Rotary evaporators are mainly used for drying, concentration, crystallization, separation and solvent recovery in chemical, pharmaceutical and biopharmaceutical industries. The working principle of the rotary evaporator: under vacuum conditions, heating at a constant temperature makes the rotary bottle rotate at a constant speed, and the material forms a large-area film on the bottle wall and evaporates. The solvent vapor is cooled by the glass condenser and recovered in the collection bottle, which greatly improves the evaporation efficiency. It is especially suitable for the concentration and purification of biological products that are easily decomposed and denatured at high temperature.
How to use the rotary evaporator:
1. Height adjustment: manual lifting, turning the hand wheel on the machine column, turning forward to rise, reverse turning to fall. Electric lifting, the main unit goes up when the up button is touched, and the main unit goes down when the down button is touched.
2. There are two external connectors on the condenser for cooling water. One end is connected to the water and the other is connected to the water. Generally, it is connected to tap water. The lower the temperature of the condensate, the better the effect. The upper port is equipped with a vacuum connector, which is connected to the vacuum pump hose for vacuuming.
3. Turn the speed control knob to the minimum before starting the machine, press the power switch and the indicator light is on, and then slowly rotate to the right to the required speed. Generally, medium and low speeds are used for large evaporating flasks, and lower speeds are used for solutions with high viscosity. The flask is a standard interface No. 24, with 500ml and 1000ml two flasks randomly attached, and the amount of solution is generally not more than 50%.
Rotary evaporators are mainly used for drying, concentration, crystallization, separation and solvent recovery in chemical, pharmaceutical and biopharmaceutical industries. The working principle of the rotary evaporator: under vacuum conditions, heating at a constant temperature makes the rotary bottle rotate at a constant speed, and the material forms a large-area film on the bottle wall and evaporates. The solvent vapor is cooled by the glass condenser and recovered in the collection bottle, which greatly improves the evaporation efficiency. It is especially suitable for the concentration and purification of biological products that are easily decomposed and denatured at high temperature.
How to use the rotary evaporator:
1. Height adjustment: manual lifting, turning the hand wheel on the machine column, turning forward to rise, reverse turning to fall. Electric lifting, the main unit goes up when the up button is touched, and the main unit goes down when the down button is touched.
2. There are two external connectors on the condenser for cooling water. One end is connected to the water and the other is connected to the water. Generally, it is connected to tap water. The lower the temperature of the condensate, the better the effect. The upper port is equipped with a vacuum connector, which is connected to the vacuum pump hose for vacuuming.
3. Turn the speed control knob to the minimum before starting the machine, press the power switch and the indicator light is on, and then slowly rotate to the right to the required speed. Generally, medium and low speeds are used for large evaporating flasks, and lower speeds are used for solutions with high viscosity. The flask is a standard interface No. 24, with 500ml and 1000ml two flasks randomly attached, and the amount of solution is generally not more than 50%.
