A research team led by Kim Pyong Hun, a section head at the General Assay Office, has developed an electrolytes analyzer whereby a rapid analysis of the concentration of ionic electrolytes in human serum is made by using selective ionic electrodes.
The electrolytes analyzer is a medical analytical instrument used to diagnose several diseases by rapidly determining the concentrations of ionic electrolytes such as potassium, sodium, chloride and calcium and pH in serum or urine.
It consists of power supply unit, sample injection unit, detection unit, waste disposal unit, etc.
The power supply unit supplies power to the signal amplifier and the controller. The sample injection unit has a sample injection needle which injects samples, and a switching valve which selects necessary liquor such as calibration solutions, elution solutions, activation solutions for electrodes, etc. The detection unit has six electrodes, that is, a potassium ionic selective electrode, a sodium ionic selective electrode, a chloride ionic selective electrode, a calcium ionic selective electrode, a pH electrode and a reference electrode. The waste disposal unit has a peristaltic pump for drainage and a box for wastes.
The application range of the electrolytes analyzer is 0.5~15.0mmol/L for potassium, 30.0~200.0 mmol/L for sodium, 20.0~200.0 mmol/L for chloride, 0.10~6.00 mmol/L for calcium and pH 4.00~9.00.
The CV of the electrolytes analyzer is ≤1.5% for potassium, sodium and chloride and ≤2.0% for calcium and pH.
The operation conditions are 220V, 170 W, 5~35℃ temperature and ≤65% humidity.
© 2021 KumChaek University of Technology