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Working Principle And Related Characteristics Of Rotary Film Evaporator

Oct 02, 2019

The rotary film evaporator is a device for concentrating a fast liquid sample. The sample is heated, decompressed in a spherical glass vessel, and continuously rotated to increase the evaporation surface area and accelerate the evaporation rate. Mainly used in biochemistry and molecular biology, suitable for reflow operations, rapid evaporation of large amounts of solvents, concentration of trace components, and reaction processes requiring agitation.


The rotary film evaporator can seal the pressure to 400-600 mmHg; the solvent in the distillation bottle is heated by a heating bath, the heating temperature can be close to the boiling point of the solvent; and the rotation can be performed at a speed of 50-160 rpm. The solvent is formed into a film to increase the evaporation area.


Under vacuum conditions, the constant temperature is heated to rotate the rotating bottle at a constant speed, and the material forms a large-area film on the bottle wall to evaporate efficiently. The solvent vapor is cooled by a high-efficiency glass condenser and recovered in a collection bottle to greatly increase the evaporation efficiency. It is especially suitable for the concentration and purification of biological products which are easily decomposed and degenerated by high temperature.https://www.syhgzben.com/


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