Quantachrome has added the Vstar vapour sorption analyser to its range of precision sorption analysers.
The Vstar is designed to provide a fast, accurate, and reliable means of obtaining water sorption isotherms on a wide variety of materials.
It can also measure adsorption isotherms of a variety of organic vapours, providing insight into the materials’ resistance to organic vapors, viability as an adsorbent for these vapours in storage or sequestration applications, and information on chemical properties.
Vstar is available in one-, two-, three-, or four-station models, each of which is available with a variety of options.
Up to four samples can be analysed simultaneously (on the Vstar 4), with manifold temperature control ensuring accuracy.
Independent sample temperature control (with additional circulators) and wider sample temperature-range provide maximum flexibility; and a high-vacuum option enables analysis of microporous materials.
Control of the manifold temperature from the vapour source to the sample eliminates the possibility of local condensation of the adsorptive and ensures accurate analysis.
Using Vstar, the hydro- phobicity of material as well as its affinity to water and organic vapours can be quickly and accurately determined.
It can measure the resistance to moisture of building materials, and tolerance of solvents and other organic materials.
For the food industry, vapour sorption measurements of the raw ingredients and the finished products can provide valuable insight for the optimisation of formulations.