Mesostructured Silicas as Cation-Exchange Sorbents in Packed or Dispersive Solid Phase Extraction for the Determination of Tropane Alkaloids in Culinary Aromatics Herbs by HPLC-MS/MS

Toxins, Journal Year: 2022, Volume and Issue: 14(3), P. 218 - 218

Published: March 17, 2022

In this work, Hexagonal Mesoporous Silica (HMS) and Santa Barbara Amorphous-15 (SBA-15) mesostructured silicas were synthesized functionalized with sulfonic acid groups. The materials (HMS-SO3− SBA-15-SO3−) evaluated as strong cation exchange sorbents for sample extract clean-up, by solid phase extraction (SPE) dispersive extraction, to determine atropine (At) scopolamine (Sc) in commercial culinary aromatic herbs. Under optimized conditions, 0.25 g of was subject solid–liquid acidified water (pH 1.0), good recovery percentages achieved At Sc using 75 mg HMS-SO3− SPE the clean-up stage, prior their determination HPLC-MS/MS. proposed method validated a thyme showing recoveries range 70–92%, linearity (R2 > 0.999), adequate precision (RSD ≤ 14%) low limits (MDL 0.8–2.2 µg/kg MQL 2.6–7.2 both analytes). Sixteen herbs samples (dried thyme, basil coriander leaves) analysed found fourteen over an interval <5–42 μg/kg, whereas three sixteen studied (between <5–34 μg/kg). amount some confirms importance setting maximum levels

Language: Английский

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Spherical C18-functionalized ordered mesoporous silica packed on micro-solid phase extraction cartridges for simultaneous determination of twenty-three alkaloids in flower extract supplements

Advances in Sample Preparation, Journal Year: 2025, Volume and Issue: unknown, P. 100174 - 100174

Published: March 1, 2025

Language: Английский

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Fe₃O₄@SiO₂–BD–DADB-COF is proposed as a novel magnetic covalent organic framework for the determination and extraction of 15 macrolide antibiotics in water and honey

RSC Advances, Journal Year: 2025, Volume and Issue: 15(11), P. 8111 - 8120

Published: Jan. 1, 2025

A novel magnetic covalent organic framework Fe 3 O 4 @SiO 2 –BD–DADB-COF was designed and synthesized, which used as an adsorbent for solid-phase extraction (MSPE) the determination of 15 MALs.

Language: Английский

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Ordered Mesoporous Silicas in Modern Versions of Solid-Phase Extraction

Journal of Analytical Chemistry, Journal Year: 2025, Volume and Issue: 80(1), P. 1 - 14

Published: Jan. 1, 2025

Language: Английский

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Application of magnetic dispersive solid phase extraction combined with solidification of floating organic droplet-based dispersive liquid–liquid microextraction and GC-MS in the extraction and determination of polycyclic aromatic hydrocarbons in honey

Food Additives & Contaminants Part A, Journal Year: 2024, Volume and Issue: 41(2), P. 175 - 187

Published: Jan. 22, 2024

A magnetic dispersive solid phase extraction method combined with solidification of floating organic droplet-based liquid–liquid microextraction has been validated for the polycyclic aromatic hydrocarbons from honey samples. For this purpose, a carbonised cellulose–ferromagnetic nanocomposite was used as sorbent through extraction. preparation sorbent, first, cellulose nanoparticles were created by treating filter paper concentrated solution sulfuric acid. Then, prepared loaded onto Fe3O4 coprecipitation. In process, few mg added to diluted and dispersed in it using vortex agitation. The particles then separated adsorbed analytes eluted an solvent. eluent taken after mixing water–immiscible solvent following procedure. By performing process under obtained optimum conditions, low limits detection (0.08–0.17 ng g−1) quantification (0.27–0.57 g−1), satisfactory precision (relative standard deviations ≤ 5.0%), wide linear range (0.57–500 great coefficients determination (r2≥ 0.9986) obtained.

Language: Английский

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Simultaneous extraction of polycyclic aromatic hydrocarbons and tetracycline antibiotics from honey samples using dispersive solid phase extraction combined with dispersive liquid-liquid microextraction before their determination with HPLC-DAD

Journal of Food Composition and Analysis, Journal Year: 2024, Volume and Issue: 131, P. 106179 - 106179

Published: March 20, 2024

Language: Английский

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Recent Trends in Graphene-Based Sorbents for LC Analysis of Food and Environmental Water Samples

Molecules, Journal Year: 2023, Volume and Issue: 28(13), P. 5134 - 5134

Published: June 30, 2023

This review provides an overview of recent advancements in applying graphene-based materials as sorbents for liquid chromatography (LC) analysis. Graphene-based are promising analytical chemistry, including applications chromatography. These can be functionalized to produce unique extraction or stationary phases. Additionally, supported various and have consequently been applied devices sample preparation. employed diverse applications, food environmental LC summarizes the application water analysis last five years (2019 2023). Offline online preparation methods, such dispersive solid phase microextraction, stir bar sorptive extraction, pipette tip in-tube solid-phase others, reviewed. The also columns produced with separating components contaminants. reported phases columns. packed, monolithic, open tubular used capillary electrochromatography modes.

Language: Английский

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Magnetic dispersive solid‐phase extraction of some polycyclic aromatic hydrocarbons from honey samples using iron (III) oxinate nanocomposite as an efficient sorbent

Journal of Separation Science, Journal Year: 2022, Volume and Issue: 45(14), P. 2642 - 2651

Published: May 5, 2022

In this work, iron (III) oxinate magnetic nanocomposite was synthesized and employed as an efficient sorbent for the dispersive solid-phase extraction of some polycyclic aromatic hydrocarbons from honey samples. following, liquid-liquid microextraction procedure used further preconcentration analytes. The prepared characterized using Fourier transform infrared spectrophotometry, X-ray diffractometry, vibrating sample magnetometry, energy spectroscopy, scanning electron microscopy. results verified successful formation sorbent. process, added into aqueous solution mixture vortexed. After completing adsorption supernatant phase separated in presence a magnet analytes adsorbed onto were eluted by acetonitrile. Then, microliter-level 1,1,1-trichloroethane mixed with obtained acetonitrile injected NaCl solution. Finally, one microliter sedimented gas chromatography-flame ionization detector after centrifugation. Under optimum conditions, great repeatability (relative standard deviation equal or less than 5 6% intra- interday precisions, respectively), acceptable recoveries (59-84%), high enrichment factors (118-168), low limits detection quantification (0.16-0.36 0.56-1.22 ng/g, respectively) acquired.

Language: Английский

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Magnetic solid phase extraction coupled to HPLC-UV for highly sensitive analysis of mono-hydroxy polycyclic aromatic hydrocarbons in urine

Analytica Chimica Acta, Journal Year: 2023, Volume and Issue: 1285, P. 342020 - 342020

Published: Nov. 12, 2023

Language: Английский

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Nitrogen-doped hollow quadruple-shelled carbon-silicon nanosphere as a solid-phase microextraction adsorbent for the extraction of 19 polycyclic aromatic hydrocarbons in milk samples

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 485, P. 136815 - 136815

Published: Dec. 9, 2024

Language: Английский

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