The electrolyte analyzer is used to measure the electrolyte content in whole blood, plasma, serum, and urine samples. Electrolytes are in the state of cations or anions in body fluids. Although electrolyte can be used to refer to any kind of salt dissolved in water, in the medical field, it refers to the four main electrolytes, namely sodium (Na+, potassium (K+), chlorine (Cl-) and bicarbonate (HCO3-) ).
Folding instrument use
Electrolyte analyzer is indispensable in clinical testing. In clinical testing, it mainly tests and maintains human blood. The balance of osmotic pressure in body fluids, ion testing and detection are very important in patients who require large amounts of balanced fluids such as surgery, burns, diarrhea, and acute myocardial infarction. The instrument has high precision and accuracy, and the result of any sample measurement is accurate, reliable, fast, and the operation is very simple. Therefore, ion detection is an indispensable general equipment in hospitals at all levels.
Electrolyte analyzers use ion-selective electrode measurement to achieve accurate detection. There are six types of electrodes on the instrument: sodium, potassium, chloride, ionized calcium, lithium and reference electrode. Each electrode has an ion-selective membrane that will interact with the The corresponding ion in the test sample reacts. The membrane is an ion exchanger, and the membrane potential is changed by reacting with the ion charge. The potential between the liquid, the sample and the membrane can be detected. The two potential differences detected on both sides of the membrane will produce Current, sample, reference electrode, and reference electrode solution constitute one side of the "loop", membrane, internal electrode solution, and internal electrode on the other side.
The difference in ion concentration between the internal electrode solution and the sample will generate an electrochemical voltage on both sides of the working electrode’s membrane. The voltage is led to the amplifier through the high-conductivity internal electrode, and the reference electrode is also led to the location of the amplifier. The standard solution with known ion concentration obtains a calibration curve to detect the ion concentration in the sample.
When the measured ions in the solution contact the electrode, ion migration occurs in the aqueous layer of the ion-selective electrode matrix. The charge of the migrated ions changes and there is a potential, which changes the potential between the membrane surfaces. Between the measuring electrode and the reference electrode Create a potential difference.
