Electrochemical Detection with Electrodes Outside the Test Solution : The Rebirth of Contactless Impedance Methods.
2010
Abstract
The paper critically discusses the results obtained in the studies of the theory of high-frequency impedance sensors (now mostly called capacitively-coupled contactless conductivity sensors), the principal approaches to designing impedance flow-through cells and their operational parameters, obtained at the Charles University in Prague, Department of Analytical Chemistry, and places them into the world research context. Examples are given of cell designs for continuous flow and flow-injection analyses, and of detection systems for liquid chromatography and capillary electrophoresis.
Cells for batch analyses are also presented and their operational parameters discussed.