Počet záznamů: 1

A Novel Voltammetric Method for the Determination of Maleic Acid Using Silver Amalgam Paste Electrode

  1. 1.
    0329271 - UFCH-W 2010 RIV DE eng J - Článek v odborném periodiku
    Niaz, A. - Fischer, J. - Barek, J. - Josypčuk, Bohdan - Sirajuddin, C. - Bhanger, M. I.
    A Novel Voltammetric Method for the Determination of Maleic Acid Using Silver Amalgam Paste Electrode.
    Electroanalysis. Roč. 21, č. 15 (2009), s. 1719-1722 ISSN 1040-0397
    Grant CEP: GA MŠk(CZ) LC06035; GA ČR GA203/07/1195
    Výzkumný záměr: CEZ:AV0Z40400503
    Klíčová slova: voltammetry * maleic acid * silver amalgam paste electrode
    Kód oboru RIV: CG - Elektrochemie
    Impakt faktor: 2.630, rok: 2009

    An efficient voltammetric method was developed for the determination of maleic acid at a silver amalgam paste electrode (AgA-PE) in Britton-Robinson buffer pH2.0. The experimental parameters, such as pH of BrittonRobinson buffer, type of the supporting electrolyte and activation of the electrode surface were optimized. Under the optimal conditions, a linear response was observed over the 2 x 10(-6) - 1 X 10(-4) mol L-1 maleic acid concentration range, determination limit being 5 x 10(-7) mol L-1. A highly stable response, with a relative standard deviation (RSD) of 1.6% for 45 repetitive measurements of I X 10-4 Mol L-1 maleic acid showed that there was no apparent surface passivation indicating the suitability of the method. The method was successfully applied for direct determination of maleic acid in drinking and river water.
    Trvalý link: http://hdl.handle.net/11104/0175355