Yingtai Vacuum Centrifugal Concentrator: The "Efficient Concentration Assistant" for Laboratory Sample Pretreatment

Yingtai Vacuum Centrifugal Concentrator: The "Efficient Concentration Assistant" for Laboratory Sample Pretreatment

In scientific research and testing laboratories, the centrifugal concentrator is a core equipment in the sample pretreatment process. It combines centrifugal force and a vacuum environment, accelerates solvent evaporation through low-temperature heating, and achieves rapid sample concentration. It is widely used in scenarios such as nucleic acid extraction, protein purification, and drug residue detection. For example, it concentrates DNA solutions before gene sequencing and concentrates trace pollutant extracts in food testing, which can significantly shorten sample processing time and improve experimental efficiency.

Operating the centrifugal concentrator must follow the principle of "parameter adaptation - safety monitoring". Adjust parameters according to the solvent type: when processing aqueous solvents, the temperature can be set to 30℃-40℃, and the vacuum degree maintained below 100Pa; when processing organic solvents (such as ethanol, methanol), the temperature needs to be reduced to 20℃-30℃, and the vacuum degree increased to below 50Pa to prevent solvent boiling. When placing samples, ensure that the centrifuge tubes are distributed symmetrically, and the weight deviation does not exceed 0.5g to avoid equipment vibration. During operation, temperature and vacuum degree must be monitored in real time. If parameter abnormalities occur, the equipment will automatically shut down, and the problem of leakage or sample overflow must be checked before restarting.

Daily maintenance should focus on the "vacuum system" and "heating module". After each use, remove the sample rotor and wipe the inner wall of the chamber with a dust-free cloth to remove residual solvent; check the color and liquid level of the vacuum pump oil every week, and replace it in time when the oil is turbid or the oil level is below the scale line; calibrate the temperature sensor with a calibrator every month, and recalibrate when the error exceeds ±1℃; disassemble and clean the condenser tube every quarter to remove residual solvent impurities in the tube and ensure condensation efficiency. In addition, keep the chamber dry when not in use for a long time, and run the machine with no load for 10 minutes regularly to prevent component aging.

Compared with traditional rotary evaporators, centrifugal concentrators have the advantages of fast concentration speed (efficiency increased by 3-5 times), high sample recovery rate (up to more than 95%), and no cross-contamination. They are also compatible with various specifications of centrifuge tubes to meet the needs of micro-sample processing. With the improvement of laboratory automation needs, centrifugal concentrators with intelligent touch control, program storage, and data export functions have become essential equipment in laboratories in the fields of biology, chemistry, and environment.