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Magnetic deep eutectic solvent based ultrasound-assisted liquid-liquid microextraction method for determination of hexanal and heptanal in edible oils followed by gas chromatography-flame ionization detection

Abstract

The use of a novel magnetic deep eutectic solvent (MDES), consisting of inexpensive and simple components called [choline chloride/paracresol] [FeCl4] was examined using an ultrasound assisted liquid-liquid microextraction and back extraction methods to determine hexanal and heptanal in edible oils. MDES was specified using vibrating sample magnetometry (VSM), proton nuclear magnetic resonance (1H-NMR), CHN elemental analysis, Raman and Fourier transform-infrared (FT-IR) spectroscopy. Effective factors, including the volume of back extraction solvent (μL), MDES (µL) volume, and extraction and back extraction times (min) were optimized through a Box-Behnken design. Under optimal conditions, both analytes’ calibration graphs were linear in a concentration range of 0.05-100 mg L-1, having correlation coefficients higher than 0.999. The limits of detection and quantification were in the ranges of 19-25 μg L-1 and 63-83 μg L-1, respectively. This method was successfully applied in determining target analytes in spiked edible oils samples; the relative mean recoveries ranged from 94 to 102%.

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Supplementary files

Publication details

The article was received on 10 May 2018, accepted on 02 Aug 2018 and first published on 03 Aug 2018


Article type: Paper
DOI: 10.1039/C8AY01058G
Citation: Anal. Methods, 2018, Accepted Manuscript
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    Magnetic deep eutectic solvent based ultrasound-assisted liquid-liquid microextraction method for determination of hexanal and heptanal in edible oils followed by gas chromatography-flame ionization detection

    S. babaee and A. Daneshfar, Anal. Methods, 2018, Accepted Manuscript , DOI: 10.1039/C8AY01058G

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