Montmorillonite/polyaniline/polyamide nanocomposite as a novel stir bar coating for sorptive extraction of organophosphorous pesticides in fruit juices and vegetables applying response surface methodology

Ayazi, Zahra; Jaafarzadeh, Raana; Matin, Amir Abbas

doi:10.1039/c7ay00579b

Cited by 23 publications

(5 citation statements)

References 33 publications

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“…The validated method was subjected to a comparative analysis with other analytical methods [35–39]. Table 6 presents the LODs, extraction time, and recovery percentages for different methods including the developed method.…”

Section: Resultsmentioning

confidence: 99%

“…Average recoveries were higher than 91% and the coefficient of variation (CV) was in the 2−6% range. The validated method was subjected to a comparative analysis with other analytical methods [35][36][37][38][39]. Table 6 presents the LODs, extraction time, and recovery percentages for different methods including the developed method.…”

Section: Reusability and Applicationmentioning

confidence: 99%

See 1 more Smart Citation

Green magnetic snail shell hydroxyapatite sorbent for reliable solid‐phase extraction of pesticides from water samples

Sghaier

Labidi

Abdallah

et al. 2023

J of Separation Science

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To address sustainability issues, the green synthesis of nanomaterials has recently received considerable attention. This article addresses a novel and cost‐effective adsorbent for the extraction of eight phenyl‐N‐methylcarbamate insecticides from water samples. We first synthesized a magnetite/hydroxyapatite nanocomposite using snail shell powder via an environmental friendly approach. The morphology and physicochemical properties of magnetic hydroxyapatite were characterized by Fourier transform infrared spectroscopy, energy‐dispersive X‐ray spectroscopy, and scanning electron microscopy. Magnetic extraction parameters were optimized using a Doehlert matrix. Under optimum conditions, the magnetic extraction coupled with a LC–MS method shows good linearity with R2 ≥ 0.9982, suitable intra‐ and interday precision, and limits of detection and quantification in the range of 0.052–0.093 μg/L and 0.11–0.31 μg/L, respectively. Satisfactory relative recoveries of all carbamates were achieved from fortified water samples in the range of 93.89–101.01%.

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Section: Resultsmentioning

confidence: 99%

Section: Reusability and Applicationmentioning

confidence: 99%

Green magnetic snail shell hydroxyapatite sorbent for reliable solid‐phase extraction of pesticides from water samples

Sghaier

Labidi

Abdallah

et al. 2023

J of Separation Science

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“…The pH of the sample solution can affect the surface charge and adsorbent properties of adsorbents, whilst also affecting the charge on analyte molecules via ionization/de-ionization processes. Accordingly, the effect of pH (3)(4)(5)(6)(7)(8)(9)(10)(11) on the percentage recovery of the five kinds of OPPs was investigated. As shown in Fig.…”

Section: Optimization Of Opp Extraction Conditionsmentioning

confidence: 99%

“…Various sample pretreatment procedures, such as solid-phase extraction (SPE), stir-bar sorptive extraction, dispersive liquid-liquid microextraction, and solid-phase micro extraction (SPME), have previously been explored for capturing OPP residues from different sample matrices [8][9][10][11] . Most of these approaches have inherent disadvantages, such as being time-consuming and diffusion limited.…”

Section: Introductionmentioning

confidence: 99%

Facile synthesis of magnetic covalent organic framework nanocomposites for the enrichment and quantification of trace organophosphorus pesticides in fruit juice

Fu,

Sun,

Liu

et al. 2024

Food Science and Human Wellness

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Organophosphorus pesticides (OPPs) in foods pose a serious threat to human health, motivating the development of novel analytical methods for their rapid detection and quantification. A magnetic covalent organic framework (M-COF) adsorbent for the magnetic solid-phase extraction (MSPE) of OPPs from foods was reported. M-COF was synthesized by the Schiff base condensation reaction of 1,3,5-tris (4-aminophenyl)benzene and 4,4-biphenyldicarboxaldehyde on the surface of amino-functionalized magnetic nanoparticles. Density-functional theory (DFT) calculations showed that adsorption of OPPs onto the surface of M-COF involved hydrophobic effects, Van der Waals interactions, π-π interactions, halogen-N bonding, and hydrogen bonding. Combined with gas chromatography-mass spectrometry (GC-MS) technology, the MSPE method features low limits of detection for OPPs (0.002-0.015 µg/L), good reproducibility (1.45%-6.14%), wide linear detection range (0.01-1 µg/L, R≥ 0.9935), and satisfactory recoveries (87.3%-110.4%). The method was successfully applied for the trace analysis of OPPs in spiked fruit juices.

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“…Additionally, the percentage effects of various parameters on the extraction efficiency were obtained using the Pareto analysis as follows [27]:…”

Section: Optimization With Central Composite Designmentioning

confidence: 99%

A monolithic mixed matrix membrane based on silver nanoparticle/nylon‐6 nanocomposite: A novel coating for stir bar sorptive extraction of organophosphorus pesticides

Ayazi

Esfahlan

2021

Separation Science Plus

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In this research, a novel monolithic mixed matrix membrane based on silver nanoparticles reinforced nylon 6 was prepared by in situ reduction of silver nitrate salt in a formic acid solution of nylon 6. The phase separation method was employed to deposit prepared nanocomposite onto a stainless steel substrate. The characterization of nylon 6 and silver nanoparticles/nylon 6 nanocomposite coated stir bars were conducted applying scanning electron microscopy, X-ray diffraction, and energy dispersive X-ray spectroscopy. The prepared stir bar was employed for the stir bar sorptive extraction of organophosphorus pesticides such as ethion, phosalone, and chlorpyrifos in environmental water samples applying gas chromatography with mass spectrometry. The effect of the silver nanoparticles doping level in the nanocomposite on the extraction efficiency of the monolithic mixed matrix membrane was studied. Multivariate optimization based on the central composite design was employed to study and optimize essential parameters affecting the extraction and elution steps. The limits of detection were 0.2 and 0.3 ng/mL and the linear dynamic ranges were in the concentration range of 0.7-1000 and 1-1000 ng/mL for all analytes. The method precision based on relative standard deviation by performing six replicates ranged from 2.4 to 7.4% for spiked distilled water (100 ng/mL).

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Montmorillonite/polyaniline/polyamide nanocomposite as a novel stir bar coating for sorptive extraction of organophosphorous pesticides in fruit juices and vegetables applying response surface methodology

Abstract: A montmorillonite/polyaniline/polyamide nanocomposite was introduced as a novel stir bar coating which can overcome the drawbacks of commercial PDMS stir bars.

Cited by 23 publications

References 33 publications

Green magnetic snail shell hydroxyapatite sorbent for reliable solid‐phase extraction of pesticides from water samples

Green magnetic snail shell hydroxyapatite sorbent for reliable solid‐phase extraction of pesticides from water samples

Facile synthesis of magnetic covalent organic framework nanocomposites for the enrichment and quantification of trace organophosphorus pesticides in fruit juice

A monolithic mixed matrix membrane based on silver nanoparticle/nylon‐6 nanocomposite: A novel coating for stir bar sorptive extraction of organophosphorus pesticides

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