Alexander Goodwin, C. Banks, R. Compton
Jun 1, 2006
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Influential Citations
27
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Journal
Electroanalysis
Abstract
Graphite micropowder has been modified with 4-amino-2,6-diphenylphenol immobilized onto a basal plane pyrolytic graphite electrode and explored for the indirect electrochemical sensing of Δ9-tetrahydrocannabinol in artificial saliva. The protocol is based on the electrochemical formation of quinoneimine which specifically reacts with Δ9-tetrahydrocannabinol resulting in the loss of the quinoneimine which can be monitored via voltammetry. It is demonstrated that Δ9-tetrahydrocannabinol can be detected in artificial saliva over the micromolar range. Such a protocol may find application in screening for drug abuse.