Knowledge What is the Process of Rotary Evaporator? 5 Key Steps Explained
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Tech Team · Kintek Solution

Updated 2 weeks ago

What is the Process of Rotary Evaporator? 5 Key Steps Explained

The process of rotary evaporation involves several steps. Let's break it down into five key steps to make it easier to understand.

5 Key Steps Explained: What is the Process of Rotary Evaporator?

What is the Process of Rotary Evaporator? 5 Key Steps Explained

1. Reducing Pressure

The first step is to reduce the pressure inside the rotary evaporator using a vacuum pump. This lowers the boiling point of the solvent, allowing it to evaporate more easily.

2. Rapid Rotation

Once the pressure is reduced, the sample inside the evaporator flask is rotated rapidly. This rotation increases the effective surface area of the sample, which promotes faster evaporation of the solvent.

3. Evaporation

As the sample rotates, the solvent begins to evaporate. The evaporated solvent moves through the apparatus and enters the condensing part.

4. Condensation

In the condensing part, the gas-phase substances are cooled and condensed back into liquid-phase. This is usually achieved by passing the gas through glass tubes, where it is cooled by a chiller or a condenser pump.

5. Collection

The condensed liquid-phase substances are then transferred into a receiving flask, which is the final destination for the extracted substances. The receiving flask can be removed from the rotary evaporator equipment.

By following these steps, the rotary evaporation process effectively removes the solvent from the sample. The combination of reduced pressure, rapid rotation, and heating accelerates the evaporation process, allowing for efficient solvent removal. The concentrated chemical or residue remains in the flask after the solvent is removed.

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