describe

Ion analyzer mainly uses ion-selective electrode measurement method to achieve accurate detection. Electrodes on the instrument: fluorine, sodium, potassium, ionized calcium, magnesium, and reference electrodes. Each electrode has a monion selective membrane, which reacts with the corresponding ions in the tested sample. The membrane is a monion exchanger that reacts with the ionic charge and changes the membrane potential, which can detect the liquid, the sample and the potential between the membrane. The difference between the two potentials detected on both sides of the membrane creates a current, the sample, the reference electrode, the reference electrode liquid constitute the "loop" one side, the membrane, the internal electrode fluid, and the internal electrode is the other side. The ion concentration difference between the internal electrode liquid and the sample generates an electrochemical voltage on both sides of the membrane of the working electrode, which is led to the amplifier through the internal electrode with high conductivity, and the reference electrode is also led to the site of the amplifier. The calibration curve is obtained by detecting a standard solution with a precise known ion concentration to detect the ion concentration in the sample. In the solution, ion migration occurs within the aquifer of the ion-selective electrode matrix. There is a potential for the charge of the migrated ion, which changes the potential between the membrane surface, creating a potential difference between the measurement electrode and the reference electrode.