Ion-selective electrodes are electrochemically sensitive elements whose potential is linearly related to the logarithm of ionic activity in a given solution. They are an electrochemical sensor that uses membrane potential to determine ionic activity or concentration in a solution. They belong to membrane electrodes, and their core component is the induction film at the tip of the electrode. The ion selective electrode method is a branch of potential analysis and is generally used in direct potential method and can also be used in potential titration. Its characteristics are: the concentration of specific ions in the solution can be measured ； Wide application scope ； Not affected by the color, turbidity, etc. of the reagent.

Application of ion selective electrodes

The analysis objects of ion selective electrodes are very wide. As long as you select the correct ion measurement method, ion meter and electrode, you can measure the concentration value of the corresponding ions. It has been successfully applied in environmental monitoring, water quality monitoring, soil analysis, food testing, drug analysis and other fields.

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