation percentages and daily dissipation rates differed between active ingredients. At 48 hours after application, pirimiphos-methyl residues were 5.1±0.42 µg.g-1, i.e. below the MRLs established by the Argentine Service for Agrifood Health and Quality (10 µg.g-1), the USA (8 µg.g-1) and the Codex Alimentarius (7 µg.g-1), and close to the MRLs established by the EU (5 µg.g-1). Dichlorvos residues reached 2.97±0.27 µg.g-1, and required at least a 90-day withholding period to be lower than the MRLs of the EU. Highligths Pirimiphos-methyl residues had high dissipation in stored maize grains. Dichlorvos insecticides in stored maize required more time withholding period than Pirimiphos-metyl to be lower than de MRLs of the EU. Organophosphorus insecticide residues were below the MRL of the Codex Alimentarius. Facultad de Ciencias Agrarias-UNCuyo 2020-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/4118 Revista de la Facultad de Ciencias Agrarias UNCuyo; Vol. 52 No. 2 (2020): June-December; 405-414 Revista de la Facultad de Ciencias Agrarias UNCuyo; Vol. 52 Núm. 2 (2020): Julio-Diciembre; 405-414 1853-8665 0370-4661 eng https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/4118/2972 |
