Antimony film electrode for chronopotentiometric determination of insecticide imidacloprid
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The most important experimental parameters were investigated for chronopotentiometric
determination of imidacloprid using thin film antimony electrode as a working electrode. The
film of antimony was ex-sifu plated on the glassy carbon electrode. Britton-Robinson buffer
pH 10 was used as an optimal supporting electrolyte, where imidacloprid provided a well
define and reproductive reduction signal at the potential of -1100 mV (vs. Ag/AgCl, 3.5
mol/dm’* KCI). Based on the height and reproducibility of the analytical signal, initial potential
of -0.51 V was accepted as optimal, while selected optimal ranges of reduction current were
from -5 pA to -14.4 pA, and from -4.6 pA to -18.2 pA, for concentrations of 2 mg/dm” and 10
mg/dm°*, respectively. It was determined that analytical signal of imidacloprid decreased
exponentially with more negative values of reduction current. Before application of this
method to environmental samples. additional experiments related to method validat...ion are
necessary.
Keywords:
imidacloprid / antimonySource:
23rd International Symposium on Analytical and Environmental Problems, Szeged, Hungary, 2017, 160-164Publisher:
- Szeged : University of Szeged, Department of Inorganic and Analytical Chemistry
Funding / projects:
- Improvement and development of hygienic and technological procedures in production of animal originating foodstuffs with the aim of producing high-quality and safe products competetive on the global market (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-46009)
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FiVeRTY - CONF AU - Đurović, A. AU - Stojanović, Z. AU - Kravić, S. AU - Suturović, Z. AU - Grahovac, Nada PY - 2017 UR - http://fiver.ifvcns.rs/handle/123456789/3687 AB - The most important experimental parameters were investigated for chronopotentiometric determination of imidacloprid using thin film antimony electrode as a working electrode. The film of antimony was ex-sifu plated on the glassy carbon electrode. Britton-Robinson buffer pH 10 was used as an optimal supporting electrolyte, where imidacloprid provided a well define and reproductive reduction signal at the potential of -1100 mV (vs. Ag/AgCl, 3.5 mol/dm’* KCI). Based on the height and reproducibility of the analytical signal, initial potential of -0.51 V was accepted as optimal, while selected optimal ranges of reduction current were from -5 pA to -14.4 pA, and from -4.6 pA to -18.2 pA, for concentrations of 2 mg/dm” and 10 mg/dm°*, respectively. It was determined that analytical signal of imidacloprid decreased exponentially with more negative values of reduction current. Before application of this method to environmental samples. additional experiments related to method validation are necessary. PB - Szeged : University of Szeged, Department of Inorganic and Analytical Chemistry C3 - 23rd International Symposium on Analytical and Environmental Problems, Szeged, Hungary T1 - Antimony film electrode for chronopotentiometric determination of insecticide imidacloprid EP - 164 SP - 160 UR - https://hdl.handle.net/21.15107/rcub_fiver_3687 ER -
@conference{ author = "Đurović, A. and Stojanović, Z. and Kravić, S. and Suturović, Z. and Grahovac, Nada", year = "2017", abstract = "The most important experimental parameters were investigated for chronopotentiometric determination of imidacloprid using thin film antimony electrode as a working electrode. The film of antimony was ex-sifu plated on the glassy carbon electrode. Britton-Robinson buffer pH 10 was used as an optimal supporting electrolyte, where imidacloprid provided a well define and reproductive reduction signal at the potential of -1100 mV (vs. Ag/AgCl, 3.5 mol/dm’* KCI). Based on the height and reproducibility of the analytical signal, initial potential of -0.51 V was accepted as optimal, while selected optimal ranges of reduction current were from -5 pA to -14.4 pA, and from -4.6 pA to -18.2 pA, for concentrations of 2 mg/dm” and 10 mg/dm°*, respectively. It was determined that analytical signal of imidacloprid decreased exponentially with more negative values of reduction current. Before application of this method to environmental samples. additional experiments related to method validation are necessary.", publisher = "Szeged : University of Szeged, Department of Inorganic and Analytical Chemistry", journal = "23rd International Symposium on Analytical and Environmental Problems, Szeged, Hungary", title = "Antimony film electrode for chronopotentiometric determination of insecticide imidacloprid", pages = "164-160", url = "https://hdl.handle.net/21.15107/rcub_fiver_3687" }
Đurović, A., Stojanović, Z., Kravić, S., Suturović, Z.,& Grahovac, N.. (2017). Antimony film electrode for chronopotentiometric determination of insecticide imidacloprid. in 23rd International Symposium on Analytical and Environmental Problems, Szeged, Hungary Szeged : University of Szeged, Department of Inorganic and Analytical Chemistry., 160-164. https://hdl.handle.net/21.15107/rcub_fiver_3687
Đurović A, Stojanović Z, Kravić S, Suturović Z, Grahovac N. Antimony film electrode for chronopotentiometric determination of insecticide imidacloprid. in 23rd International Symposium on Analytical and Environmental Problems, Szeged, Hungary. 2017;:160-164. https://hdl.handle.net/21.15107/rcub_fiver_3687 .
Đurović, A., Stojanović, Z., Kravić, S., Suturović, Z., Grahovac, Nada, "Antimony film electrode for chronopotentiometric determination of insecticide imidacloprid" in 23rd International Symposium on Analytical and Environmental Problems, Szeged, Hungary (2017):160-164, https://hdl.handle.net/21.15107/rcub_fiver_3687 .