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    Analytical Chemistry

    Analytical chemistry is a science about the analysis methods and theories of chemical information such as the composition, content, structure, and morphology of research materials, and is an important branch of chemistry. It is to identify those components contained in a substance, and what components the substance consists of, determine the relative content of various components, and study the molecular structure or crystal of the substance.

    Analysis Reagents

    Analytical reagents generally refer to chemical reagents, which are relatively standard substances for chemical research and component analysis, and are important conditions for scientific and technological progress. They are widely used in the synthesis, separation, qualitative and quantitative analysis of substances. Chemicals are indispensable in the daily work of factories, schools, hospitals and research institutes.

    Food Safety

    Food safety testing technology is an important support for food safety. Food safety testing mainly includes testing of pesticide residues, veterinary drug residues, microorganisms, heavy metals, toxins, additives and chemicals, packaging materials, etc.

    Standard

    In the analysis work, it is often necessary to use a compound of good quality and accurate content, which is used as a comparison for detection control, or used to calibrate the instrument. This compound is called a standard. Or standard. The standard product refers to the standard substance used to determine the potency of biological products. The production department must provide the standard product expressed in units (μ) of its potency when it is approved as a quality standard for biological products. According to the application, the standard products for inspection can be divided into biological standard products for biological verification of biological products, endocrine drugs, antibiotics and so on.

    Liquid Chromatography

    Liquid chromatography is one of the most important methods for trace analysis of material components. The two phases in chromatographic analysis refer to a stationary phase with a large specific surface area and a mobile phase carrying the mixture to be separated through the stationary phase. Liquid chromatography is used for the mobile phase. Liquid chromatography is also called "liquid chromatography". A method for chromatographic analysis. The mobile phase used is liquid. Because the liquid in the chromatography column is more resistant than the gas, in order to improve the analysis speed, the high-pressure infusion method is usually used, so it is also called "high-pressure liquid chromatography". According to the different stationary phases, it can be divided into liquid-solid chromatography and liquid-liquid chromatography; according to the type of equilibrium that occurs between the stationary phase and the mobile phase, it can be divided into adsorption chromatography, partition chromatography, ion exchange chromatography, and gel chromatography. Used for separation and analysis of organic matter, inorganic matter and polymer liquid.
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