Issue 8, 2012
From the journal:

Analytical Methods

A novel method to determine ciprofloxacin by enhanced electrochemiluminescence of Tb(bpy)23+–K2S2O8 system in aqueous solution

Junying Liu,a   Kun Chen,a   Baojun Lia  and  Yinggui Zhu*a  

* Corresponding authors

a College of Chemistry and Material Science, Anhui Normal University, No. 1 Beijing Road, Wuhu 241000, P.R. China
E-mail: ygzhu08@mail.ahnu.edu.cn

Abstract

A simple and rapid electrochemiluminescence (ECL) method is developed by using Tb(bpy)23+–K2S2O8 system for the determination of trace amounts of ciprofloxacin (CPFX). Conditions for ECL emission were optimized. Under optimized condition, the linear range of ECL intensity versus concentrations of CPFX is 6 × 10−8 to 1.0 × 10−6 mol dm−3 with a relative standard deviation (R.S.D.) of 3.8% (n = 11) and the detection limit is 1.4 × 10−9 mol dm−3 for CPFX. The ECL emission spectra (the peaks are at 490, 545, 585 and 620 nm) match the characteristic emission spectrum of Tb3+, indicating that the emission is from the excited state of Tb3+. The enhanced mechanism of Tb(bpy)23+–K2S2O8 ECL system was proposed. This method was successfully applied to determine CPFX in tablets.

Graphical abstract: A novel method to determine ciprofloxacin by enhanced electrochemiluminescence of Tb(bpy)23+–K2S2O8 system in aqueous solution

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Article information

DOI
https://doi.org/10.1039/C2AY25316J
Article type
Paper
Submitted
28 Mar 2012
Accepted
10 May 2012
First published
10 May 2012

Anal. Methods, 2012,4, 2355-2360

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A novel method to determine ciprofloxacin by enhanced electrochemiluminescence of Tb(bpy)23+–K2S2O8 system in aqueous solution

J. Liu, K. Chen, B. Li and Y. Zhu, Anal. Methods, 2012, 4, 2355 DOI: 10.1039/C2AY25316J

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