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2012 | 10 | 5 | 1609-1616
Tytuł artykułu

Voltammetric determination of Rutin at Screen-Printed carbon disposable electrodes

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Rutin is a flavonoid commonly employed for many therapeutic purposes. Although the electroactive phenolic groups of rutin might be oxidized at low applied potential, the adsorption of oxidized species changes the electrode surface. As a consequence, the repeatability and reproducibility of the method decreases, which limits electroanalytical applications. This paper describes the use of disposable screen-printed electrodes as an alternative to improve the electrochemical quantification of rutin in commercial and standard samples. The electrochemical behavior was consistent to what is observed using other carbon electrodes: an adsorption-involved step and a pH-dependent oxidation process. The replacement of the electrodes between the analyses ensured rapid analysis, good intermediate precision and repeatability. The proposed method was successfully applied to rutin determination in pharmaceutical samples of capsules, with the limit of quantification being 0.30 µM. [...]
Słowa kluczowe
Wydawca

Czasopismo
Rocznik
Tom
10
Numer
5
Strony
1609-1616
Opis fizyczny
Daty
wydano
2012-10-01
online
2012-07-21
Twórcy
  • Faculty of Pharmacy, Federal University of Goias, Goiânia-GO, 74.605-220, Brazil
autor
  • Faculty of Pharmacy, Federal University of Goias, Goiânia-GO, 74.605-220, Brazil
  • Faculty of Pharmacy, Federal University of Goias, Goiânia-GO, 74.605-220, Brazil
  • Faculty of Pharmacy, Federal University of Goias, Goiânia-GO, 74.605-220, Brazil
autor
  • Faculty of Pharmacy, Federal University of Goias, Goiânia-GO, 74.605-220, Brazil
autor
  • Faculty of Pharmacy, Federal University of Goias, Goiânia-GO, 74.605-220, Brazil, ericsgil@gmail.com
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_s11532-012-0093-3
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