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A simple electrochemical methodology for evaluation of the velocity of electroosmotic flow at the tip of polarized microcapillary

  1. 1.
    0434732 - ÚFCH JH 2016 RIV GB eng J - Článek v odborném periodiku
    Silver, Barry Richard - Holub, Karel - Mareček, Vladimír
    A simple electrochemical methodology for evaluation of the velocity of electroosmotic flow at the tip of polarized microcapillary.
    Electrochimica acta. Roč. 156, FEB 2015 (2015), s. 316-320. ISSN 0013-4686. E-ISSN 1873-3859
    Grant CEP: GA ČR GA13-04630S
    Institucionální podpora: RVO:61388955
    Klíčová slova: ion transport * electroosmotic flow * AC impendance
    Kód oboru RIV: CG - Elektrochemie
    Impakt faktor: 4.803, rok: 2015

    A simple electrochemical methodology for evaluation of the velocity of electroosmotic flow at the tip of a polarized microcapillary is herein described. The methodology relies on the application of a composite, potentiostatically-controlled voltage signal which comprises both AC and DC polarization components. Subsequent analysis of the current-time response yields an approximation for the velocity of electroosmotic flow at the microcapillary tip. Using this methodology, it is also herein shown, that previously observed low-frequency pseudo-inductive behaviour is related to an accumulation of ions into the capillary tip region under an applied potential via a mechanism based on electroosmosis.
    Trvalý link: http://hdl.handle.net/11104/0238729

     
     
Počet záznamů: 1  

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