This is an introduction to a method for evaluating adsorption amounts based on the free space measured at various times during the measurement!
In this document, we introduce the improvement of reproducibility of BET specific surface area by AFSM using figures and graphs. The Free Space Continuous Measurement; AFSM: Advanced Free Space Measurement (patented) is a method that evaluates the amount of adsorption based on the free space measured in real-time during the measurement, without needing to maintain the liquid level of the refrigerants such as LN2 or LAr during adsorption isotherm measurements. By using the free space measured at each adsorption equilibrium point, it is possible to consider changes in room temperature during the measurement and changes in the temperature of liquid nitrogen due to oxygen dissolution, enabling accurate and highly reproducible evaluation of adsorption amounts. *For more details, please refer to the PDF document or feel free to contact us.
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