Compact Combination Freeze Dryer/Vacuum Concentrator

Compact Combination Freeze Dryer/Vacuum Concentrator

8 Jun 2015
Lois Manton-O'Byrne, PhD
Executive Editor

Product news

Genevac has announced that its popular miVac SpeedTrap cold trap can now be used for freeze drying or configured as a combined concentration / freeze drying workstation with a miVac vacuum concentrator.

Utilising the updated miVac SpeedTrap with continuous chill mode in conjunction with the miVac Super Vacuum pump, up to 250ml of water, or other solvents such as 1,4- dioxane, may be freeze dried in a single operation. Samples to be dried are simply placed in the rotor of the miVac concentrator and dried at full vacuum. The vacuum boils the samples at below their freezing point, therefore the samples freeze and the ice sublimes away, leaving the sample as a dry powder. To reduce drying times a pre-concentration step, at a controlled vacuum, can be easily incorporated.

The miVac SpeedTrap and Super Vaccum pump may also be used as a stand-alone freeze drier. A range of accessories have been designed by Genevac to allow the SpeedTrap to directly accept pre-frozen samples in either flasks or vials. Simply attach the freeze drying accessory jar in place of the regular SpeedTrap collection vessel. Flasks can be attached to the valves, or vials may be placed directly in the accessory jar, using the holders provided.

Being only being only 212 mm (8.3 inches) wide the miVac SpeedTrap offers a compact and cost effective solution for low volume freeze drying. As a combined system the miVac provides a versatile concentration and freeze drying tool for busy Life Science labs.

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Refrigerators Freezers and CryogenicsRefrigerators, Freezers & Cryogenics can be used for preservation or experimental purposes. Types of freezers include deep freeze, -80C°C, ultra-low temperature, explosion proof, cryogenic and controlled rate freezers. Freezing is also used in freeze-drying equipment for dehydration processes. Feature to consider in freezers include temperature control and recorders, failure alarms and self-closing mechanisms.PumpsLaboratory pumps are devices used to move liquids and gases by vacuum or positive displacement. The pressures/vacuums generated are determined by the type of pump used. High vacuum pumps include diffusion, ion, roots and turbopumps; for primary/medium vacuum applications see rotary vane pumps, scroll & diaphragm pumps. For the positive displacement of liquids explore a range of syringe and peristaltic pumps, as well as fluid aspirators. Discover the best pumps in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Evaporators and Freeze DryersCentrifugal evaporation is used for solvent removal from a sample. This is a useful technique for sample concentration or sample drying. Many centrifugal evaporators are modular with a central vacuum pump for generating low pressure. Useful features of evaporators or vacuum ovens include minimal solvent bumping, solvent resistance, computer control, temperature regulation and benchtop design.Vacuum