Method for detecting a narcotic in the presence of an interferant Universiteit Antwerpen
The present invention relates to a method for determining the presence of a narcotic (e.g. cocaine) in a mixture comprising at least one interferant. The method comprises: (a) determining a voltage at which, in absence of the interferant, a voltammetric signal of the narcotic can be detected; (b) contacting an electrode with the mixture comprising the at least one interferant and potentially comprising the narcotic; (c) applying a pretreatment potential to the electrode for a duration of at least 5 seconds, preferably at least 60 seconds, yet more preferably at least 200 seconds (e.g. 360 s), ...