Efficient electro-chemical sensor for sensitive Cd2+detection based on novel in-situ synthesized hydrazonoyl bromide (HB)

In this approach, an efficient methodology for synthesis of a novel hydrazonoyl bromide (HB) containing trifluoromethyl moiety by using fluorine-containing building blocks was achieved. The synthesized HB was fully characterized with various methods such as Infra-red spectroscopy (IR), Thin layer chromatography (TLC), 1H-NMR, 19F-NMR, 13C-NMR, and elemental analyses. In-situ potential examination as reliable technique, an electrochemical sensor based on prepared HB was used for the selective detection of environmental hazardous heavy metal ion, Cd2+. The fabricated sensor was found to perform linearly over the concentration range (linear dynamic range) of 0.1 nM∼0.01 mM of Cd2+ ion and the sensitivity (51.12 µAµM−1cm−2) and detection limit (53.85±2.69 pM) of the proposed sensor were estimated from the slope of calibration curve (plot of…