Magnetite-sporopollenin/graphene Oxide As New Preconcentration Adsorbent for Removal of Polar Organophosphorus Pesticides in Vegetables

Overview

Journal Environ Sci Pollut Res Int

Publisher Springer

Specialties Environmental Health
Toxicology

Date 2018 Oct 18

PMID 30328041

Citations 4

Authors

Ayuba Markus

Afeez O Gbadamosi

Adeyinka S Yusuff

Augustine Agi

Jeffrey Oseh

Affiliations

Soon will be listed here.

Abstract

In this study, a new magnetic adsorbent based on magnetite-sporopollenin/graphene oxide (FeO-SP/GO) was successfully developed. The adsorbent was applied for magnetic solid phase extraction (MSPE) of three selected polar organophosphorus pesticides (OPPs), namely, dimethoate, phenthoate, and phosphamidon, prior to gas chromatography analysis with electron capture detection (GC-μECD). The FeO-SP/GO adsorbent combines the advantages of superior adsorption capability of the modified sporopollenin (SP) with graphene oxide (GO) and magnetite (FeO) for easy isolation from sample solution. Several MSPE parameters were optimized. Under optimized conditions, excellent linearity (R ≥ 0.9994) was achieved using matrix match calibration in the range of 0.1 to 500 ng mL. The limit of detection (LOD) method (S/N = 3) was from 0.02 to 0.05 ng mL. The developed FeO-SP/GO MSPE method was successfully applied for the determination of these three polar OPPs in cucumber, long beans, bell pepper, and tomato samples. Good recoveries (81.0-120.0%) and good relative standard deviation (RSD) (1.4-7.8%, n = 3) were obtained for the spiked OPPs (1 ng mL) from real samples. This study is beneficial for adsorptive removal of toxic pesticide compounds from vegetable samples.

Citing Articles

Synthesis of a Graphene-Encapsulated FeC/Fe Catalyst Supported on Sporopollenin Exine Capsules and Its Use for the Reverse Water-Gas Shift Reaction.

Malik W, Tafoya J, Doszczeczko S, Sobrido A, Skoulou V, Boa A ACS Sustain Chem Eng. 2023; 11(44):15795-15807.

PMID: 37969887 PMC: 10630965. DOI: 10.1021/acssuschemeng.3c00495.

Current Applications of Magnetic Nanomaterials for Extraction of Mycotoxins, Pesticides, and Pharmaceuticals in Food Commodities.

Targuma S, Njobeh P, Ndungu P Molecules. 2021; 26(14).

PMID: 34299560 PMC: 8303358. DOI: 10.3390/molecules26144284.

Magnetic Solid-Phase Extraction of Organic Compounds Based on Graphene Oxide Nanocomposites.

Manousi N, Rosenberg E, Deliyanni E, Zachariadis G, Samanidou V Molecules. 2020; 25(5).

PMID: 32143401 PMC: 7179219. DOI: 10.3390/molecules25051148.

Adsorption of phenanthrene and 1-naphthol to graphene oxide and -ascorbic-acid-reduced graphene oxide: effects of pH and surfactants.

Wang F, Jia Z, Su W, Shang Y, Wang Z Environ Sci Pollut Res Int. 2019; 26(11):11062-11073.

PMID: 30788701 DOI: 10.1007/s11356-019-04549-9.

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