The basic working principle of the biochemical analyzer is that the colored liquid in the cuvette is irradiated by a monochromatic beam, and the optical signal is converted into a corresponding electrical signal by the detector (photoelectric converter) through the absorption of light energy by the sample to be tested. The signal is amplified, rectified, and converted into a digital signal, which is sent to the computer. At the same time, the computer controls the driving power to drive the filter wheel and the sample plate. The computer then processes, calculates, analyzes and saves the measurement data according to the working mode selected by the user. The printer prints out the corresponding results at the same time, and finally, the cuvette is cleaned after each set of samples is measured.
Fully automatic biochemical analyzer, the entire process from sample addition to result output is completely automated by the instrument. The operator only needs to put the sample on the specific position of the analyzer, select the program to start the instrument, and then wait for the inspection report.
Since the Technicon Company of the United States successfully produced the world's first fully automatic biochemical analyzer in 1957, various types of fully automatic biochemical analyzers with different functions have continued to emerge, which is a very important step for the automation of clinical biochemical tests in hospitals. step. Since skeggs first introduced the principle of a clinical biochemical analyzer in the 1950s, with the development of science and technology, especially medical science, various biochemical automatic analyzers and diagnostic reagents have developed greatly. It can be divided into four types: continuous flow type (pipeline type), discrete type, separated type and dry chip type.
