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Statements

Subject Item
n2:RIV%2F00216275%3A25310%2F13%3A39897430%21RIV14-MSM-25310___
rdf:type
n17:Vysledek skos:Concept
dcterms:description
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.
dcterms:title
Amperometric Determination of Sulfide Using Qercetin Modified Carbon Paste Electrode Amperometric Determination of Sulfide Using Qercetin Modified Carbon Paste Electrode
skos:prefLabel
Amperometric Determination of Sulfide Using Qercetin Modified Carbon Paste Electrode Amperometric Determination of Sulfide Using Qercetin Modified Carbon Paste Electrode
skos:notation
RIV/00216275:25310/13:39897430!RIV14-MSM-25310___
n17:predkladatel
n18:orjk%3A25310
n4:aktivita
n11:S n11:I
n4:aktivity
I, S
n4:dodaniDat
n13:2014
n4:domaciTvurceVysledku
n6:7862105 Vu, Dai Long
n4:druhVysledku
n15:D
n4:duvernostUdaju
n21:S
n4:entitaPredkladatele
n14:predkladatel
n4:idSjednocenehoVysledku
60253
n4:idVysledku
RIV/00216275:25310/13:39897430
n4:jazykVysledku
n16:eng
n4:klicovaSlova
amperometry; quercetin; carbon paste electrode; Sulfide
n4:klicoveSlovo
n9:carbon%20paste%20electrode n9:Sulfide n9:amperometry n9:quercetin
n4:kontrolniKodProRIV
[9EA1126F12C6]
n4:mistoKonaniAkce
Ovčárna pod Pradědem
n4:mistoVydani
Pardubice
n4:nazevZdroje
Monitorování cizorodých látek v životním prostředí XV., sborník příspěvků ze semináře
n4:obor
n10:CG
n4:pocetDomacichTvurcuVysledku
2
n4:pocetTvurcuVysledku
2
n4:rokUplatneniVysledku
n13:2013
n4:tvurceVysledku
Červenka, Libor Vu, Dai Long
n4:typAkce
n5:CST
n4:zahajeniAkce
2013-04-10+02:00
s:numberOfPages
8
n19:hasPublisher
Univerzita Pardubice
n20:isbn
978-80-7395-683-7
n7:organizacniJednotka
25310