A novel approach to the uniform distribution of liquid in multi-channel (electrochemical) flow-through cells

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Authors

LACINA Karel VONDÁL Jiří SKLÁDAL Petr

Year of publication 2012
Type Article in Periodical
Magazine / Source Analytica Chimica Acta
MU Faculty or unit

Central European Institute of Technology

Citation
Web http://www.sciencedirect.com/science/article/pii/S0003267012004631
Doi http://dx.doi.org/10.1016/j.aca.2012.03.046
Field Electrochemistry
Keywords Flow injection analysis;Multi-channel electrochemical cell;Uniform liquid distribution;Amperometry
Description Four-channel flow-through electrochemical cell working in thin-layer regime was designed, fabricated and characterized experimentally and in computational fluid dynamics (CFD) simulations. The new principle of operation allows reproducible splitting of a stream of liquid into multiple flow channels. Systems comprising of 2-, 3-, 4- and 8-channels were tested. The proper function of the cell is given by the ratio of the cross-sections of the fluidic element collecting chamber and the particular flow paths among which the liquid is distributed. Suitable flow rates providing uniform liquid distribution were evaluated and the results were compared to CFD modeling. The flow-through cells designed according to the proposed principle can be simply incorporated in automated routine analysis as only one inlet and one common outlet are required.
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