Degassers

Consistent and reliable surface area results depend upon proper sample preparation procedures. In terms of B.E.T. analysis, the limiting step in rate of throughput is often sample preparation. The complete degassing of samples can often require several hours, while surface area measurements may require as little as 15 minutes.

Quantachrome manufactures several models of degassers to fulfill your sample preparation needs.

Autosorb Degasser

The gold-standard in vacuum sample preparation for physisorption analyzers; individual temperature control and ramp rates for all six stations, plus optional use of a timer. Built-in cold trap for efficient removal of condensibles at low degassing temperatures and clean vacuum. Turbopump version available for rapid, high-vacuum degassing. Comes complete with heating mantles and vacuum pump. Sample cells not included.

MasterPrep Degasser

Vacuum/Flow preparation unit for Quadrasorb-SI and Autosorb-6B. Individually heated stations with programmable temperature ramp. Individual cooling stations. Connects to PC for easy setup and data logging. Vacuum pump and sample cells not included

FloVac Degasser/Flow Degasser

Recommended for all surface area analyzers. Six sample ports, single temperature zone: ideal for quality control and fixed protocol applications. Choose from flow/vacuum or flow-only models. Vacuum pump and sample cells not included.

Thermoflow Degasser

Flow-through preparation unit for Monosorb surface area analyzer. Each of three stations has independent temperature controls. Comes complete with heating mantles and sample cell assemblies.

Review recent papers citing use of Quantachrome degassers:

TITLE: Measurement of airborne nanoparticle surface area using a filter-based gas adsorption method for inhalation toxicology experiments
AUTHORS: Lebouf , Stefaniak, Chen, Frazer & Virji - National Institute for Occupational Safety and Health, USA
INSTRUMENT: Flovac Degasser
USAGE: Blank and particle-laden filter samples were degassed under light vacuum at 120 °C for 24 h prior to analysis.
View paper

TITLE: Influence of artificial gastric juice composition on bioaccessibility of cobalt-and tungsten-containing powders
AUTHORS: Stefaniak, Virji, Harvey et al - National Institute for Occupational Safety and Health, USA
INSTRUMENT: Flovac Degasser
USAGE: all samples were outgassed for at least three hours ... to remove water from the powder surface.
View paper

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Autosorb Degasser

MasterPrep Degasser

FloVac Degasser/Flow Degasser

Thermoflow Degasser

For more information contact us.