The intrinsic dependence of the resonant frequency of a quartz crystal on
temperature is well known and generally quite small. In fact, the AT-cut quartz
crystal commonly used in QCM experiments owe their popularity to their near
zero coefficient at room temperature. As a result, the intrinsic temperature
dependence of the QCM sensor crystals is negligible at or around room
temperature (≈ 1-3 Hz/°C) and is generally ignored for monolayer
adsorption/desorption processes in the gas phase.