Pregled bibliografske jedinice broj: 583526
Amperometric Uric Acid Biosensor with Improved Analytical Performances Based on Alkaline-Stable H2O2 Transducer
Amperometric Uric Acid Biosensor with Improved Analytical Performances Based on Alkaline-Stable H2O2 Transducer // International Journal of Electrochemical Science, 7 (2012), 4; 3252-3264 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 583526 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Amperometric Uric Acid Biosensor with Improved Analytical Performances Based on Alkaline-Stable H2O2 Transducer
Autori
Iveković, Damir ; Japec, Matea ; Solar, Matea ; Živković, Nataša
Izvornik
International Journal of Electrochemical Science (1452-3981) 7
(2012), 4;
3252-3264
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
uric acid; biosensor; Prussian blue; hydrogen peroxide; alkaline medium
Sažetak
Electrodes modified with Prussian blue containing structurally incorporated Ni2+ ions were employed as the alkaline-stable H2O2 transducers in amperometric uric acid biosensors based on urate oxidase. The employed H2O2 transducers enabled operation of the biosensor at low cathodic potentials and in mild alkaline media, near the optimal pH of urate oxidase. At the pH value of 9.0 and working potential of –0.05 V, the biosensor exhibited a linear response towards uric acid in the concentration range of 2.5 to 200 μM, with the sensitivity of 26.9±0.4 mAM–1cm–2 and detection limit of 0.65 μM. The biosensor was successfully applied for determination of uric acid in samples of commercial dairy products.
Izvorni jezik
Engleski
Znanstvena područja
Kemija
POVEZANOST RADA
Ustanove:
Prehrambeno-biotehnološki fakultet, Zagreb
Profili:
Damir Iveković
(autor)
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
