title: 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 Cd(2+) ion concentration increased. The detection limit of the device reached 10(-7) M with high sensitivity toward cadmium.
authors.affiliation: Université de Jijel, Laboratoire de Matériaux: Elaborations-Propriétés-Applications, BP 98, Ouled Aissa, 18000 Jijel, Algeria.
authors.forename: C
authors.initials: C
authors.lastname: Dernane
authors.forename: A
authors.initials: A
authors.lastname: Zazoua
authors.forename: I
authors.initials: I
authors.lastname: Kazane
authors.forename: N
authors.initials: N
authors.lastname: Jaffrezic-Renault
mesh_terms: D000096:Acetone / Q000737:chemistry*; D000179:Acrylates / Q000737:chemistry*; D002104:Cadmium / Q000737:chemistry*; D047250:Calixarenes / Q000737:chemistry*; D017097:Electric Impedance; D004563:Electrochemistry; D004566:Electrodes; D006046:Gold; D008958:Models, Molecular; D056951:Photoelectron Spectroscopy; D013056:Spectrophotometry, Ultraviolet; D017550:Spectroscopy, Fourier Transform Infrared
chemical_list: D000179:Acrylates; C558402:p-tert-butylcalix(8)arene; D002104:Cadmium; D047250:Calixarenes; D000096:Acetone; D006046:Gold
keywords: Cadmium-sensitive electrode; Calix[8]arene; Impedance spectroscopy; Sensors