Steps for Using Refrigerated Circulator and Rotary Evaporator Together

Steps for Using Refrigerated Circulator and Rotary Evaporator Together

Low-temperature refrigeration circulator can be used in combination with rotary evaporator, vacuum freeze-drying oven, multi-function vacuum pump, etc. This equipment is especially suitable for various chemical, biological and physical laboratories that require low temperature work. It is an important equipment for medical and health, food industry, metallurgical industry, universities, scientific research institutions and laboratories.

Rotary evaporators are mainly used for continuous distillation of large amounts of volatile solvents under reduced pressure, such as distilled extracts and receiving solutions during chromatographic separation. The basic principle of the rotary evaporator is the vacuum distillation of continuous rotating distillation flasks. As a heat source for distillation, it is usually equipped with a corresponding constant temperature water tank.

Combination method of low temperature refrigerating circulator and rotary evaporator

1. Turn on the refrigeration circulator. Take care to press the power button first, then the cool down button, the cycle starts when the temperature drops to the desired temperature.

2. Turn on the pump to circulate the water.

3. Install the spinner bottle and fix it with clips. Turn on the vacuum pump and start to rotate after a certain vacuum.

4. Adjust the height and rotation speed of the rotary bottle, and set the appropriate water bath temperature.

5. After steaming, stop the rotation, turn on the air, then stop the water pump, and take out the rotation bottle.

6. Stop the refrigeration circulator, stop the heating of the water bath, turn off the circulating water of the water pump, pour out the solvent in the receiving bottle, and clean the buffer ball and the receiving bottle.

If the viscosity of the sample is very high, it is necessary to reduce the speed and rotate slowly manually to form a new liquid level, which is conducive to the evaporation of the solvent. First manually rotate the lifting screw, tighten it clockwise, connect the rotary evaporator, clamp the rotary evaporator with a clip, turn on the switch button, adjust the speed to about 100 (the speed is between 60-150), and adjust the temperature to 40 ℃ After the temperature stabilizes, raise the temperature to about 60°C, take out the rotary evaporator, and put it in an oven for drying (the whole process takes about one hour).

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