sorptionstester
A sorptionstester is a laboratory instrument designed to measure sorption properties of solid materials by monitoring the uptake and release of a sorbate, such as a gas or liquid. It is used to determine how much sorbate a material can absorb (sorption capacity), how quickly uptake occurs (kinetics), and how the amount sorbed varies with pressure, concentration, or humidity (sorption isotherms).
Many sorption testers operate on gravimetric, volumetric, or microbalance principles. Gravimetric systems track mass changes during
Typical components include a sealed sample chamber, a controllable source of the sorbate, a balance or sensor,
Outputs from a sorption tester include adsorption and desorption isotherms, uptake curves, rate constants, and diffusion
Applications span polymer science and coatings to assess barrier properties; porous materials such as activated carbons,
Operation considerations include sample drying or degassing preconditioning, maintaining controlled temperature and environmental conditions, and regular