Stability of mercury film electrodes under the influence of high frequency (500 kHz) ultrasound

J Davis, FJ Del Campo, F Marken, RG Compton, E Cordemans

    Research output: Contribution to journalArticle

    9 Citations (Scopus)

    Abstract

    The analytical utility of coupling high frequency ultrasound (500 kHz) systems with electrochemical stripping techniques has been investigated. The stability of mercury film electrodes (on either glassy carbon or iridium substrates) under various ultrasound regimes was assessed with cavitational erosion found to occur irrespective of the substrate or position within the cell assembly. Removal of dissolved gas was found to increase the lifetime of the mercury film but only through sacrificing enhancements in mass transport. A second series of experiments investigated the influence of ultrasound frequency (20 and 500 kHz) on the stripping voltammetric determination of lead and cadmium at bare glassy carbon electrodes. The results were compared with silent conditions with the high frequency system shown to significantly enhance the accumulation of the target analyte.
    LanguageEnglish
    Pages475-480
    JournalJournal of Applied Electrochemistry
    Volume31
    Issue number4
    Publication statusPublished - Apr 2001

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    glassy carbon
    stripping
    dissolved gases
    electrodes
    iridium
    cadmium
    erosion
    assembly
    life (durability)
    augmentation
    cells

    Cite this

    Davis, J ; Del Campo, FJ ; Marken, F ; Compton, RG ; Cordemans, E. / Stability of mercury film electrodes under the influence of high frequency (500 kHz) ultrasound. In: Journal of Applied Electrochemistry. 2001 ; Vol. 31, No. 4. pp. 475-480.
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    abstract = "The analytical utility of coupling high frequency ultrasound (500 kHz) systems with electrochemical stripping techniques has been investigated. The stability of mercury film electrodes (on either glassy carbon or iridium substrates) under various ultrasound regimes was assessed with cavitational erosion found to occur irrespective of the substrate or position within the cell assembly. Removal of dissolved gas was found to increase the lifetime of the mercury film but only through sacrificing enhancements in mass transport. A second series of experiments investigated the influence of ultrasound frequency (20 and 500 kHz) on the stripping voltammetric determination of lead and cadmium at bare glassy carbon electrodes. The results were compared with silent conditions with the high frequency system shown to significantly enhance the accumulation of the target analyte.",
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    Davis, J, Del Campo, FJ, Marken, F, Compton, RG & Cordemans, E 2001, 'Stability of mercury film electrodes under the influence of high frequency (500 kHz) ultrasound', Journal of Applied Electrochemistry, vol. 31, no. 4, pp. 475-480.

    Stability of mercury film electrodes under the influence of high frequency (500 kHz) ultrasound. / Davis, J; Del Campo, FJ; Marken, F; Compton, RG; Cordemans, E.

    In: Journal of Applied Electrochemistry, Vol. 31, No. 4, 04.2001, p. 475-480.

    Research output: Contribution to journalArticle

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    T1 - Stability of mercury film electrodes under the influence of high frequency (500 kHz) ultrasound

    AU - Davis, J

    AU - Del Campo, FJ

    AU - Marken, F

    AU - Compton, RG

    AU - Cordemans, E

    PY - 2001/4

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    N2 - The analytical utility of coupling high frequency ultrasound (500 kHz) systems with electrochemical stripping techniques has been investigated. The stability of mercury film electrodes (on either glassy carbon or iridium substrates) under various ultrasound regimes was assessed with cavitational erosion found to occur irrespective of the substrate or position within the cell assembly. Removal of dissolved gas was found to increase the lifetime of the mercury film but only through sacrificing enhancements in mass transport. A second series of experiments investigated the influence of ultrasound frequency (20 and 500 kHz) on the stripping voltammetric determination of lead and cadmium at bare glassy carbon electrodes. The results were compared with silent conditions with the high frequency system shown to significantly enhance the accumulation of the target analyte.

    AB - The analytical utility of coupling high frequency ultrasound (500 kHz) systems with electrochemical stripping techniques has been investigated. The stability of mercury film electrodes (on either glassy carbon or iridium substrates) under various ultrasound regimes was assessed with cavitational erosion found to occur irrespective of the substrate or position within the cell assembly. Removal of dissolved gas was found to increase the lifetime of the mercury film but only through sacrificing enhancements in mass transport. A second series of experiments investigated the influence of ultrasound frequency (20 and 500 kHz) on the stripping voltammetric determination of lead and cadmium at bare glassy carbon electrodes. The results were compared with silent conditions with the high frequency system shown to significantly enhance the accumulation of the target analyte.

    M3 - Article

    VL - 31

    SP - 475

    EP - 480

    JO - Journal of Applied Electrochemistry

    T2 - Journal of Applied Electrochemistry

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