Electrochemical behavior of azo food dye at nanoclay modified carbon electrode-a nanomolar determination

In the current research, nanoclay particles modified carbon paste surface employed to determine sunset yellow (SY), a well-known azo food dye in nano level. With several astonishing characteristics such as strong adsorption, large surface area, and simple surface modification, the modifier grabbed some interest. The surface features of the modifier were premeditated by SEM (Scanning electronic microscopy) and XRD (X-ray diffraction) analysis. Unlike other techniques adopted for the electro oxidation study. A tremendous electrocatalytic behavior of the nanoclay modified electrode was explored towards the dye oxidation and a linear vibrant relationship in 0.001 mu M-0.1 mu M range with a LOD value of 0.2 nM. The main practical applicability of the fabricated sensor was explored by determining the dye in tablets, food materials including biological fluids. The low detection limit with good sensitivity, stability and specificity makes the modified sensor valuable for the entire analysis of SY.