ThermoFisher Scientific Surfer applies the principle of static volumetric gas adsorption (physical and chemical adsorption) under controlled conditions (temperature and pressure) to determine micro structural properties of solids and powders.
Surfer will determine, depending on the configuration and the type of experiment, the following physical properties:
- Specific surface area (m2/g)
- Pore size distribution in the meso, micro, ultra-micro and extended mesopore ranges
- Total pore volume (cc/g)
- Exposed metal surface area and metal dispersion in catalysts
Improved design of stainless steel manifold (temp. control ±0.01°C) to reach unmatched vacuum degree over the sample thus permitting investigation on new ultra-micro porous materials
- Improved design of stainless steel manifold (temp. control ±0.01°C) to reach unmatched vacuum degree over the sample thus permitting investigation on new ultra-micro porous materials
- Extremely reduced manifold dead volume and new design sample temperature coolant level control (LN2 level ±0.02 mm) permit to improve gas detection sensitivity by extreme pressure stabilization.
- Reduced necessary sample load (i.e. special requirements in the pharmaceutical field, in metal powder and catalysts applications) reduces by almost 50% the experiment time
- New gas injection system based on a proprietary design to introduce precisely extremely small as well as very large amount of adsorptive. The injection system does not add any dead volume to the system during the gas equilibration.
- New long lasting liquid coolant level control for best stabilization of the pressure in the system
Wide range of available configurations:
- Surfer Rapid (low cost mostly for QC/QA applications: surface area and mesopore size)
- Surfer STD (for most of applications: surface area and mesopore size)
- Surfer Micro (for microporous materials or experiments using Kr with very low surface areas)
- Surfer Ultra (top of the line for ultra-microporous materials characterization & Kr)
New gas injection algorithm allows completely automatic analytical parameters setup. Available in these modes:
- Mode “Auto” – Surfer takes care automatically of the analytical parameters independently on the sample nature and mass
- Mode “Choose Points” – User defines pressures at which data must be collected
- Mode “Micropores” – Automatic special operation to give best resolution for micro and ultramicroporous materials
- New instrument design, bench top, chassis optimization reduces space on the bench
- New electronic allows complete instrument control by a PC connected through LAN/Serial port
- New A/D converter 24 bit, 6 channels for highest resolution in pressure reading
- New and improved pumping system permits to reach unmatched vacuum degree in the sample area thus enabling the investigation of ultra micropores
- Availability of a dry primary vacuum pump in alternative to the standard oil pumps for clean and precise investigation of ultra-micropores avoiding possible sample contamination
The degasser (part of Surfer)
- Extremely reduced bench space due to independent degasser (can be placed aside or under the Surfer bench or in a different lab)
- Degasser connectable to Surfer primary vacuum or to external vacuum system giving more possible customization
- Sample degasser with three stations up to 450°C with independent vacuum access and temperature control
- Two valve system permits to evacuate safely very fine powders in the degasser
Neben der kompakten Gerätesoftware mit Auswertemöglichkeit und der bekannten Advanced Data Processing software ADP steht auch ein Auswertemodul für die NLDFT bereit:
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