Development of magnetic octadecylsilane particles as solid‐phase extraction adsorbent for the determination of fat‐soluble vitamins in fruit juice‐milk beverage by capillary liquid chromatography

Abstract

A sensitive, fast and simple method based on magnetic octadecylsilane particles was developed for the extraction of three fat-soluble vitamins followed by capillary LC (CLC) analysis with UV detection. Magnetic octadecylsilane particles were prepared based on three-step reactions including co-precipitation, sol-gel polymerization and alkylation. The characterization of the prepared product was studied by scanning electron microscope and Fourier-transform infrared spectrometry. The particles were used as magnetic SPE adsorbent for the extraction of fat-soluble vitamins in fruit juice-milk beverage. The extraction condition and efficiency of the particles for fat-soluble vitamins were investigated. By coupling magnetic SPE with capillary LC with UV detection, low concentrations of fat-soluble vitamins in fruit juice-milk beverage can be detected without the interference from other substances in the sample matrix.

Surfactant-Alumina-Coated Magnetic Nanoparticles as an Efficient Aldehydes Adsorbent Prior Their Determination by HPLC

“…Figure 3a displays the FT-IR spectrum of the bare magnetic nanoparticles. The band of Fe 3 O 4 was appeared at 583 cm −1 (Hu et al 2010). The Al-O band was observed from 400 to 900 cm −1 (Lui et al 2003) (Fig.…”

“…Moreover, the surface of MNPs can be easily modified to achieve selective sample extraction. Surface modification can be accomplished by physical and/or chemical adsorption of the desired molecules to coat the surface, depending on the specific application (Bojdi et al 2016;Faraji et al 2010;Hu et al 2010). Due to the unique interfacial behavior of surfactants, these materials have been used for modifying the surface of MNPs.…”

Recent advances and future trends in new materials for sample preparation

“…Chen et al published interesting reviews on this issue [41]. More recently, Hu et al [42] synthesized magnetic octadecylsilane particles based on the sol-gel technology as sorbent for the extraction of fat-soluble vitamins in fruit juice-milk beverage by SPE and HPLC-UV.…”

Magnetic octadecyl‐based matrix solid‐phase dispersion coupled with gas chromatography with mass spectrometry in a proof‐of‐concept determination of multi‐class pesticide residues in carrots

“…Depending on their functionalization, they can be used for the preconcentration of analytes from liquid samples and the magnetic separation and molecular identification of biomolecules, organic and inorganic species. Up until now, magnetic nanomaterials properly modified with organic moieties have been used for the sample preparation of solid matrices after they have first been extracted with an organic solvent . Also, magnetic nanoparticles have been successfully employed in combination with graphitized carbon black for purification purposes using a modified QuEChERS method .…”