%0 Journal Article
%T Optimalization of Poly(neutral red) Coated-wire Electrode for Determination of Citrate in Soft Drinks
%A Gabriela Broncov£¿£¿£¿£¿
%A Tatiana V. Shishkanova
%A Martin Krondak
%A Radko Volf
%J Sensors
%D 2008
%I MDPI AG
%X This report presents an optimization of potentiometric measurements withcitrate-selective electropolymerized poly(neutral red) electrodes. The optimal backgroundelectrolyte for these measurements is a TRIS buffer with nitrate at pH 8.5. The electrodesdescribed here exhibit stable and reproducible near-Nernstian response to citrates with alow detection limit of 6    ¡ª 10-6 M. Electrodes polymerized from sulfuric acid andacetonitrile are compared in detail. Simple and sensitive method for quantification ofcitrate in real-life samples by potentiometry with poly(neutral red) electrodes arepresented. Data from potentiometric measurements of citrate are compared with capillaryelectrophoresis.
%K conductive polymer
%K poly(neutral red)
%K coated-wire electrode
%K citrate
%K real-life sample
%U http://www.mdpi.com/1424-8220/8/2/594/