Voltammetric determination of citric acid and quinine hydrochloride using polypyrrole–pentacyanonitrosylferrate/platinum electrode

Awasthi, Sajeela and Srivastava, Alok and Singla, M.L. (2011) Voltammetric determination of citric acid and quinine hydrochloride using polypyrrole–pentacyanonitrosylferrate/platinum electrode. Synthetic Metals, 161 (15-16). pp. 1707-1712. ISSN 0379-6779

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Official URL: http://www.sciencedirect.com/science/article/pii/S...

Abstract

Cyclic voltammetry was used to investigate the electrochemical behavior of citric acid (CA) and quinine hydrochloride (QH) at a polypyrrole-pentacyanoferrate/Platinum (PPY–PCNFe/Pt) electrode in aqueous medium. The analytical plots obtained were found to be linear in the concentration range between 1.0 and 9.0 mM for both the analyte solutions. The detection limits (3δ) were found to be 1.17 × 10−4 M and 1.08 × 10−5 M for CA and QH analyte solutions, respectively. It was further observed that the diffusion of ionic species into and out of the polymeric film made the PPY–PCNFe/Pt electrode highly electroactive thereby enabling it to efficiently detect the analyte solutions having concentration as low as 1 mM.

Item Type: Article
Uncontrolled Keywords: Cyclic voltammetry;Pentacyanonitrosylferrate;Polypyrrole; Citric acid;Quinine hydrochloride
Subjects: CSIO > Agri - Instrumentation
Depositing User: Ms. J Shrivastav
Date Deposited: 21 Apr 2012 22:50
Last Modified: 24 Apr 2012 09:43
URI: http://csioir.csio.res.in/id/eprint/276

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