NDLI: Ionic Liquid-Based Surfactant Extraction Coupled with Magnetic Dispersive μ-Solid Phase Extraction for the Determination of Phthalate Esters in Packaging Milk Samples by HPLC

Content Provider	Springer Nature Link
Author	Wang, Meng Yang, Fan Liu, Le Cheng, Chunsheng Yang, Yaling
Copyright Year	2016
Abstract	A highly selective sample cleanup procedure combining ionic liquid-based surfactant extraction (ILSE) and magnetic dispersive μ-solid phase extraction (MD-μ-SPE) was triumphantly developed for the synchronously extraction of four phthalate acid esters (PAEs) in packaging milk samples prior to high-performance liquid chromatography coupled with photodiode array detector (HPLC-DAD). In this ionic liquid (IL)-based surfactant method, 1-octyl-3-methylimidazolium hexafluorophosphate ([C$_{8}$MIM] [PF$_{6}$]) was used as extraction solvent, anionic surfactant sodium linear alkylbenzene sulfonate (LAS) was used as auxiliary extraction solvent, and then sodium chloride (NaCl) was mixed to drive phase separation. The synthesized hydrophobic diatomaceous earth-supported Fe$_{3}$O$_{4}$ magnetic nanoparticles (DSMNPs) were applied as an efficient adsorbent to retrieve the analyte-containing IL and LAS. Under the optimal extraction situations, good linearity of the approach was obtained in the concentration range from 10 to 1000 ng/mL for target analytes, and the preconcentration process was rapidly accomplished in 5 min. The limits of detection (LODs) based on a signal-to-noise ratio (S/N = 3) were ranged from 1.42 to 3.57 ng/mL with the relative standard deviations (RSDs) over the range of 1.84–3.56% (n = 5). The above-mentioned method was applied to the trace analysis of four PAEs including benzyl butyl phthalate (BBP), dicyclohexyl phthalate (DCHP), di-n-butyl phthalate (DBP), and di-n-octyl phthalate (DNOP) in packaging milk samples, and recoveries were between 89.8 and 99.7%.
Starting Page	1745
Ending Page	1754
Page Count	10
File Format	PDF
ISSN	19369751
Journal	Food Analytical Methods
Volume Number	10
Issue Number	6
e-ISSN	1936976X
Language	English
Publisher	Springer US
Publisher Date	2016-12-02
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	High-performance liquid chromatography Ionic liquid-based surfactant extraction Magnetic dispersive μ-solid phase extraction Milk samples Phthalate acid esters Food Science Chemistry/Food Science Microbiology Analytical Chemistry
Content Type	Text
Resource Type	Article
Subject	Analytical Chemistry Safety Research Safety, Risk, Reliability and Quality Applied Microbiology and Biotechnology Food Science

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