title: Electrochemically platinized carbon paste enzyme electrodes: a new design of amperometric glucose biosensors.
abstract: A platinized carbon paste prepared via electrodeposition had a preferential electrocatalytic action toward H(2)O(2). Therefore, we have developed a new amperometric glucose biosensor based on the immobilization of glucose oxidase on to the electrochemically platinized carbon paste. The proposed biosensor is free of potential interferences due to its cathodic detection of glucose at the potential of 0.0 V (vs. Ag/AgCl). It also shows acceptable analytical performance in terms of linearity (6 x 10(-5)to 1.2 x 10(-2)M, r = 0.998), detection limit (2 x 10(-5)M), response time (20-30 s), reproducibility (RSD = 4.4%), and storage life (t(0.80) = 45 days). All these advantages of the biosensor raise potential possibilities for its medical or other biotechnical applications.
authors.affiliation: The School of Chemistry and Chemical Technology, Nantong University, Nantong, Jiangsu 226001, P.R. China.
authors.forename: Liang
authors.initials: L
authors.lastname: Ming
authors.forename: Xia
authors.initials: X
authors.lastname: Xi
authors.forename: Jie
authors.initials: J
authors.lastname: Liu
mesh_terms: D015374:Biosensing Techniques / Q000379:methods*; D004563:Electrochemistry; D004566:Electrodes; D004867:Equipment Design; D005947:Glucose / Q000032:analysis*
chemical_list: D005947:Glucose