ABSTRACT
Quantitative chemical analytical methods consist of a series of different individual steps. However, these individual steps are continuously developing with advances in analytical research. The developed ion-selective electrodes form a group of detectors of almost similar properties among the available analytical tools. The chapter describes some examples of procedures for making the selective measurement possible. There are: procedures for decreasing interfering effects; steps employed in much diluted samples; and techniques for increasing the lifetime of the detector. Only a minority of the ion-selective electrodes developed have been widely accepted in analytical practice. The essential significance of ion-selective electrodes lies in the fact that they are suitable for the selective determination of a variety of different ions. Potentiometric titrations play a prominent role in analytical methods employing ion-selective electrodes. The potentiometric-measuring methods are used not only for direct primary ion determination but also as component steps in other kinds of analytical methods.
