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Since Tswett proposed the concept of chromatography in 1906, chromatographic technology has become one of the most important technologies in the field of analytical science, and also an important means of material separation analysis.20ml gas Chromatography vials Chromatography plays an important role in the advancement of science and the development of production. Because of its high separation efficiency, wide application range, fast analysis speed and high sensitivity, this technology is increasingly used in petrochemical, organic synthesis, pharmaceutical analysis, environmental testing, etc., and chromatography is involved in almost all fields. Analytical applications of its related technologies.
From classical plate chromatography to column chromatography, from gas chromatography, high performance liquid chromatography to capillary electrophoresis and electrochromatography, no matter which chromatographic method plays an important role in scientific research and industrial production. With the increasing application of chromatographic technology, many scholars and experts have made more and more in-depth research on chromatographic technology. Below Lu Chuang combines the company's actual production products to give you a brief introduction to several commonly used chromatographic instrument analysis methods and applications. .
Thin-layer chromatography is a widely used chromatographic method. It is popular among users because of its simple equipment, convenient operation, high separation efficiency and high detection sensitivity. And all the steps of TLC are independent, the flexibility is very high, the thin layer plate is used once, and the analysis cost of a single sample is low, so this method has a wide range in medicine, biology, environment, food, etc. Applications. In the quality control of pharmaceutical products, TLC can not only determine the purity of the drug, but also accurately identify the active ingredients and determine the content of Chinese herbal medicines and proprietary Chinese medicines. In the field of synthetic processes, thin-layer chromatography is often used as a means of monitoring and analysis, often used as an analysis of environmentally harmful substances, analysis of natural nutrients in foods, analysis of food additives, and analysis of certain mycotoxins. In addition, thin-wall chromatography in thin-layer chromatography is unique in the analysis of saturated hydrocarbons, aromatic hydrocarbons, colloids and asphaltenes in petrochemical-heavy oil production.
Gas chromatography 20ml gas Chromatography vials
Gas chromatography is a major scientific and technological achievement in the 1950s. This is a new separation and analysis technology, and it is also one of the most common detection techniques. Gas chromatography has the advantages of good separation ability, high sensitivity, fast separation speed and convenient operation. However, due to technical conditions, substances with too high boiling point or materials with poor stability are difficult to apply to gas chromatography.
This technology is generally widely used for substances that are less volatile or easily decomposed by heat at temperatures below 500 °C. It plays a very important role in food safety testing and other fields. It uses gas chromatography to detect pesticide residues in vegetables, harmful components in alcohol and volatile gases, and toxic substances in food packaging. In terms of environmental protection, gas chromatography is often used for the analysis, monitoring and research of toxic and hazardous substances in polluted areas such as the atmosphere, water sources and soil. In addition to the large-scale application of traditional petrochemical analysis, it is also widely used in coal mine underground mining, power transmission and transformation, medical device products, paint and paint, natural gas analysis and other special chromatograms.
High performance liquid chromatography
High performance liquid chromatography is one of the most widely used chromatographic methods in modern applications. The high performance liquid chromatography system consists of a mobile phase storage bottle, an infusion pump, an injector, a column, a detector, and a recorder. The overall composition is similar. 20ml gas Chromatography vials, however, makes many adjustments to the characteristics of its mobile phase as a liquid. The infusion pump of high performance liquid chromatography requires a stable balance of the infusion volume, and the injection system requires convenient injection and strict switching. Since the viscosity of the liquid mobile phase is much smaller than that of the gas, in order to reduce the column pressure, the column of the HPLC is generally coarser and the length is much smaller than that of the GC column (filled column and capillary column).
Because high performance liquid chromatography has the characteristics of high pressure, high efficiency, high sensitivity, fast analysis speed and fast current carrying rate, more than 70% of organic compounds can be analyzed by high performance liquid chromatography. In particular, separation and analysis of compounds with high boiling point, large molecule, strong polarity and poor thermal stability are more advantageous, and the separation efficiency is extremely high.
Chromatography is closely related to our lives. With the continuous improvement of chromatographic technology, chromatographic analysis is gradually applied to more fields. Its unique detection advantages have had a huge impact on our future life. Here we also wish that chromatographic technology can have more room for development and make more contributions to the development of science and technology in China.als,20ml gas Chromatography vials, 20ml crimp gas Chromatography vials, 20ml CTC headspace vials, 20ml GC headspace vials
This is the end of the introduction of Inventory the methods and applications of chromatographic instruments commonly used around us. I hope it can help you.