Synergistic effect of Zr MOF modified functionalized carbon nano fibres for determination of tert-butylhydroquinone in food samples

Abstract

In modern life, people often neglect to consider their eating habits. Antioxidants are primarily used as food additives due to their stability and low toxicity. TBHQ is a commonly used antioxidant in food products as an additive. Electrochemical sensors represent the most efficient method for detecting TBHQ. Porous Zr-MOF material has a large active surface area but low conductivity, which can be improved by forming a nanocomposite. The Zr MOF can be decorated onto f-CNF using a sonochemical method. A synergistic increase in current was observed in Zr-MOF/f-CNF modified electrode. The amperometric method was used to determine TBHQ in potato chips and biscuits. The results showed that the nanocomposite shows a wide linearity range (0.0025–2505.3 μM), stupendous LOD (0.14 nM), and conventional sensitivity (0.56 μAμM⁻¹ cm⁻²). The recovery outcomes from the analysis with real samples confirm the practicality of the nanocomposite.