Sensors 2008, 8(2), 594-606; doi:10.3390/s8020594
Article

Optimalization of Poly(neutral red) Coated-wire Electrode for Determination of Citrate in Soft Drinks

Department of Analytical Chemistry, Institute of Chemical Technology, Technická 5, 166 28 Prague 6 Czech Republic
* Author to whom correspondence should be addressed.
Received: 9 October 2007; Accepted: 28 January 2008 / Published: 4 February 2008
(This article belongs to the Special Issue Electrochemical Sensors Based on Conductive Polymers)
PDF Full-text Download PDF Full-Text [315 KB, uploaded 16 September 2008 11:01 CEST]
Abstract: 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 × 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.
Keywords: conductive polymer; poly(neutral red); coated-wire electrode; citrate; real-life sample

Article Statistics

Load and display the download statistics.

Citations to this Article

Cite This Article

MDPI and ACS Style

Broncová, G.; Shishkanova, T.V.; Krondak, M.; Volf, R.; Král, V. Optimalization of Poly(neutral red) Coated-wire Electrode for Determination of Citrate in Soft Drinks. Sensors 2008, 8, 594-606.

AMA Style

Broncová G, Shishkanova TV, Krondak M, Volf R, Král V. Optimalization of Poly(neutral red) Coated-wire Electrode for Determination of Citrate in Soft Drinks. Sensors. 2008; 8(2):594-606.

Chicago/Turabian Style

Broncová, Gabriela; Shishkanova, Tatiana V.; Krondak, Martin; Volf, Radko; Král, Vladimír. 2008. "Optimalization of Poly(neutral red) Coated-wire Electrode for Determination of Citrate in Soft Drinks." Sensors 8, no. 2: 594-606.

Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert