Analytical characterisation and application of a p-benzoquinone mediated amperometric graphite sensor with covalently linked glucoseoxidase

✍ Scribed by M. Stoytcheva; N. Nankov; V. Sharkova

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 604 KB
• Volume: 315
• Category: Article
• ISSN: 0003-2670
• DOI: 10.1016/0003-2670(95)00314-p

✦ Synopsis

The infhtence of the temperature, pH, p-benzoquinone and enzyme concentrations and speed of rotation of the electrode on the glucose determination with a p-benzoquinone mediated graphite sensor with covalently linked glucoseoxidase has been investigated. The results were applied to glucose analysis in concrete samples: blood serum, foodstuffs and pharmaceuticals. It was found that the proposed bioelectrocatalytic method for the determination of glucose is not inferior to the approved methods with respect to its accuracy; it is more rapid in comparison with the photometric method and it can be applied to determinations of low and high glucose concentrations.