Concentrators (nitrogen blowdown concentrators) are becoming increasingly used as an alternative to rotary evaporators due to both the speed of evaporation and space saving in the laboratory.
Solvent evaporation is accelerated by decreasing the partial vapour pressure of the solvent just above the surface of the liquid. The systems use a heated water bath or dry block heating with programmable temperatures and a nitrogen purge to provide high speed evaporation. The nitrogen purge and evaporated solvent are removed safely using either an integral exhaust system that can be connected to the laboratory extraction system or fume hood or can be used in a fume hood.
The MultiVap 12 – new for 2026 from Analytix, has been designed for higher levels of automation and enables simultaneous evaporation of up to 12 samples using 50ml and 200ml cups. Infrared sensors provide automatic liquid end-point detection, allowing users either to evaporate to dryness or to concentrate samples to a defined final volume.
A liquid bath ensures precise, even heating from ambient temperature to 70°C, while a vortex nitrogen purge with adjustable needle position and direction gives users greater control over evaporation performance. The system also features touchscreen operation and an alarm to signal the end of each evaporation sequence.
A further three LabTech laboratory concentrators are available from Analytix that provide solvent evaporation from six, 64 samples up to a system for 96 well plates.
For more information call +44 (0) 191 519 4504 or visit www.analytix.co.uk/contact/.
