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Abstract
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Currently, the electrochemical method as one of the fast, accurate, and reliable techniques for
detecting heavy metals[1]. Among heavy metals, Cadmium (Cd) and Chromium (Cr) levels
are studied because they can cause water pollution and can be toxic, and non-biodegradable
which influences the health of living things[2]. In this research, a novel bidentate ligand was
prepared through an eco-friendly condensation method. In the next step, new bidentate ligand
was successfully employed as a linker complexing agent in combination with Ni on glassy
carbon electrode through in situ self-assembly template, by Cyclic voltammetry methodology
strategy for preparation of metal-organic frameworks (MOFs) and determination of trace Cd
and Cr at -1.00 V to 1.5 V, 100 mV/s, in ionizable solution. To obtain results with high
accuracy, this study tested several electrochemical parameters[3]. Based on the results
processed, the Cr and Cd level in the solution can be measured well in ionizable solution. This
work have been validated and showed good results with correlation coefficients of Cr and Cd.
The detection limit for Cr and Cd were 152 ppm and 218 ppm, respectively. Cr and Cd metal
RSDs also showed good values (<5%).
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