The preparation and sensor application of poly(p-aminophenol)
Küçük Resim Yok
Tarih
1996
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Vch Publishers Inc
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
An amperometric biosensor for glucose based on a novel polymeric matrix is described. The sensor was prepared by electrochemical polymerization of p-aminophenol in the presence of glucose oxidase on Pt substrates in a KCl solution at a potential of 0.6 V (vs. Ag/AgCl). The chronoamperometric response of poly(p-aminophenol)-glucose oxidase biosensor to hydrogen peroxide formed as the result of enzymatic reaction was measured at a potential of 0.7 V (vs. Ag/AgCl) in PBS solution. It was shown that a biosensor prepared by this onestep procedure has a linear range up to 6 mM glucose, a response time less than 5 s and a lifetime around 15 days. The sensitivity of the electrode was superior to that of much publicized polypyrrole based glucose oxidase electrode. Also, the substrate selectivity of PAP/GOx electrode was tested for coexisting substances such as lactose, sucrose, urea, paracetamol, uric and ascorbic acid and no discernible anodic response was observed above the background current.
Açıklama
Anahtar Kelimeler
glucose, glucose oxidase, poly(p-aminophenol), enzyme electrode, amperometric biosensor
Kaynak
Electroanalysis
WoS Q Değeri
N/A
Scopus Q Değeri
N/A
Cilt
8
Sayı
6
