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Rotary evaporators are commonly used in laboratories for concentration,purification and recovery of solvents.
When using the rotary evaporator,you need to pay attention to the following matters:
Safety training:Before operation,you should receive professional training to understand the working principle and use of rotary evaporator.
Inspection of equipment:Check whether all parts of the rotary evaporator are in good condition before use,including whether the glass parts are cracked,whether the seals are intact,and whether the heater and cooling system work properly.
Correct installation:Make sure all parts are correctly installed,including evaporation bottle,condensation tube,receiving bottle,etc.
Temperature control:Set a reasonable heating temperature to avoid overheating that may cause sample decomposition or flask rupture.
Vacuum Adjustment:When adjusting the vacuum level,it should be done slowly to avoid over-rapid change of the vacuum level causing the solution to boil violently.
Prevent backsiphonage:Make sure the cooling water in the condenser tube is unobstructed to prevent the water in the condenser tube from being sucked into the evaporation flask,resulting in sample contamination or damage to the equipment.
Attention to liquid addition:When adding liquid to the evaporation bottle,use a funnel to avoid direct liquid contact with the mouth of the bottle,resulting in poor sealing.
Prevent spilling:When heating,pay attention to observe the boiling situation of the liquid in the bottle to prevent spilling.
Personal protection:Wear heat-resistant gloves,protective glasses and other personal protective equipment during operation to prevent thermal or chemical injury.
Environmental Ventilation:Operate in a fume hood to ensure good ventilation and prevent harmful gases from accumulating.
Emergency Handling:Understand and prepare the appropriate emergency handling measures so that you can take prompt action if an accident occurs,such as turning off the heater,releasing the vacuum,etc.
Cleaning and maintenance:After use,the rotary evaporator should be cleaned in time,especially the sealing ring and condenser tube,to ensure that the equipment is clean and prolong the service life.
Operation record:Record the operation conditions and process to facilitate the repetition of the experiment and the traceability of the problem.
When using the rotary evaporator,you should strictly comply with the operating procedures,pay attention to safety,to ensure the smooth progress of the experiment.
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