检测金和铂电极的状态

Data is given for checking the condition of electrodes used for redox potential measurements. Their potentials can be verified by means of Metrohm’s ready-touse redox standard solution. A second possibility is to perform the potential measurement in a buffer solution saturated with quinhydrone and compare the measured value with theoretical values given in literature. It is advisable to check the redox electrode assemblies at regular intervals. For this purpose, certified buffer solutions with specified redox potential or pH value should be used.