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Statements

Subject Item
n2:RIV%2F61989592%3A15310%2F12%3A33142181%21RIV13-MSM-15310___
rdf:type
skos:Concept n14:Vysledek
dcterms:description
The performances of ionic liquid (1-hexyl-3-methylimidazolium-bis(trifluoromethylsulfonyl)imide, IL/CPE) and iron phthalocyanine (IP/CPE) modified carbon paste electrodes in electroanalytical determinations of rutin were evaluated and compared to the performance of unmodified carbon paste electrode (CPE). Cyclic voltammetry (CV), differential pulse voltammetry (DPV), differential pulse adsorptive stripping voltammetry (DPAdSV), and amperometry were used for rutin analysis. The best current responses of rutin were obtained at pH4.0 for all tested techniques. IL/CPE electrode was found to perform best with DPAdSV technique, where a detection limit (LOD) as low as 5 nmol L-1 of rutin was found. On the other hand, IP/CPE showed itself to be an optimum choice for DPV technique, where LOD of 80 nmol L-1 was obtained. Analytical applicability of newly prepared electrodes was demonstrated on determination of rutin in the model samples and the extracts of buckwheat seeds. To find an optimum method for buckwheat seeds extraction, a boiling water extraction (BWE), Soxhlet extraction (SE), pressurized solvent extraction (PSE), and supercritical fluid extraction (SFE) were tested. The performances of ionic liquid (1-hexyl-3-methylimidazolium-bis(trifluoromethylsulfonyl)imide, IL/CPE) and iron phthalocyanine (IP/CPE) modified carbon paste electrodes in electroanalytical determinations of rutin were evaluated and compared to the performance of unmodified carbon paste electrode (CPE). Cyclic voltammetry (CV), differential pulse voltammetry (DPV), differential pulse adsorptive stripping voltammetry (DPAdSV), and amperometry were used for rutin analysis. The best current responses of rutin were obtained at pH4.0 for all tested techniques. IL/CPE electrode was found to perform best with DPAdSV technique, where a detection limit (LOD) as low as 5 nmol L-1 of rutin was found. On the other hand, IP/CPE showed itself to be an optimum choice for DPV technique, where LOD of 80 nmol L-1 was obtained. Analytical applicability of newly prepared electrodes was demonstrated on determination of rutin in the model samples and the extracts of buckwheat seeds. To find an optimum method for buckwheat seeds extraction, a boiling water extraction (BWE), Soxhlet extraction (SE), pressurized solvent extraction (PSE), and supercritical fluid extraction (SFE) were tested.
dcterms:title
Electrochemical Behavior and Determination of Rutin on Modified Carbon Paste Electrodes Electrochemical Behavior and Determination of Rutin on Modified Carbon Paste Electrodes
skos:prefLabel
Electrochemical Behavior and Determination of Rutin on Modified Carbon Paste Electrodes Electrochemical Behavior and Determination of Rutin on Modified Carbon Paste Electrodes
skos:notation
RIV/61989592:15310/12:33142181!RIV13-MSM-15310___
n14:predkladatel
n15:orjk%3A15310
n4:aktivita
n18:Z n18:P
n4:aktivity
P(ED2.1.00/03.0058), Z(MSM6198959216)
n4:cisloPeriodika
394756
n4:dodaniDat
n6:2013
n4:domaciTvurceVysledku
n5:2670003 n5:8419647 n5:1077074 n5:3166309 n5:2942356
n4:druhVysledku
n20:J
n4:duvernostUdaju
n17:S
n4:entitaPredkladatele
n11:predkladatel
n4:idSjednocenehoVysledku
133851
n4:idVysledku
RIV/61989592:15310/12:33142181
n4:jazykVysledku
n7:eng
n4:klicovaSlova
sensors; oxidation; quercetin; reduction; polyphenols; chromatography; prussian-blue; ascorbic-acid; hydrogen-peroxide; ionic liquid
n4:klicoveSlovo
n9:ionic%20liquid n9:quercetin n9:prussian-blue n9:reduction n9:chromatography n9:hydrogen-peroxide n9:sensors n9:polyphenols n9:oxidation n9:ascorbic-acid
n4:kodStatuVydavatele
US - Spojené státy americké
n4:kontrolniKodProRIV
[BE5E02C9AEDD]
n4:nazevZdroje
The Scientific World Journal
n4:obor
n12:CB
n4:pocetDomacichTvurcuVysledku
5
n4:pocetTvurcuVysledku
5
n4:projekt
n19:ED2.1.00%2F03.0058
n4:rokUplatneniVysledku
n6:2012
n4:svazekPeriodika
2012
n4:tvurceVysledku
Skopalová, Jana Hrbáč, Jan Barták, Petr Macíková, Pavla Halouzka, Vladimír
n4:wos
000305125900001
n4:zamer
n21:MSM6198959216
s:issn
1537-744X
s:numberOfPages
9
n16:doi
10.1100/2012/394756
n10:organizacniJednotka
15310