Poly Ionic Liquid based Aqueous two-Phase Extraction Coupled with UV Spectrophotometry for Separation/analysis of Allura red in Food

Poly ionic liquidwas introduced as aqueous two-phase extraction (ATPE) sorbent accompanied with UV spectrophotometry for Allura red (AR) separation in food samples. Different parameters, like pH value, adsorption temperature and time , were studied. the preconcentration factor for AR was 27. The linear range, detection limit (DL), correlation coefficient (R) and relative standard deviation (RSD) were found to be 0.10-9.00 μg/mL, 5.2 μg/L, 0.9987 and 3.10% (n=3, c=4.00 μg/mL).This method was successfully applied for separation / analysis of allura red pigment in food samples with satisfactory results.

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The authors declare no conflict of interest.

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The datasets used in this study are openly available at [repository link] and the source code is available on GitHub at [GitHub link].

This work did not receive any external funding.