METHOD OF DETECTING SALICYLATE AND ANALYZER FOR DETECTION

摘要

A method and apparatus for the assay of salicylate (or a derivative thereof) comprising a conducting body having at a surface thereof an enzyme capable of catalysing the conversion of salicylate (or a derivative thereof) to a catechol whereby said catechol is subject to direct electrochemical measurement as it oxidises at said surface to generate a current as a measure of the reaction taking place and thereby of the concentration of salicylate at said surface. The method typically comprises the steps of:… a) treating a liquid sample suspected of containing salicylate or a derivative thereof with an enzyme capable of catalysing the conversion of salicylate or a derivative thereof into a catechol, and,… b) measuring the concentration of catechol in the treated sample by direct electrochemistry.