E-viri
Recenzirano
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Çubukçu, Meliha; Timur, Suna; Anik, Ülkü
Talanta (Oxford), 12/2007, Letnik: 74, Številka: 3Journal Article
A composite electrode was prepared by modifying glassy carbon microparticles with gold nanoparticles (Au-nps) and xanthine oxidase enzyme (XOD) for xanthine (X) and hypoxanthine (Hx) detection. After the optimization of the system for X, the biosensor was characterized for X and Hx. A linearity was obtained in the concentration range between 5.00 × 10 −7 and 1.00 × 10 −5 M for X with equation of y = 0.24 x + 0.712 and 5.00 × 10 −6 to 1.50 × 10 −4 M for Hx, with equation of y = 0.014 x + 0.575, respectively. Obtained results were compared to X and/or Hx biosensors including/not including Au-np in the structure. The developed system was also applied for detection of Hx in canned tuna fish sample and very promising results were obtained.
