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  • This study investigates an easy approach for the amperometric determination of sulfide using a quercetin modified carbon paste electrode (QH2/CPE). The results from experiments show that QH2/CPE significantly enhances the electrocatalytic activity towards sulfide oxidation. Cyclic voltammetric studies show that the peak potential of sulphide shifted from +375 mV at unmodified CPE to +175 mV at QH2/CPE at optimal condition. The currents obtained from amperometric measurements were linearly correlated with the concentration of sulfide. Calibration curve was obtained for sulfide concentrations in the range of 0.1 - 100 ?M. The detection limit was found to be 0.03 ?M for the amperometric method. The proposed method was successfully applied to Labe River water sample in Pardubice, Czech Republic. Finally, results from sulfide measurements by QH2/CPE were in good agreement with those obtained from the spectrophotometric method.
  • This study investigates an easy approach for the amperometric determination of sulfide using a quercetin modified carbon paste electrode (QH2/CPE). The results from experiments show that QH2/CPE significantly enhances the electrocatalytic activity towards sulfide oxidation. Cyclic voltammetric studies show that the peak potential of sulphide shifted from +375 mV at unmodified CPE to +175 mV at QH2/CPE at optimal condition. The currents obtained from amperometric measurements were linearly correlated with the concentration of sulfide. Calibration curve was obtained for sulfide concentrations in the range of 0.1 - 100 ?M. The detection limit was found to be 0.03 ?M for the amperometric method. The proposed method was successfully applied to Labe River water sample in Pardubice, Czech Republic. Finally, results from sulfide measurements by QH2/CPE were in good agreement with those obtained from the spectrophotometric method. (en)
Title
  • Amperometric Determination of Sulfide Using Qercetin Modified Carbon Paste Electrode
  • Amperometric Determination of Sulfide Using Qercetin Modified Carbon Paste Electrode (en)
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  • Amperometric Determination of Sulfide Using Qercetin Modified Carbon Paste Electrode
  • Amperometric Determination of Sulfide Using Qercetin Modified Carbon Paste Electrode (en)
skos:notation
  • RIV/00216275:25310/13:39897430!RIV14-MSM-25310___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • I, S
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
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  • 60253
http://linked.open...ai/riv/idVysledku
  • RIV/00216275:25310/13:39897430
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  • amperometry; quercetin; carbon paste electrode; Sulfide (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [9EA1126F12C6]
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  • Ovčárna pod Pradědem
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  • Pardubice
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  • Monitorování cizorodých látek v životním prostředí XV., sborník příspěvků ze semináře
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http://linked.open...ichTvurcuVysledku
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  • Vu, Dai Long
  • Červenka, Libor
http://linked.open...vavai/riv/typAkce
http://linked.open.../riv/zahajeniAkce
number of pages
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  • Univerzita Pardubice
https://schema.org/isbn
  • 978-80-7395-683-7
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  • 25310
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