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Cadmium-sensitive electrode based on tetracetone derivatives of p-tert-butylcalix[8]arene

Abstract : The performance of a cadmium-sensitive electrode based on the tetracetone derivatives of p-tert butylcalix[8]arene was investigated. The ion-sensitivity of the calix[8]arene was examined via cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), X-ray photoelectron spectrometry, UV/Vis spectroscopy and FT-IR spectroscopy. The sensitive membrane containing the active ionophore was cast onto the surface of a gold electrode. The electrode exhibited a linear relationship between the charge transfer resistance (Rct) and the logarithm of the detected ion concentration. The cathodic peak at a potential of 0.56 V increased linearly as the Cd2 + ion concentration increased. The detection limit of the device reached 10− 7 M with high sensitivity toward cadmium.
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Submitted on : Monday, November 4, 2013 - 5:14:00 PM
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C. Dernane, A. Zazoua, I. Kazane, Nicole Jaffrezic-Renault. Cadmium-sensitive electrode based on tetracetone derivatives of p-tert-butylcalix[8]arene. Materials Science and Engineering: C, Elsevier, 2013, 33 (7), pp.3638-3643. ⟨10.1016/j.msec.2013.04.049⟩. ⟨hal-00879753⟩



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