title: Amperometric enzyme sensor for glucose based on graphite paste-modified electrodes.
abstract: Amperometric enzyme electrode for glucose is described based on the incorporation of glucose oxidase (GOD) into graphite paste modified with tetracyanoquinodimethane (TCNQ). The incorporated enzyme exhibits high activity and long-term stability over the earlier TCNQ-based glucose sensor (1). The sensor provides a linear response to glucose over a wide concentration range. The response time of the sensor is 15-50 sec, and the detection limit is 0.5 mM. Stable response to the substrate was obtained during a period of 35 d. Application of the sensor in the plasma analysis is reported.
authors.affiliation: Department of Chemistry, Banaras Hindu University, Varanasi, India.
authors.forename: P C
authors.initials: PC
authors.lastname: Pandey
authors.forename: A M
authors.initials: AM
authors.lastname: Kayastha
authors.forename: V
authors.initials: V
authors.lastname: Pandey
mesh_terms: D015374:Biosensing Techniques; D001786:Blood Glucose / Q000032:analysis*; D004563:Electrochemistry; D005949:Glucose Oxidase; D006108:Graphite; D009570:Nitriles
chemical_list: D001786:Blood Glucose; D009570:Nitriles; C013703:tetracyanoquinodimethane; D006108:Graphite; D005949:Glucose Oxidase