Abstract
Three enantioselective, potentiometric electrodes were proposed for the enantioanalysis of butaclamol. The electrodes were based on immobilization of maltodextrins (MDs) of different dextrose equivalences [4.0–7.0, I; 13–17, II; 16.5–19.5, III] into carbon paste. The electrodes based on MD I and II were used for the enantioanalysis of S-butaclamol within linear concentration ranges of 10−10 to 10−7 and 10−10 to 10−8, respectively, with slopes of 51.20 and 57.59 mV/decade of concentration; whereas the electrode based on MD III was used for the enantioanalysis of R-butaclamol within a linear concentration range between 10−10 and 10−7 with a slope of 58.50 mV/decade of concentration. Recoveries greater than 90% were recorded for the enantioanalysis of butaclamol in synthetic and urine samples.
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