Blood Cell Analyzer Detection Principle

The blood cell analyzer is mainly used for the measurement of the number of blood cells, hemoglobin concentration determination and leukocyte classification, and through the calculation to give the relevant parameters of each cell, is the highest rate of use of clinical laboratory one of the routine equipment. In order to better understand and use the blood cell analyzer, we must first understand its detection principle.

Kang Yu medical blood cell analyzer detection principle for the Coulter principle, is in the counting tube inside and outside each placed on a platinum electrode, the two electrodes between the application of a constant current, the test will be tested first with a clean electrolyte dilution of blood, so that the blood cells in the electrolyte to become a free bulk state, and then in the upper end of the counting tube to apply a negative pressure, the use of blood cells through the counting tube jewel holes in the electrical resistance change and the electrical pulse, the number of pulses on behalf of the counting tube. Then negative pressure is applied to the upper end of the counting tube, using the change in resistance of the blood cells when they pass through the jeweled holes of the counting tube to obtain electrical pulses, and the number of pulses represents the number of blood cells, thus achieving the purpose of counting.