Abstract
A feasibility study of the combination of the flow-injection analysis (FIA) technique with the piezoelectric acoustic wave sensor (thickness-shear mode, TSM) is described. Flow-injection systems provide a method to relate the hydrodynamic response of the sensor to the concentration-time profile of the analyte produced by the dispersion behaviour of sample zones. Network analysis of the TSM sensor generates multi-dimensional information on the bulk properties of the liquid sample and surface properties at the liquid/solid interface. The relationship between acoustic energy transmission and the interfacial structure, viscosity, density and dielectric constant of the analyte is discussed. The FIA-TSM system provides a rapid, reproducible detection method with enhanced sensitivity and scope. © 1992.
| Original language | English |
|---|---|
| Pages (from-to) | 167-175 |
| Journal | Analytica Chimica Acta |
| Volume | 269 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 20 Nov 1992 |
| Externally published | Yes |
Research Keywords
- Acoustic methods
- Acoustic wave sensor
- Flow injection
- Piezoelectric sensors
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