Highly Selective Perchlorate Membrane Electrode Based on Synthesized Schiff Base Complex

Document Type : Research Note


1 Department of Chemistry, Faculty of Science, Yazd University, P.O. Box 89195-74 Yazd, I.R. IRAN

2 Department of Chemistry, Payam Noor University, Ardakan Branch, Ardakan, I.R. IRAN

3 Department of Chemistry, Tarbiat Moalem University, Tehran, I.R. IRAN

4 Faculty of Chemistry, University of Kashan, Kashan, I.R. IRAN


In this work we introduce a practical use of synthesized Schiff base metal complex in sensing application. A new perchlorate-selective electrode based on the complex N, N'-4-nitro-phenylmethanebis-(salicylaldiminato) copper (II) [CuL] as the membrane carrier was developed. The electrode exhibits a good  Nernstian slope of -55.0 ± 1.0 mV/decade and a linear range of  for perchlorate. The limit of detection is . It has a fast response time <15s and can be used for more than three months. The selective coefficients of Perchlorate-selective electrode were determined by the Fixed Interference Method (FIM) and Fixed Primary ion Method (FPM), and could be used in the pH range 4.0-9.0. It was employed as an indicator electrode for direct determination of perchlorate in real samples.


Main Subjects

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