ATmega8535 MICROCONTROLLER BASED BLOOD SODIUM ANALYZER USING ISE DIRECT POTENTIOMETRY
P. Neelamegam, K. Murugananthan, R. Raghunathan, A. Jamaludeen · Instrumentation Science & Technology · 2009
A low cost microcontroller based Sodium analyzer is developed to measure the concentration of sodium in blood serum. A dedicated ATmega8535 based microcontroller and its associated peripherals are employed for the hardware. This paper explains the details of interfacing, calibration, and procedure of operation. The Sodium Ion Selective Electrode (ISE) is used as sensor for the measurement. Software is developed in ‘C’ language in order to measure, analyze, and to display the results. The blood samples are collected from many patients. Sodium concentration is measured from the collected samples. The performance of the instrument is studied by using linear regression analysis.