Počet záznamů: 1
Electrophoretic focusing on inverse electromigration dispersion gradient. The fundamental resolution equation and pressure-assisted performance enhancement
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SYSNO ASEP 0490545 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Electrophoretic focusing on inverse electromigration dispersion gradient. The fundamental resolution equation and pressure-assisted performance enhancement Tvůrce(i) Malá, Zdeňka (UIACH-O) RID
Gebauer, Petr (UIACH-O) RID, ORCIDCelkový počet autorů 2 Zdroj.dok. Journal of Chromatography A. - : Elsevier - ISSN 0021-9673
Roč. 1563, AUG (2018), s. 191-197Poč.str. 7 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova capillary electrophoresis ; focusing ; sulfonamides ; chlorophenols Vědní obor RIV CB - Analytická chemie, separace Obor OECD Analytical chemistry CEP GA16-09135S GA ČR - Grantová agentura ČR Institucionální podpora UIACH-O - RVO:68081715 UT WOS 000437814700019 EID SCOPUS 85048483721 DOI 10.1016/j.chroma.2018.05.076 Anotace Electrophoretic focusing on inverse electromigration dispersion (EMD) gradient is a new analytical technique based on a unique separation principle where weak non-amphoteric ionogenic species are focused, separated and transported to the detector by an EMD profile of suitable properties. The present work extends the theoretical description of this method by introducing the concept of resolution and deriving the fundamental equation expressing resolution as function of basic system parameters. The results indicate that at constant current operation, resolution is proportional to the square root of time. For variable current regimes (e.g. constant voltage), the time variable is replaced by the product of electric current and passed electric charge. Computer simulations for a model pair of substances support the validity of the presented theory and confirm the theoretical conclusion that resolution can be increased by allowing longer electromigration of the gradient in terms of time or passed charge. Pracoviště Ústav analytické chemie Kontakt Iveta Drobníková, drobnikova@iach.cz, Tel.: 532 290 234 Rok sběru 2019
Počet záznamů: 1