This book provides a comprehensive overview of piezoelectric sensor devices and instrumentation and their use for chemical and biochemical analysis. Sensors relying on established transducers, such as the quartz crystal microbalance (QCM) and the surface acoustic wave resonator (SAW) are covered, and novel devices like surface transverse wave (STW) resonators, film bulk acoustic resonators (FBAR) as well as non-piezoelectric devices with mass-sensitive properties are presented. As their name implies, such devices respond directly to mass changes on their surfaces and thus address the most...