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A method to quantify ethanol in gasohol fuels is described by using a copper microelectrode polarised at 0.6V vs Ag/AgCl as an amperometric sensor. The determination was performed in a 1molL −1 NaOH aqueous phase after extraction of ethanol from gasohol samples. The influence of the solution stirring on the ethanol extraction was investigated by monitoring the analyte with the sensor immersed...
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