V-Sorb 2800P system adopts static volumetric nitrogen adsorption method to determine:

- Single and multi-point BET (Brunauer, Emmett, and Teller) surface area and Langmuir

surface area

- 0.01m2/g to no upper limit(Nitrogen), 0.005 m2/g (Krypton)—surface area

- Pore volume and pore size distributions (0.35-500nm) by the BJH (Barrett, Joyner, and

Halenda) method

- User defined pore volume and total pore volume in a pore size range

- True density analysis

- Micropore distribution by the HK and SF method

- Total micropore volume by the t-Plot

- Adsorption & desorption isothermal curve

- Average particle diameter estimation

- t-plot method external surface area analysis

- Dubinin-Radushkevich (D-R)

- Dubinin-Astakhov (D-A)

- Repeatability errors ≤1%

Sample Ports: two samples’ analyzing and two

samples’ degassing concurrently

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

Vacuum Pump: built-in bipolar rotary vacuum

pump controlled by patented software which can

auto control pump’s start/stop; turbomolecular pump

Adsorbate Gas: high purity nitrogen (≥99.999%)

Ar, Kr, CO, C02, C4H10 etc. non-corrosive gases are

optional

Data Reduction: Windows®-based independent

developed Gold APP V-Gold V-Gold software TM, perfect versatility,

produced full featured and multi-model reports