Vacuum suction filter's principle, structure, advantage and application.

Vacuum suction filter is a highly efficient filtration equipment, widely used in biology, pharmaceutical chemistry, environmental monitoring and other fields.





I. Principle of Vacuum suction filter
Vacuum extraction filter adopts vacuum suction as the main driving force, and filters through the filter membrane under negative pressure to separate solid particles in the sample. The realization process can be briefly described as follows: the liquid to be filtered is injected into the sample bottle, the vacuum suction port is opened, so that the vacuum pressure is conducted to the filter membrane, and the sample liquid is adsorbed on the filter membrane, while the solid particles are intercepted in the upper layer. Eventually, the purified liquid after filtration is stored in the container to achieve the purpose of separating impurities.

II, the structure of Vacuum suction filter
The Vacuum suction filter consists of four parts: vacuum pump, funnel, filter bottle and holder. Among them, the vacuum pump provides strong vacuum force, the funnel is used to receive the liquid to be filtered, the filter bottle is the core component responsible for realizing filtration, and the bracket is the foundation for fixing each component. The whole equipment is compact, simple structure, easy to operate and clean.

III, the advantages of Vacuum suction filter
1. High efficiency: it adopts filter membrane for filtration, which has high efficiency separation effect and can quickly separate the impurities in the sample;
2. Precise: the filter membrane has small pore size and high precision, which can effectively filter tiny particles and ensure the accuracy of the filtration results;
3. Easy to operate: the device is compact, reasonably designed and easy to use, which can greatly improve the working efficiency;
4. Widely used: the device has a wide range of applications in biology, pharmaceutical chemistry, environmental monitoring and other fields, such as DNA/RNA purification, water quality monitoring, cell culture and so on.

IV. Application of Vacuum suction filter
1. Biology: ZF-10L Vacuum Filter Extractor can be used to separate DNA/RNA and a large number of samples can be separated quickly, which is suitable for high-throughput molecular biology laboratory;
2. Medicinal chemistry: it can be used to prepare precursor compounds for drugs and filter out impurities and precipitates in them;
3. Environmental monitoring: it can quickly separate out microparticles, suspended solids, etc. in water samples, which is of great significance for water quality testing and monitoring;
4. Cell culture: it can be used to screen impurities in cell culture medium to ensure the purity and safety of cell culture.