Hi,
You can evaporate it in incubator, laminar air flow, or fume hood. we do it and the results good enough
You can simulate a rotary evaporator by monting a system compraised of an erlenmeyer over a hot plate magnetic stirrer or a heated ballon, conected to a inclined condenser. The exit of the condenser has to be cinnected in a collector flask, like a kitassate. Conect the system to a vaccum line or pump.
HI you can try Open-Dish Evaporation, Reduced-Pressure Evaporation,You can accomplish evaporation from a solution quickly by placing it in a side-arm flask, sealing the flask, and then applying vacuum. Under vacuum (reduced pressure) liquids vaporize and boil off at lower temperatures; effectively, the solvents come off a lot faster when under vacuum than at atmospheric pressure.
follow this link for procedure http://orgchem.colorado.edu/Technique/Procedures/SolventRemoval/SolventRemoval.html
You can use severe flowing air (Nitrogen if yours is air sensitive) from gas inlet with say a syringe into the solution. The severe turbulence of rotation of the solution in the vial would evaporate the solvent. I tried it succesfully.
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