Original title: Possibilities of Hollow Fiber Microextraction and Voltammetric Detection of Homovanillic acid
Authors: Hrdlička, V. ; Barek, J. ; Navrátil, Tomáš
Document type: Papers
Conference/Event: Moderní elektrochemické metody /36./, Jetřichovice (CZ), 20160523
Year: 2016
Language: eng
Abstract: The contribution deals with hollow fiber liquid phase microextraction (HF-LPME) of homovanillic acid (HVA) and its subsequent voltammetric detection. In HF-LPME, HVA is extracted from acidic sample through thin supported liquid membrane into basic aqueous acceptor solution. Since common electrode materials such as gold, platinum or glassy carbon are only able to detect HVA under acidic or neutral conditions, a new method was developed, utilizing silica gel modified carbon paste electrode (CPE). Reached limit of detection in a 10 μL drop of the HVA extract of pH 13 was 1·10-5 mol L-1.
Keywords: Hollow-fibers; Liquid phase microextraction; voltammetry
Host item entry: XXXVI. Moderní elektrochemické metody. Sborník přednášek, ISBN 978-80-905221-4-5

Institution: J. Heyrovsky Institute of Physical Chemistry AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0259891

Permalink: http://www.nusl.cz/ntk/nusl-204431


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Research > Institutes ASCR > J. Heyrovsky Institute of Physical Chemistry
Conference materials > Papers