A sensitive electrochemical method for the determination of dopamine (DA) was developed by using salicylic acid (SA) and TX-100, SDS, CTAB surfactants modified carbon paste electrode at phosphate buffer solution pH.7. This kind of modified electrode showed excellent electrocatalytic activity towards the oxidation of DA by the influences of different kinds of surfactants on the electrochemical signals of dopamine. Some parameters such as pH, scan rate, concentration and effect of surfactants of dopamine were optimized. This approach is so easy, low detection limit, fast response, high reproducibility, low cost and simplicity
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Manjunatha et al. (2010) studied this question.
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