caa a22 4500 463220307 CHVBK 20180405153210.0 cr unu---uuuuu 170326e20070501xx s 000 0 eng 10.1134/S1061934807050139 doi (NATIONALLICENCE)springer-10.1134/S1061934807050139 Erdoğdu G. Department of Chemistry, Faculty of Arts & Sciences, Inönü University, 44069, Malatya, Turkey aut Voltammetric study of the hydrolysis product of fenthion at the Nafion®-modified glassy carbon electrode [Elektronische Daten] [G. Erdoğdu] The differential pulse voltammetric (DPV) method is proposed for the determination of phosphorothioate insecticide (fenthion) based on the oxidation of its hydrolysis product. A single peak at +0.65 V (vs. Ag/AgCl) is observed at the Nafion®-modified glassy carbon electrode in 0.1 M Britton-Robinson buffer solution (pH 4.0) as a supporting electrolyte. The voltammetric behavior of fenthion was investigated over a wide range of pH (2.0-8.0). The effect of the solution and operational parameters on the sensitivity of the DPV peak was carefully examined in order to select the optimum conditions for the determination of fenthion. Under optimum conditions, the oxidation response gives a linear calibration plot over a concentration range of 8.41 × 10−7−5.98 × 10−6 M and the detection limit is found to be 7.6 × 10−7 M. The effects of some diverse metal ions, anions, and some other organic molecules on the determination of fenthion were studied. The applicability of DPV for the determination of fenthion insecticide in a commercial sample as well as in some water samples was demonstrated. Pleiades Publishing, Ltd., 2007 Journal of Analytical Chemistry Nauka/Interperiodica 62/5(2007-05-01), 466-469 1061-9348 62:5<466 2007 62 10809 https://doi.org/10.1134/S1061934807050139 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S1061934807050139 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Erdoğdu G. Department of Chemistry, Faculty of Arts & Sciences, Inönü University, 44069, Malatya, Turkey aut NATIONALLICENCE 773 0- Journal of Analytical Chemistry Nauka/Interperiodica 62/5(2007-05-01), 466-469 1061-9348 62:5<466 2007 62 10809 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer