Novel coated wire potentiometric sensor for selective determination of Mn(II) ions in various authentic samples

• DOI: 10.1007/s13738-020-02135-2
• Publication Date: 2021-01-03T00:06:17Z
• Authors: Refaat F. Aglan; Hazem H. Mahmoud; Ahmed M. Rashad; Hosam M. Saleh
• Keywords: 01 natural sciences; 0104 chemical sciences

The current study described a novel covered platinum wire ion-selective electrode sensor that depends on Schiff base N-salicylidene-o-aminophenol that is synthesized as an ionophore for rapid and easy monitoring of Mn(II) in different real samples. Within the concentration range from 1.0 × 10−7 to 1.0 × 10−1 mol/L of Mn(II) ions, the trend of evaluation curve was straight in case of low concentration value 1 × 10−7 mol/L, and Nernstian slope was 30.17 ± 0.1 mVdecade−1 and suitable within the pH range from 3.0 to 8.0. The proposed sensor has been specified by a reasonable low time for response (5 s) with high stability for more than 75 days. Moreover, this sensor demonstrated a decent selectivity for Mn(II) ions among different metal ions. The impact of different plasticizers has been investigated. The selectivity coefficients assessed through separate solution method and match potential method showed significant selectivity for Mn(II). The proposed sensor was adequately utilized to evaluate and detect Mn(II) ions in various samples. Hypothetical calculations likewise affirm the complexation nature of Mn(II) ions with N-salicylidene-o-aminophenol.