Magnetic deep eutectic solvent-based ultrasound-assisted liquid–liquid microextraction for determination of hexanal and heptanal in edible oils followed by gas chromatography–flame ionization detection. Issue 34 (17th August 2018)

• Record Type: Journal Article
• Authors: Babaee, Shirin; Daneshfar, Ali
• Is Part Of: Analytical methods. Volume 10:Issue 34(2018)
• Page Start: 4162
• Page End: 4169
• Publication Date: 2018-08-17
• Subjects: Chemistry, Analytic -- Periodicals; Analytical biochemistry -- Periodicals; Chemical laboratories -- Standards -- Periodicals; 543.1905
• DOI: 10.1039/c8ay01058g
• Languages: English
• ISSNs: 1759-9660

Abstract

Abstract : Use of a novel magnetic deep eutectic solvent (MDES), consisting of the inexpensive and simple components [choline chloride/ para -cresol] [FeCl4 ] was examined using ultrasound-assisted liquid–liquid microextraction and back-extraction methods to determine hexanal and heptanal in edible oils. Abstract : Use of a novel magnetic deep eutectic solvent (MDES), consisting of the inexpensive and simple components [choline chloride/ para -cresol] [FeCl4 ] was examined using ultrasound-assisted liquid–liquid microextraction and back-extraction methods to determine hexanal and heptanal in edible oils. The MDES was specified using vibrating sample magnetometry (VSM), proton nuclear magnetic resonance ( 1 H-NMR), CHN elemental analysis, as well as Raman and Fourier-transform-infrared (FT-IR) spectroscopy. Effective factors, including the volume of back-extraction solvent (μL), MDES (μL) volume, as well as extraction and back-extraction times (min) were optimized through a Box–Behnken design. Under optimal conditions, the calibration graphs of both analytes were linear at 0.05–100 mg L −1, with correlation coefficients >0.999. The limit of detection and limit of quantification was 19–25 μg L −1 and 63–83 μg L −1, respectively. This method was used to determine target analytes in spiked samples of edible oils; the relative mean recovery ranged from 94% to 102%.