The Secrets to High-Quality Micropore Isotherms | 1: Proper Sample Preparation
In this four-part series, Anton Paar experts reveal how to achieve consistent, accurate results using the Autosorb gas sorption analyzer. Each 10-15-minute session focuses on a critical factor in micropore isotherm quality, offering practical insights for reliable, high-resolution data.
Before a single data point is collected, the quality of your results depends on how well your sample is prepared. This session takes an in-depth look at the techniques, tools, and considerations that define successful sample preparation.
See how flowing gas and vacuum degassing compare in performance, learn best practices for controlled heating to remove contaminants, and discover how to prevent pore structure alteration during pretreatment.
The discussion will also cover the benefits of automated degassing and demonstrate the value of high vacuum systems combined with a cold trap. These features help make preparation easier, faster, and more reliable — ensuring that every isotherm you measure starts from a clean foundation.
Dr. Brian Rodenhausen is the Principal Application Scientist in the Particle and Porous Materials Characterization group at Anton Paar USA. He has over a decade of experience teaching users the theory and practice of analytical instruments, as well as advising them on the design of experiments and interpretation of results. His research background focused on label-free characterization of asorbate layers at the solid-liquid interface. He received his Ph.D. in chemical engineering from the University of Nebraska-Lincoln (UNL) and did post-doctoral work at UNL and the Leibniz Institute of Polymer Research in Dresden, Germany.
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