Title :
Real Time Kinetic Analysis with Quartz Crystal Resonator Sensors
Author :
Lucklum, Ralf ; Doerner, S. ; Schneider, Thomas ; Schlatt-Masuth, Benedikt ; Jacobs, Thomas ; Hauptmann, Peter
Author_Institution :
Inst. for Micro & Sensor Syst., Otto-von-Guericke Univ., Magdeburg
Abstract :
Fast impedance analysis-based measurements of resonant frequency (shift) and equivalent resistance (change) of liquid loaded quartz crystal resonator (QCR) sensors have been used for kinetic analysis of film formation at the interface between a liquid analyte and the sensor. Kinetic constants provide an independent set of data and allow for an unambiguous material property determination in the so-called non-gravimetric regime. A sequential injection system (SIS) has been developed which enables fast specimen sampling with minimum dispersion effects
Keywords :
crystal resonators; electric impedance; equivalent resistance; impedance analysis; kinetic constants; quartz crystal resonator sensors; real time kinetic analysis; resonant frequency; sequential injection system; Acoustic sensors; Electrical resistance measurement; Equations; Frequency measurement; Impedance measurement; Jacobian matrices; Kinetic theory; Real time systems; Resonant frequency; Sensor systems;
Conference_Titel :
International Frequency Control Symposium and Exposition, 2006 IEEE
Conference_Location :
Miami, FL
Print_ISBN :
1-4244-0074-0
Electronic_ISBN :
1-4244-0074-0
DOI :
10.1109/FREQ.2006.275441
