I. Introduction
Automatic analyzer is a kind of instrument that can automatically complete the analysis of chemical and biological experiments, which is widely used in medicine, environmental monitoring, pharmaceutical and other fields. It can quickly and accurately detect various substances, providing important data support for scientific research, production and medical treatment.
II, the working principle of automatic analyzer
The automatic analyzer is usually composed of sampler, sampler, reaction system, detection system and control system. It works roughly as follows: First, the sampler takes a certain amount of liquid or solid from the sample to be tested and feeds it into the sampler. The purpose of the injector is to dilute, mix, or separate the sample to facilitate subsequent reactions. The reaction system then reacts the sample with the reagent to produce the corresponding chemical or physical change. The detection system detects the signal generated during the reaction process by means of light, electricity, heat, etc., and converts the signal into a measurable electrical signal. Finally, the control system coordinates the work of the various parts to ensure the automation and accuracy of the entire analysis process.
III, automatic analyzer classification
According to the type of substance detected: The automatic analyzer can be classified according to the type of substance detected. For example, automatic water quality analyzers are used to detect various ions and organics in water; Automatic soil heavy metal analyzer is used to detect heavy metal elements in soil. Food heavy metal automatic analyzer is used to detect heavy metal elements in food.
According to the detection principle: Automatic analyzers can also be classified according to their different detection principles. For example, the spectrophotometric automatic analyzer uses the principle of spectrophotometer to detect; Electrochemical automatic analyzer uses electrochemical method to detect; Chromatographic automatic analyzer uses the principle of chromatography for detection and so on.
By Field of application: Automatic analyzers can also be classified according to their field of application. For example, medical automatic analyzer is mainly used for biochemical analysis and immunoanalysis in medical laboratories; Environmental protection automatic analyzer is mainly used for the monitoring of water quality and air pollutants in environmental monitoring stations; Agricultural automatic analyzer is mainly used for soil and crop nutrient determination.
IV, the application of automatic analyzer
Medical diagnostics: In the medical field, automated analyzers are widely used in laboratory tests in clinical chemistry, immunology and hematology. By analyzing the composition of blood, urine and other body fluids, doctors can quickly and accurately diagnose diseases, develop treatment plans and monitor the effects of treatment. For example, the automatic biochemical analyzer can detect liver function, kidney function, blood sugar, blood lipid and other indicators, providing a basis for the diagnosis of liver disease, kidney disease, diabetes and other diseases.
Environmental monitoring: In the field of environmental monitoring, automatic analyzers are mainly used for the monitoring of pollutants such as water quality, air and soil. By analyzing components such as heavy metals, organic matter and nutrient salts in water, as well as pollutants such as PM2.5, NOx and SO2 in the atmosphere, the automatic analyzer can help environmental monitoring agencies find pollution sources in time and provide a scientific basis for environmental protection.
Pharmaceutical industry: In the pharmaceutical industry, automatic analyzers are mainly used in drug development, production and quality control. Through the analysis and testing of drug ingredients to ensure the effectiveness and safety of the drug. In addition, automated analyzers can be used for quality control and manufacturing process monitoring of biological products and vaccines.
Agricultural field: In the agricultural field, automatic analyzers are mainly used for soil and crop nutrient determination, agricultural product quality detection and other aspects. By analyzing nutrients such as nitrogen, phosphorus and potassium in the soil, as well as detecting pesticide residues and nutrients in agricultural products, automated analyzers can help farmers apply fertilizer and drugs rationally, improve the quality and yield of agricultural products.
Scientific research: In the field of scientific research, automatic analyzers are mainly used in the research of chemistry, biology and earth science. Through qualitative and quantitative analysis of various substances, as well as simulation and experimental research, automatic analyzers provide important data support and experimental means for researchers.
V. Summary
As an important chemical and biological experimental instrument, automatic analyzer has been widely used in medical diagnosis, environmental monitoring, pharmaceutical industry, agriculture and scientific research fields. It can quickly and accurately detect the composition and content of various substances, which provides important data support and practical means for the research and development of related fields. With the continuous development of science and technology, it is believed that the performance and application range of automatic analyzer will be further expanded and improved, and make greater contributions to the progress and development of human society.