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Development of a new gas sensor for binary mixtures based on the permselectivit...

Membrane-based gas sensors were developed and used for determining the composition on bi-component mixtures in the 0–100% range, such as oxygen/nitrogen and carbon dioxide/methane (biogas). These sensors are low cost and are aimed at a low/medium precision market. The paper describes the use of this sensor for two gas mixtures: carbon dioxide/methane and carbon dioxide/helium. The membranes used are poly(...