A rotary evaporator, also known as a rotovap or rotavapor, is a laboratory device used for the efficient and gentle removal of solvents from samples by evaporation. The rotary evaporator works by rotating the sample flask while applying a vacuum to the system, which lowers the boiling point of the solvent and facilitates its evaporation. The resulting vapor is then condensed and collected in a separate flask, leaving behind the concentrated sample.
Rotary evaporators are commonly used in chemistry research and production, as well as in the pharmaceutical, biotech, and food industries. They are ideal for the preparation of samples for analysis, purification of compounds, and the removal of solvents from reaction mixtures. Rotary evaporators come in various sizes and configurations to meet different laboratory needs and can be used with a wide range of solvents and samples, including volatile and heat-sensitive compounds.