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Working principle of Shanghai Yetuo vacuum centrifugal concentrator
By using an external vacuum pump to extract air, the interior of the instrument can reach a vacuum or near vacuum state, reducing the boiling point of the solvent and allowing it to evaporate rapidly at lower temperatures. For example, in a vacuum environment, the boiling point of water will be much lower than 100 ℃, which accelerates the evaporation of solvents in the sample.
Centrifugal effect: The sample rotates at high speed in the centrifugal rotor, generating centrifugal force that evenly distributes the sample at the bottom of the centrifuge tube, preventing boiling and loss of the sample. At the same time, it also allows the dried solute to settle completely at the bottom of the container, facilitating the full recovery of the sample. Heating effect: Radiation heating and other technologies are used to compensate for the heat loss during solvent evaporation, accelerate the evaporation rate of the sample, and adjust the temperature accurately through a temperature control system to meet the concentration requirements of different samples. However, for thermosensitive samples, no heating or low-temperature heating can also be selected.
Structural composition of Shanghai Yetuo vacuum centrifugal concentrator
Centrifugal system: includes components such as a motor and a centrifugal rotor. The motor provides power to rotate the centrifugal rotor at high speed. Different types of rotors can be adapted to centrifuge tubes or sample containers of different specifications, such as rotors suitable for 1.5mL, 2mL, 15mL, and 50mL centrifuge tubes, as well as rotors that can accommodate enzyme-linked immunosorbent assay plates.
Vacuum system: composed of vacuum pump, vacuum pipeline, vacuum gauge, etc. The vacuum pump is used to extract air inside the instrument, forming a vacuum environment, while the vacuum gauge monitors the vacuum degree inside the system in real time, so that operators can understand and control the concentration process.
Heating system: generally includes a heating element and a temperature sensor. The heating element heats the sample, and the temperature sensor feeds back temperature information to the control system to achieve accurate temperature control and ensure that the sample is concentrated at the set temperature.
Condensation system: A cold trap is usually used to cool the evaporated solvent, causing it to condense into a liquid and collect it, preventing the solvent from entering the vacuum pump, affecting its performance and lifespan, and also facilitating the recovery and reuse of the solvent.
Control system: It can be an operating interface such as a touch screen or buttons, used to set various parameters such as centrifugal speed, temperature, time, vacuum degree, etc. It can also display the real-time operating status of the instrument, such as remaining time, current temperature, vacuum degree value, etc. Some high-end instruments also have functions such as program preset and fault alarm.
Characteristics of Shanghai Yetuo Vacuum Centrifugal Concentrator
Gao effect concentration: By utilizing the synergistic effect of vacuum, centrifugation, and heating, solvents in the sample can be quickly removed, greatly reducing concentration time and improving experimental efficiency.
Jing Accurate Control: It can accurately adjust parameters such as centrifugal speed, temperature, and vacuum degree to meet the concentration requirements of different samples, ensuring the accuracy and repeatability of experimental results.
Avoiding contamination: The enclosed design isolates the sample from the outside during the concentration process, effectively preventing contamination from the external environment and avoiding cross contamination between samples.
Sample protection: For samples that are sensitive to heat or prone to oxidation, concentration can be carried out in a low-temperature, oxygen free environment by controlling temperature and vacuum degree to protect the activity and integrity of the sample.
High throughput processing: Some vacuum centrifugal concentrators can be equipped with multi tube rotors or enzyme-linked immunosorbent assay plate rotors, which can process multiple samples simultaneously, improve experimental throughput, and are suitable for large-scale sample concentration work.
Application Fields of Shanghai Yetuo Vacuum Centrifugal Concentrator
Biochemistry and Molecular Biology: Used for the concentration and purification of DNA/RNA, the concentration and desalination of biomolecules such as proteins, enzymes, and immunoglobulins, as well as the treatment of biological samples such as cell culture supernatants and viral fluids.
Yao's research and development: plays an important role in the concentration of drug metabolites, purification of drug intermediates, preparation of drug formulations, etc., which is helpful for drug research and quality control.
Materials Science: In the research and preparation process of new energy materials, nanomaterials, polymer materials, etc., it can be used to remove organic solvents, improve the purity and performance of materials, such as preparing lithium battery electrode materials, nano gold particles, polymer films, etc.
Analytical Chemistry: Used for pre-treatment and post-treatment of samples analyzed by liquid chromatography, gas chromatography, mass spectrometry, etc., such as sample concentration, enrichment, purification, etc., to improve the sensitivity and accuracy of analytical methods. Food safety and environmental monitoring: can be used for the detection of pesticide residues, veterinary drug residues, additives, etc. in food, as well as the concentration and analysis of pollutants in environmental water and soil samples, providing technical support for food safety and environmental protection.
