Highly Selective Perchlorate Membrane Electrode Based on Synthesized Schiff Base Complex

• Main Authors: Mohammad Mazloum-Ardakani, Roya Mazidi, Mohammad Hossein Mashhadizadeh, Hossein Naeimi, Kobra Rabiei
• Format: Article
• Language: English
• Published: Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR 2010-09-01
• Series: Iranian Journal of Chemistry & Chemical Engineering
• Subjects: schiff base; perchlorate-selective electrode; potentiometry
• Online Access: http://www.ijcce.ac.ir/article_6647_ad38bb65126c6c578ccb16d2d0b46458.pdf

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.