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NADH sensor with electrochemically modified TCNQ electrode

✍ Scribed by A.S.N. Murthy; Anita R.L. Gupta

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
285 KB
Volume
289
Category
Article
ISSN
0003-2670

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✦ Synopsis

7,7,8,8-Tetracyanoquinodimethane (TCNQ) has been immobilized electrochemically on an edge plane pyrolytic graphite electrode. The electrode was immersed in a solution of TCNQ in acetonitrile and a voltage of 1.0 V vs.

Ag/AgCl was applied for 25 min. The surface coverage was 5.3 X lo-" mol cm-*. The modified electrode catalyses the electron transfer from dihydronicotinamide adenine dinucleotide (NADH) and is potentially useful as a sensor for substrates enzymatically coupled to NAD+/NADH.

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