Abstract:
:A combination of switchable-hydrophilicity liquid-liquid microextraction prior to magnetic nanoparticle-based dispersive solid-phase microextraction is proposed for the determination of erythrosine using UV/Vis spectrophotometry at 520 nm. Under optimum conditions (i.e., 1.0 mL octylamine as the extraction solvent, 1.5 mL of 10.0 M sodium hydroxide as the phase separation trigger, pH 4.0, 750 µL of acetone as the eluent, 10.0 mg of Fe3O4@XAD-16 as the adsorbent, and 15.0 mL of the sample solution), the method showed a superior analytical performance with limits of detection less than 25.9 ng mL-1, limits of quantitation less than 86.3 ng mL-1 and linear dynamic ranges ranging between 86.3 and 1000 ng mL-1. Percentage relative standard deviations were less than 4.1 and 7.2% for intra-day and inter-day, respectively. The method was successfully applied for the extraction and determination of erythrosine in food samples and other consumer products with recoveries in the range of 94.6-103.9% and within extraction time of 7.8 min per sample.
journal_name
Food Chemjournal_title
Food chemistryauthors
Hassan M,Uzcan F,Alshana U,Soylak Mdoi
10.1016/j.foodchem.2021.129053subject
Has Abstractpub_date
2021-01-14 00:00:00pages
129053eissn
0308-8146issn
1873-7072pii
S0308-8146(21)00055-8journal_volume
348pub_type
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