Examinando por Materia "Pesticidas"
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- PublicaciónAcceso abiertoDetección de imidacloprid y timerosal usando electrodos serigrafíados de carbono(Universidad de Ibagué., 2019) Paez Quintero, Joan Sebastian; Nagles, Edgar Orlando; García Beltrán, OlimpoIn this Project, an electrochemical device unmodified was developed, it was of low instrumental cost, easy use and application, selective and highly sensitive for the determination of imidacloprid and thimerosal fumigants. To characterize the electrode (SPCE), first it was taken into account its sensitivity by making measurements at different pH, determining that the most optimal pH for imidacloprid was 7.1 while for the thimerosal it was 4.5. It was used cyclic voltammetry techniques, the effective variables were studied in the electrode such as scanning speed, accumulation potential and accumulation time. This unmodified electrode (SPCE) showed good repeatability, excellent selectivity and high sensitivity.
- PublicaciónRestringidoIdentificación de pesticidas en cultivos de arroz mediante técnicas cromatográficas.(Universidad de Ibagué., 2018) Quiroga Gutiérrez, Yennifer Andrea; García Beltrán, Olimpo José; Nagles, Edgar