Surfactant-coupled titanium dioxide coated iron-aluminium mixed metal hydroxide for magnetic solid phase extraction of bisphenols in carbonated beverages

Abstract

In this work, the magnetic sorbents based on different surfactant-coupled titanium dioxide coated iron-aluminium mixed metal hydroxide were investigated as sorbent for extraction of bisphenol compounds. The structure, morphology, and magnetic property of the synthesized sorbents were investigated. The cetyltrimethylammonium bromide-titanium dioxide coated iron-aluminium mixed metal hydroxide (Fe-Al MMH@TiO 2 -CTAB) exhibited excellent extraction performance toward bisphenols and was selected as the sorbent for development of magnetic solid phase extraction (MSPE) method. The entire MSPE process was optimized, and the extract was analyzed by high performance liquid chromatography with photodiode array detector. The method provided wide linear calibration ranges for bisphenols between 0.3-6000 μg L À1 with maximum enrichment factors of 280. The limits of detection and limits of quantification were in the ranges of 0.08-0.3 and 0.3-1.0 μg L À1 , respectively. The proposed MSPE method was tested for determination of bisphenols in carbonated beverages. The studied carbonated beverages were mostly free of bisphenol contamination; however, BPS, BPA and BPB were detected in samples taken from defective cans. The relative recoveries ranging of 80.2-118.9% were obtained. The asprepared Fe-Al MMH@TiO 2 -CTAB sorbent provided high sorption capacities in the range of 2215-2451 mg kg À1 and could be a promising material for bisphenols in beverage samples.

Bisphenol A analysis and quantification inconsistencies via HPLC-UV: a systematic review with technical notes

“…B Overlapped main purposes with other secondary objectives of the analyzed papers [64] or by air pollution near polycarbonate molding plants [65], bee pollen [66], mussels [67] and brine shrimp [68]. Food contamination was determined in meat samples [53], beverages [55,69,70], milk [59,63,71,72], oils [56,63], and canned food products [59,71,73] with most studies revealing that BPA could be leached from the plastic can linings, packaging, and bottles [53,55,56,71,[74][75][76].…”

“…Only a few papers described HPLC methods utilizing a water-methanol mobile phase [36,57,63,65,75,76,85,86]. Moreover, Gamonchuang et al [70] separated BPA from carbonated beverages in a 57% acetonitrile-43% acetic acid mobile phase.…”

Preparation and characterization of core‐shell structured nanocomposite materials and their adsorption behavior on U (VI) from aqueous solutions

“…In addition, Elhefnawy and Elabd prepare AlBaNi-LDH nanoparticles by coprecipitation method showed good performance in U (VI) adsorption efficiency in neutral pH. [13][14][15] MnO 2 is a poorly crystalline oxide with a large specific surface area and effective adsorption ability for metal ions such as Cu (II), Cd (II), and U (VI). Manganese oxide has a typical hydrated oxide surface, and the surface hydroxyl can be combined with various metal heavy metal ions to form a hydroxyl complex, which reflects its adsorption potential for heavy metal ions.…”

“…The low‐level concentration of uranium with other interference competing ions makes the quantitative determination of U (VI) challenging. [ 3–5 ]…”

“…In addition, Elhefnawy and Elabd prepare AlBaNi‐LDH nanoparticles by co‐precipitation method showed good performance in U (VI) adsorption efficiency in neutral pH. [ 13–15 ]…”