Analytical Uses of Piezoelectric Crystals: A Review

Gas sensing by AT-cut quartz crystal oscillator coated with mixed-lipid film

“…Film-coated quartz crystal microbalance sensors have enabled the detection of various individual pollutants [2][3][4], and are used for the online detection of organic compounds [5]. The response properties of the sensor are affected by physical structure and chemical character of the sensing film.…”

Development of new immunosensors for determination of contaminants in food

“…They are simple to use and economical methods. They measure changes due to mass deposits which are produced by antigenantibody interaction and are not susceptible to interferences caused by various coloring materials in the samples [15,28,29].…”

Performance specifications for technology development: Application for characterization of volatile organic compounds in the environment

“…Piezoelectric devices have been developed to measure a wide range of organic compounds (Alder and McCallum 1983;Guilbault and Jordan 1988;Fox and Alder 1989;McCallum 1989). This review of the technology examines the piezoelectric detection of VOCs.…”

“…The Sauerbrey equation (Bastiaans 1988) The theoretical sensitivity of a quartz crystal microbalance can be derived from Equation 7.1; for example, the sensitivities for a 9-MHz and a 15-MHz crystal would be about 400 Hz/mg and 2,600 Hz/mg, respectively, resulting in a theoretical limit of detection of about 1 x 10-12 g (Guilbault and Jordan 1988).…”