Residual solvent vapors can create hazardous and unpleasant odors upon completion of evaporation runs, even when condensers capture the bulk of vapors. This paper explains the mechanism behind odor formation and presents Genevac’s “Reduce Odour” solution. Key topics addressed include:
- Mechanisms of residual solvent odor formation
- Limitations of condenser-based vapor capture
- Programmed vent-and-vacuum purge cycles for odor reduction
- Enabling safe evaporator operation outside fume hoods
By adding programmed vent-and-vacuum purge cycles at the end of a run, residual solvent concentration is reduced by several orders of magnitude, enabling safe operation outside fume hoods.