Artículos de revistas
Understanding capacitively coupled contactless conductivity detection in capillary and microchip electrophoresis. Part 1. Fundamentals
Registro en:
Electroanalysis. Wiley-v C H Verlag Gmbh, v. 17, n. 13, n. 1198, n. 1206, 2005.
1040-0397
WOS:000230700900010
10.1002/elan.200503237
Autor
Brito-Neto, JGA
da Silva, JAF
Blanes, L
do Lago, CL
Institución
Resumen
Capacitively coupled contactless conductivity detection ((CD)-D-4) is presented in a progressively detailed approach. Through different levels of theoretical and practical complexity, several aspects related to this kind of detection are addressed, which should be helpful to understand the results as well as to design a detector or plan experiments. Simulations and experimental results suggest that sensitivity depends on: 1) the electrolyte co-ion and counter-ion; 2) cell geometry and its positioning; 3) operating frequency. Undesirable stray capacitance formed due to the close placement of the electrodes is of great importance to the optimization of the operating frequency and must be minimized. 17 13 1198 1206