Ion Selective Electrodes (ISE) are ideal measurement tools because of their ability to monitor selectively the activity of ions in solution both continuously and nondestructively. This work presents the development of microcontroller based Instrumentation system to measure the sodium-potassium and concentration in vegetables by using an array of ISE. The values measured by using the developed instrument are compared with the other method. A line of comparison is drawn between the two methods, which prove the accuracy of the developed instrument.
