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Title: Schiff base modified Pt electrode as sensor for detecting Al(III) and Pb(II)
Authors: Deka, Kangkana
Das, Diganta Kumar
Keywords: Electrochemistry;Electrodes;Modified electrodes;Electrochemical impedance spectroscopy;Voltammetry;Aluminium;Lead
Issue Date: Aug-2017
Publisher: NISCAIR-CSIR, India
Abstract: A platinum electrode with its surface modified with the condensation product of p-phenylenediamine and acetylferrocene (PPDA-AcFc) has been fabricated by cyclic voltammetry. The square wave voltammogram of the modified electrode, PPDA-AcFc/Pt, in aqueous medium gradually shifts by 0.440 V and 0.090 V in the positive direction on interaction with Al3+ and Pb2+ respectively. Electrochemical impedance spectroscopy shows the charge transfer resistance value of PPDA-AcFc/Pt electrode increases in the case of Al3+ while it decreases in the case of Pb2+. The linear range of detection is 0-12 µM and 0-6 µM for Al3+ and Pb2+ respectively.
Page(s): 832-837
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.56A(08) [August 2017]

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