Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
196014 | Electrochimica Acta | 2006 | 6 Pages |
Abstract
A feasible method of fabricating phthalocyanine sensor was developed by covalent attachment of cobalt tetracarboxylic acidchloride phthalocyanine (CoTCACIPc) onto a preformed 2-mercaptoethanol (2-ME) self-assembled monolayer (SAM) modified gold electrode (designated as CoTCACIPc-2-ME-SAM). The surface concentration of the CoTCACIPc was found to be 4.58 × 10−10 mol/cm2. The sensor gave a linear response to l-cysteine over the concentration range 0.28–20 μM with a detection limit of 5 × 10−7 M and best response time of 2 s.
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Authors
Philani N. Mashazi, Kenneth I. Ozoemena, David M. Maree, Tebello Nyokong,