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https://open.uns.ac.rs/handle/123456789/11581
Назив: | Voltammetric monitoring of photodegradation of Clothianidin, Nitenpyram and Imidacloprid insecticides using a tricresyl phosphate-based carbon paste electrode | Аутори: | Papp Z. Guzvanj (Guzsvány), V. Švancara I. Vytřas K. |
Датум издавања: | 1-нов-2011 | Часопис: | International Journal of Electrochemical Science | Сажетак: | A voltammetric investigation of two commercial neonicotinoid insecticides, Clothianidin (Clo) and Nitenpyram (Nit), was carried out and completed with the third one, Imidacloprid (Imc), from a previous study when using two different types of carbon paste electrodes made from graphite powder and silicone oil (SO-CPE) or tricresyl phosphate as the binder (TCP-CPE). For all substances of interest, the latter has been found superior with respect to the signal-to-noise characteristics and the overal electroanalytical performance. Subsequently, a new method employing the direct differential pulse voltammetry (DPV) and the TCP-CPE has been proposed for the determination of Clo and Nit at the low μg mL -1 concentration level; all the key parameters being applicable also to Imc. Finally, the procedure combining DPV with the TCP-CPE could be applied for the monitoring of the photolytic and TiO 2-assisted photocatalytic degradation of Clo, Nit, and Imc via their voltammetrically detectable disappearance, when the quantitative and kinetic data obtained have agreed well with the results of the reference HPLC/DAD measurements. © 2011 by ESG. | URI: | https://open.uns.ac.rs/handle/123456789/11581 |
Налази се у колекцијама: | PMF Publikacije/Publications |
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