VSTAR

High-resolution vapor sorption analyzer

The VSTAR system goes beyond basic water sorption to provide vapor and gas sorption analyses over a broad range of analysis conditions. Based on the fast and high-resolution vacuum-volumetric gas sorption technique, VSTAR can obtain analysis results in roughly half the time required by classical DVS methods. Wide chemical compatibility allows users to measure adsorption/desorption isotherms and kinetics of many species (organics, alcohols, amines, and more). The VSTAR system comes in two- or four-station versions for any level of throughput the user needs.

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Technical Specifications

Performance 2-station 4-station
Analysis stations 2 4
Transducers 3 standard and 2 optional 5 standard and 4 optional
Gas/vapor inputs 1 vapor source
1 gas adsorbate port
1 dedicated helium port
Vacuum pump External oil pump or internal turbomolecular pump
Pressure transducers range 1 bar standard
(10 torr or 100 torr optional)
Transducer accuracy <0.05 % FS
Manifold/vapor source temperature range 40 ºC to 110 ºC
Sample analysis temperature range -20 ºC to 100 ºC