Amino-calixarene-modified graphitic carbon as a novel electrochemical interface for simultaneous measurement of lead and cadmium ions at picomolar level

作者：Adarakatti Prashanth Shivappa; Malingappa Pandurangappa^*

来源：Journal of Solid State Electrochemistry, 2016, 20(12): 3349-3358.

DOI：10.1007/s10008-016-3306-4

• Amino-calixarene
• Graphitic carbon
• Anodic stripping voltammetry
• Lead
• Cadmium
• Battery effluents

Amino-calixarene-derivatized graphitic carbon electrode has been used in the simultaneous quantification of lead and cadmium ions at picomolar level. The graphitic carbon has been chemically modified using amino-calixarene as an indicator molecule through microwave irradiation, and it has been characterized by NMR, mass, and Fourier transform infrared spectroscopy (FTIR) techniques. The proposed sensor has shown linearity in the concentration range 10-120 pM with detection limits of 3.3 and 3.5 pM for lead and cadmium, respectively. The proposed sensor has been successfully applied to quantify lead and cadmium levels in battery effluents, alloy materials, and sewage water sample matrices. The results obtained by the proposed sensor are in agreement with the results of the standard protocols.

• 出版日期2016-12