Preparation, characterization, and application of chitosan–kaolin-based nanocomposite in magnetic solid-phase extraction of tetracycline in aqueous samples

Lefatle, Mpho C.; Matong, Joseph M.; Mpupa, Anele; Munonde, Tshimangadzo S.; Waleng, Ngwako Joseas; Madikizela, Lawrence Mzukisi; Pakade, Vusumzi Emmanuel; Nomngongo, Philiswa N.

doi:10.1007/s11696-022-02577-3

Cited by 9 publications

(3 citation statements)

References 63 publications

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“…11,12 The use of chitosan as analytical sorbent has been reported in water and food samples, under several configuration: i.e. disk sorptive extraction, 13 ultrasound-assisted magnetic solid phase extraction, 14 pipette tip-solid phase extraction, 15 and dispersive micro-solid phase extraction (D-μ-SPE). 16 D-μ-SPE consists in introducing a sorbent directly into a small sample volume.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and evaluation of a chitosan nanomaterial as efficient sorbent for determination of fungicide residues in waters and wine by liquid chromatography high resolution mass spectrometry

Martello,

Rapti,

Bikiaris

et al. 2024

Anal. Methods

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Section: Introductionmentioning

confidence: 99%

Synthesis and evaluation of a chitosan nanomaterial as efficient sorbent for determination of fungicide residues in waters and wine by liquid chromatography high resolution mass spectrometry

Martello,

Rapti,

Bikiaris

et al. 2024

Anal. Methods

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“…18,19 Zeolites are aluminosilicates with a crystalline structure that is three-dimensional and microporous. 20 Zeolite materials possess desirable structural and chemical features, by virtue of its high hydrothermal stability, strong adsorption affinity, porous structure, negatively charged lattice, crystallinity, and ion exchangeability.…”

Section: Introductionmentioning

confidence: 99%

Development of chitosan by using a zeolite‐supported CaO derived from waste chicken eggshell to remove Acid Red 1 dye from the aqueous solution

Katowah,

Alzahrani

2024

Polymers for Advanced Techs

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ZSM‐5 zeolite modified with acetic acid eggshell and chitosan was impregnated in three distinct proportions. As nanocomposites (NCs), the purpose of the composites was to adsorb Acid Red 1 dye (AR‐1) from an aqueous solution. The characterization of chitosan@CaO/zeolite NCs included (CHT)1@(CaO/ZT)1, (CHT)1.5@(CaO/ZT)1, and (CHT)1@(CaO/ZT)1.5, as determined by FTIR, XRD, EDX, BET, TGA, and UV–Visible absorption spectroscopy. In a bulk system, the adsorption of the AR‐1 dye onto (CHT)1@(CaO/ZT)1.5 was analyzed in terms of solution temperature, pH, contact time, and NCs dosage. The most favorable parameters for achieving efficient dye adsorption were: a pH of 2, an adsorbent dosage of 0.05 g/25 mL of dye solution, and 20 mg/L of dye concentration at 22°C temperature. The reaction reached equilibrium after 120 min. The estimated adsorption efficiency of the AR‐1 dye by the prepared NCs is 99.70%. The mechanism by which the dye was sequestered onto (CHT)1@(CaO/ZT)1.5 was exothermic. The correlation coefficient (R2) for the pseudo‐second‐order adsorption kinetic model held true at different temperatures with a value of 0.99, indicating that the model accurately described the chemical interaction between the adsorbent and Acid Red (AR‐1). Adsorption processes are characterized as exothermic, feasible, and spontaneous when the Gibbs free energy (ΔG°) and enthalpy (ΔH°) changes have negative values, respectively. It was determined that the Langmuir model best described the isotherm behavior of AR‐1 dye adsorption onto (CHT)1@ (CaO/ZT)1.5. Under ideal conditions, the surface was found to be homogeneous and had a maximum adsorption capacity (qm) of 84.03 mg/g.

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“…However, the current research on TC determination when using MSPE has certain limitations: firstly, most of the synthesis processes are complicated and the synthesis conditions are harsh and use expensive, toxic materials and solvents, resulting in certain environmental pollution. Secondly, MSPE is mainly used to extract or enrich TCs from water or milk [21,[24][25][26] and is rarely applied to aquatic products. The complex substrate of aquatic products makes the successful application of MSPE more challenging.…”

Section: Introductionmentioning

confidence: 99%

One Pot Synthesis of Nanofiber-Coated Magnetic Composites as Magnetic Dispersive Solid-Phase Extraction Adsorbents for Rapid Determination of Tetracyclines in Aquatic Food Products

Li,

Bai,

et al. 2023

Molecules

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A magnetic adsorbent based on a C-nanofiber (Fe3O4@C–NFs) nanocomposite was synthesized using a simple one-pot co-precipitation method. The characterized results showed that the obtained C–nanofiber–coated magnetic nanoparticles had many attractive features such as a large specific surface area and a highly interwoven and branched mesoporous structure, as well as distinguished magnetism. The nanocomposite was then used as an adsorbent in the magnetic solid phase extraction (MSPE) of four typical tetracyclines (oxytetracycline, tetracycline, chlortetracycline, and doxycycline) in aquatic products. The TCs in the extract were determined using ultra-high-performance liquid chromatography–tandem mass spectrometry (UHPLC-MS/MS). Experimental variables of MSPE, including the sorbent amount, pH condition, adsorption and desorption time, and desorption solvent, were investigated and optimized systematically. The method validation indicated that the developed method showed good linearity (R2 > 0.995) in the range of 1.0–200 ng/mL. The average recoveries at the spiked levels ranged from 90.7% to 102.7% with intra-day and inter-day relative standard deviations (RSDs, n = 6) ranging from 3.72% to 8.17% and 4.20% to 9.69%, respectively. The limit of detection (LOD) and limit of quantification (LOQ) for the four kinds of TCs were 0.7 μg/kg and 2.0 μg/kg, respectively. Finally, MSPE based on C-nanofiber-coated magnetic nanoparticles was successfully applied to TC analysis in real aquatic products (grass carp, large yellow croaker, snakehead, mandarin fish, Penaeus vannamei, swimming crab, etc.). Compared with traditional extraction methods, the proposed method for TC analysis in aquatic products is more sensitive, effective, recyclable, and environmentally friendly.

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Preparation, characterization, and application of chitosan–kaolin-based nanocomposite in magnetic solid-phase extraction of tetracycline in aqueous samples

Cited by 9 publications

References 63 publications

Synthesis and evaluation of a chitosan nanomaterial as efficient sorbent for determination of fungicide residues in waters and wine by liquid chromatography high resolution mass spectrometry

Synthesis and evaluation of a chitosan nanomaterial as efficient sorbent for determination of fungicide residues in waters and wine by liquid chromatography high resolution mass spectrometry

Development of chitosan by using a zeolite‐supported CaO derived from waste chicken eggshell to remove Acid Red 1 dye from the aqueous solution

One Pot Synthesis of Nanofiber-Coated Magnetic Composites as Magnetic Dispersive Solid-Phase Extraction Adsorbents for Rapid Determination of Tetracyclines in Aquatic Food Products

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