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Direct evidence for the electroconvective mechanism of neutral amino acid transport during electrodialysis

Vera Ivanovna Vasil'eva 1
Vera Ivanovna Vasil'eva
, 
Ali M Saud 2
Ali M Saud
, 
Elmara Malikovna Akberova 1
Elmara Malikovna Akberova
1 Department of Chemistry, Voronezh State University, Voronezh, Russian Federation
2 Faculty of Science, Tishreen University, Latakia, Syrian Arab Republic
10.1016/j.mencom.2023.02.041
Published 2023-02-13
Communication , Volume 33, Issue 2, 275-278
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Vasil'eva V. I., Saud A. M., Akberova E. M. Direct evidence for the electroconvective mechanism of neutral amino acid transport during electrodialysis // Mendeleev Communications. 2023. Vol. 33. No. 2. pp. 275-278.
GOST all authors (up to 50) Copy
Vasil'eva V. I., Saud A. M., Akberova E. M. Direct evidence for the electroconvective mechanism of neutral amino acid transport during electrodialysis // Mendeleev Communications. 2023. Vol. 33. No. 2. pp. 275-278.
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TY - JOUR
DO - 10.1016/j.mencom.2023.02.041
UR - https://mendcomm.colab.ws/publications/10.1016/j.mencom.2023.02.041
TI - Direct evidence for the electroconvective mechanism of neutral amino acid transport during electrodialysis
T2 - Mendeleev Communications
AU - Vasil'eva, Vera Ivanovna
AU - Saud, Ali M
AU - Akberova, Elmara Malikovna
PY - 2023
DA - 2023/02/13
PB - Mendeleev Communications
SP - 275-278
IS - 2
VL - 33
ER -
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@article{2023_Vasil'eva,
author = {Vera Ivanovna Vasil'eva and Ali M Saud and Elmara Malikovna Akberova},
title = {Direct evidence for the electroconvective mechanism of neutral amino acid transport during electrodialysis},
journal = {Mendeleev Communications},
year = {2023},
volume = {33},
publisher = {Mendeleev Communications},
month = {Feb},
url = {https://mendcomm.colab.ws/publications/10.1016/j.mencom.2023.02.041},
number = {2},
pages = {275--278},
doi = {10.1016/j.mencom.2023.02.041}
}
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Vasil'eva, Vera Ivanovna, et al. “Direct evidence for the electroconvective mechanism of neutral amino acid transport during electrodialysis.” Mendeleev Communications, vol. 33, no. 2, Feb. 2023, pp. 275-278. https://mendcomm.colab.ws/publications/10.1016/j.mencom.2023.02.041.

Keywords

cation-exchangeresincontent
demineralization
electroconvection
electrodialysis
flicker noise spectroscopy.
heterogeneousmembrane
laser interferometry
phenylalanine
water splitting

Abstract

For the first time, direct evidence was obtained using laser interferometry and flicker-noise spectroscopy that the main cause of the increase in the transport of amino acids through a sulfonated cation-exchange membrane in intense current modes is electroconvection. The turbulent nature of electroconvective vortices at the solution/membrane interface, acidification of the solution in the demineralization compartment and a substantial intensification of amino acid fluxes under over-limiting current modes were revealed. This indicates the electroconvective destruction of the barrier effect of the solution layer with a high pH value near the cation-exchange membrane.

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