SPE of gallic acid and ascorbic acid in fruits using polymerized deep eutectic solvent-modified substrate
Ali Zeraatkar Moghaddam1, Elahe Arabi1, Mehdi Shakourian-Fard2
1Department of Chemistry, Faculty of Science, University of Birjand, Birjand, South Khorasan, PO Box 97175/615, Iran.
Abstract:
Aim: Novel substrates were synthesized by porous and nonporous polymerization of deep eutectic solvents on magnetic silica nanoparticles and introduced for dispersive solid-phase extraction of two analytes. Materials & methods: The prepared substrates were characterized, and an extraction procedure was implemented to select the best substrates and eluent. The central composite design acted to optimize the effects of parameters that influenced the extraction efficiencies. Results: For gallic and ascorbic acids, the limits of detection were obtained at 0.136 and 0.165 μM, respectively, with linear ranges of 0.6-125.2 and 0.5-106.8 μM, respectively. Conclusion: The substrate produced good extractions even after being used three-times and was successfully applied for the analysis of real samples.
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