Vacuuming: When the vacuum pump is turned on, Rotary Evaporator it is found that the vacuum cannot be hit. Check whether the mouth of each bottle is sealed, whether the vacuum pump itself leaks, Rotary Evaporator whether the sealing ring at the shaft is intact, Rotary Evaporator and a vacuum switch in series with the external vacuum tube can improve recovery and evaporation Speed.
Feeding: Using the system vacuum negative pressure, Rotary Evaporator the liquid material can be sucked into the rotating bottle with a hose at the feeding port, Rotary Evaporator and the liquid material should not exceed half of the rotating bottle. The instrument can be fed continuously, please pay attention when feeding 1. Turn off the true Empty pump 2. Stop heating 3. After the evaporation stops, Rotary Evaporator slowly open the tube cock to prevent backflow.
Heating: This instrument is equipped with a specially designed water bath. It must be filled with water and then powered on. The temperature control scale is 0-99°C for reference. Due to the existence of thermal inertia, Rotary Evaporator the actual water temperature is about 2 degrees higher than the set temperature. The set value can be corrected during use, Rotary Evaporator such as: you need the water temperature 1/3-1/2. Unplug the power cord with a pull out. Rotation: Turn on the switch of the electric control box, Rotary Evaporator adjust the knob to the best evaporation speed. Pay attention to avoid the vibration of the water bath and connect the cooling water. Recovery of solvent: first turn on the feed switch to deflate, Rotary Evaporator then turn off the vacuum pump, and remove the solvent in the collection bottle.
Post time: Nov-17-2022
