Gravimetric and non-gravimetric chemical quartz crystal resonators

Abstract Chemical Sensors based on quartz crystal resonators are often assumed to work as microbalance. In this paper we study the contribution from a viscoelastic coating to the sensor response. Different coating properties as well as analyte sorption, which may cause a pure mass increase or both a mass increase and a change in the viscoelastic parameters of the coating, are under investigation. Resonators in gaseous and liquid environments are studied.

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