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2010 | 8 | 5 | 1034-1040
Tytuł artykułu

Screen-printed electrodes modified with HRP-zirconium alcoxide film for the development of a biosensor for acetaminophen detection

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The development of a biosensor based on the immobilization of horseradish peroxidase (HRP) within a zirconium alkoxide-polyetilenimine film onto screen-printed electrodes (SPE) for acetaminophen detection and acetaminophen quantification in pharmaceutical products is described. The biosensor operation mode is based on monitoring the amperometric signal produced by the electrochemical reduction of the enzymatically generated electroactive oxidized species of acetaminophen in the presence of hydrogen peroxide. The enzyme immobilization is performed by retention in a polyethylenimine-zirconium alcoxide porous gel film, a technique that offers good entrapping and a protective environment for the biocomponent due to the hydration properties of the immobilization layer. SPEs have the advantage of being easily mass-produced at low costs with superior characteristics in comparison with classical electrode materials. In this configuration, zirconium alkoxide demonstrates its electrocatalytic activity. The biosensor allows the quantification of acetaminophen with a limit of detection of 6.21×10−8 M and a linear range between 4.35×10−7 M and 4.98×10−6 M. Finally, the biosensor is applied to the quantitative analysis of acetaminophen in Perdolan® tablets. [...]
Wydawca

Czasopismo
Rocznik
Tom
8
Numer
5
Strony
1034-1040
Opis fizyczny
Daty
wydano
2010-10-01
online
2010-09-05
Twórcy
  • Analytical Chemistry Department, Faculty of Pharmacy, “IULIU HAŢIEGANU” University of Medicine and Pharmacy, Cluj-Napoca, 400349, Romania
  • Analytical Chemistry Department, Faculty of Pharmacy, “IULIU HAŢIEGANU” University of Medicine and Pharmacy, Cluj-Napoca, 400349, Romania
autor
  • Analytical Chemistry Department, Faculty of Pharmacy, “IULIU HAŢIEGANU” University of Medicine and Pharmacy, Cluj-Napoca, 400349, Romania
  • Analytical Chemistry Department, Faculty of Pharmacy, “IULIU HAŢIEGANU” University of Medicine and Pharmacy, Cluj-Napoca, 400349, Romania
  • Analytical Chemistry Department, Faculty of Pharmacy, “IULIU HAŢIEGANU” University of Medicine and Pharmacy, Cluj-Napoca, 400349, Romania, rsandulescu@umfcluj.ro
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_s11532-010-0070-7
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