Spectrophotometric Determination of Allura Red AC and Tartrazine in Food Products Using Hydrophobic Deep Eutectic Solvents as an Environmentally Sustainable Micro-Extractor

This paper reports the application of hydrophobic deep eutectic solvents (HDES) as an environmentally friendly alternative for liquid-phase microextraction (LPME) Allura Red AC and Tartrazine in food products spectrophotometric determination these analytes. The HDES used this work were prepared by mixing octanoic acid (OctAc) or decanoic (DecAc) tetrabutylammonium bromide (N4444-Br) a molar ratio 2:1. An investigation was also carried out regarding effects sample pH, volume, concomitants on analytical performance proposed method. curves obtained (OctAc)-tetrabutylammonium linear concentration ranges 0.05 to 2.00 mg L-1 0.04 2.14 L-1, with limits detection 0.005 0.004 respectively. technique successfully applied products.