V-Sorb 2800P surface area and pore size distribution analyzer parameters

Analysis Method: static volumetric nitrogen adsorption principle

Versatility: Adsorption and desorption isotherms, Single and multi-point BET surface area analysis, Langmuir method surface area, Average particle diameter estimation, T-plot external surface area, True density analysis, BJH total pore volume and pore size distribution, T-plot micropore analysis, MP micropore, Horvath-Kawazoe (HK) micropore, Saito-Foley (SF) micropore, Dubinin-Astakhov (DA) micropore, Dubinin-Radushkevich (DR) micropore surface area, carbon black (STSA) etc.

Measuring Ranges: 0.01m²/g to no known upper limit (surface area); 0.35 to 400nm (pore size)

Accuracy: repeatability errors ≤1%

Vacuum System: V-Sorb unique monolithic manifolds and solenoid valve control system, greatly reduce the dead volume; improve the adsorbate micro-change sensitivity

Coolant Level Prober: V-Sorb original coolant level control system with temperature probe, ensure the coolant level unchanged when compares with sample cells in the whole analysis process

Sample Treatment: the whole treatment procedures are controlled by dedicated software, as well with a start time preset function which can realize unattended operation at night

Sample Ports: two samples analyzing and two degassing concurrently

Pressure Measurement: imported sectional measuring dual pressure transducer, notably improve the measuring accuracy at low P/P_o point, 0-1000Torr (0-133Kpa), 0-10Torr (0-1.33Kpa)

Transducer Accuracy: imported silicon thin film transducer, accuracy can reach 0.1% of real reading, better than 0.1% of F.S.(full-scale

Partial Pressure: P/P_o controllable accuracy range is 5x10^-6-0.995

Ultimate Vacuum: 4x10^-2Pa (3x10^-4Torr)

Vacuum Pump: built-in bipolar vacuum pump controlled by patented software which can auto control pump’s start/stop