Determination of sunset yellow, allura red, and fast green using a novel magnetic nanoadsorbent modified with Elaeagnus angustifolia based on magnetic solid-phase extraction by HPLC

Abstract

Sunset yellow (SY), allura red (AR) and fast green (FG) are frequently used in commercial food products, although they are considered to be hazardous to public health due to their toxic efficacy and high exposure risk potency. In this study, a new, rapid, and reliable method based on a magnetic solid-phase extraction (MSPE) was developed for the simultaneous determination of SY, AR, and FG. Fe 3 O 4 modified with Elaeagnus angustifolia was used for the first time as an adsorbent (Fe 3 O 4 -EA) in MSPE. It was characterized with scanning electron microscopy, Brunauer Emmet Teller surface area analysis and X-ray diffraction. MSPE parameters were optimized in terms of pH, adsorption, and elution time and elution volume. High-performance liquid chromatography was used for dye quantitation. Analytical separation was performed by applying ammonium acetate buffer, acetonitrile, and methanol as the mobile phase to a C 18 reverse-phase analytical column. Intraday and inter-day repeatability of the method performed at the concentration of 0.2, 1.0 and 2.0 µg/mL exhibited <8.1% RSD (n=3). The limit of detection values was between 0.05-0.1 µg/mL. The adsorption data of SY, AR and FG on Fe 3 O 4 -EA were fitted with the Langmuir model with q max values of 45.0, 70.4 and 73.0 mg/g, respectively.

Modeling sunset yellow removal from fruit juice samples by a novel chitosan-nickel ferrite nano sorbent

“…Determination of the molecule's surface area helps to calculate the surface occupied by the molecule, the sorbent amount, and the total sample area. The surface area of the synthesized Cs@NiFe 2 O 4 NPs was measured using the BET test 57 . Based on the results, the surface area of the particle was 59.134 m 2 g −1 , the medium pore diameter was 13.22 nm, the micropore volume was 0.279 cm 3 g −1 , and the porosity was meso-type (Fig.…”

Voltammetric Sensor Based on the Combination of Tin and Cerium Dioxide Nanoparticles with Surfactants for Quantification of Sunset Yellow FCF

“…In recent years, various methods for the detection and determination of SY FCF [6,7], such as high-performance liquid chromatography (HPLC) with UV-Vis [8][9][10] and massspectrometric detection [11,12], thin-layer chromatography (TLC) [13,14], capillary electrophoresis [15], spectrophotometry [16][17][18] and near-infrared spectroscopy [19], and enzymeand quantum dot-linked immune sorbent-based assays [20,21], have been established.…”

“…Multi-walled carbon nanotubes after acid treatment 9. Square-wave voltammetry 10. Carboxylated multi-walled carbon nanotubes 11.…”