Abstract

Segmented capillaries comprising two segments with different surface charges of polymer layers are prepared. One segment with a neutral surface charge is responsible for separation and another one with negatively charged surface provides the electro-osmotic flow adjustment. The average electro-osmotic flow rate is found to correlate with the length of negatively charged segment. A mathematical model is suggested to describe electromigration performances of segmented capillaries depending on the segments length ratio also taking into account the stationary phase/coating with definite surface properties (ξ—potential) or electroosmotic flow rate.

Details

Title
Mathematical model of segmented capillary electromigration performances depending on stationary phase physicochemical properties
Author
A Yu Shmykov 1 ; Kornienko, V A 2 ; Krasovskii, A N 1 ; Mjakin, S V 2 ; Bubis, N A 1 ; L Sh Boridko 1 ; Kuznetzov, L M 3 ; Fedorov, A A 1 ; Kurochkin, V E 1 

 Institute for Analytical Instrumentation, RAS, St. Petersburg, Russia 
 St. Petersburg State Institute of Technology (Technical University), Russia 
 St. Petersburg State University of Economics, Russia 
Publication year
2018
Publication date
Jun 2018
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2572332216
Copyright
© 2018. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.