Enrichment of polychlorinated biphenyl 28 from aqueous solutions using Fe3O4 grafted graphene oxide

Zeng, Shaolin; Gan, Ning; Weideman-Mera, Rebecca; Cao, Yuting; Li, Tianhua; Sang, Weiguo

doi:10.1016/j.cej.2012.12.030

Cited by 107 publications

(47 citation statements)

References 36 publications

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“…Moreover, benefit from delocalized π-electron system from graphene sheets, the material could extract benzene series compounds via π-π interaction [14,15]. And in order to simplify the preconcentration procedure, it is widely used to combine graphene with Fe 3 O 4 microspheres to separate sorbents from matrix via an external magnetic field [16,17].…”

Section: Introductionmentioning

confidence: 99%

Development of magnetic graphene @hydrophilic polydopamine for the enrichment and analysis of phthalates in environmental water samples

Wang

Song

Deng

2015

Talanta

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Section: Introductionmentioning

confidence: 99%

Development of magnetic graphene @hydrophilic polydopamine for the enrichment and analysis of phthalates in environmental water samples

Wang

Song

Deng

2015

Talanta

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“…Figure S3), which enables simple isolation of Fe 3 O 4 nanoparticles from solution by an external magnetic field. 43 Optimization of MHSPE-DLLME process…”

Section: Extraction Procedures Of the Proposed Methodsmentioning

confidence: 99%

Mixed-Hemimicelle Solid Phase Extraction Followed by Dispersive Liquid-Liquid Microextraction of Amphetamines from Biological Samples

Khalilian¹,

Rezaee²

2016

Journal of the Brazilian Chemical Society

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In this work, the synthesized Fe 3 O 4 nanoparticles was coated by sodium dodecyl sulfate and then it was used as a sorbent in mixed-hemimicelle solid phase extraction of some amphetamines, as psychoactive drugs, from biological samples. This extraction method was combined with dispersive liquid-liquid microextraction to enhance enrichment factors of targeted analytes. Effect of different parameters influencing the hybrid extraction performance, such as sodium dodecyl sulfate amount and sample pH, were investigated. The method showed linearity in the range of 1.0-250 and 2.0-250 µg L -1 for the most of analytes in urine and plasma samples, respectively. The limits of detection, based on signal to noise of 3, were found 0.1-0.2 and 0.3-0.5 µg L -1 in urine and plasma samples, respectively. The results of the intra-day and inter-day precision were less than 13.5% for all amphetamines. The amounts of relative recoveries in spiked urine and plasma samples were found in the range of 90-96 and 87-93%, respectively.

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“…Recently, GO hybrid materials have gained interest in analytical sample preparation. The GO/Fe O magnetic nanocomposite has been synthesized and used in MSPE for adsorption of polycyclic aromatic hydrocarbons (PAHs) [ 29 ], drugs [ 32 ], and PCBs [ 33 ], among others, but the number of applications is still scarce.…”

Section: Introductionmentioning

confidence: 99%

Graphene oxide/Fe3O4 as sorbent for magnetic solid-phase extraction coupled with liquid chromatography to determine 2,4,6-trinitrotoluene in water samples

2017

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A fast, simple, economical, and environmentally friendly magnetic solidphase extraction (MSPE) procedure has been developed to preconcentrate 2,4,6-trinitrotoluene (TNT) from water samples prior to determination by liquid chromatography-UV-Vis employing graphene oxide/Fe O nanocomposite as sorbent. The nanocomposite synthesis was investigated, and the MSPE was optimized by a multivariate approach. The optimum MSPE conditions were: 40 mg of nanocomposite, 10 min of vortex extraction, 1 mL of acetonitrile as eluent, and 6 min of desorption in an ultrasonic bath. Under the optimized experimental conditions, the method was evaluated obtaining a preconcentration factor of 153. The linearity of the method was studied from 1 to 100 µg L (N!=!5), obtaining a correlation coefficient of 0.994. The relative standard deviation and limit of detection This is a previous version of the article published in Analytical and Bioanalytical Chemistry. 2017, 409(10): 2665-2674. doi:10.1007 were found to be 12% (n!=!6, 10 µg L ) and 0.3 µg L , respectively. The applicability of the method was investigated, analyzing three types of water samples (i.e., reservoir and drinking water and effluent wastewater) and recovery values ranged between 87 and 120% (50 µg L spiking level) showing that the matrix had a negligible effect upon extraction. Finally, the semiquantitative Eco-Scale metrics confirmed the greenness of the developed method.

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Enrichment of polychlorinated biphenyl 28 from aqueous solutions using Fe3O4 grafted graphene oxide

Cited by 107 publications

References 36 publications

Development of magnetic graphene @hydrophilic polydopamine for the enrichment and analysis of phthalates in environmental water samples

Development of magnetic graphene @hydrophilic polydopamine for the enrichment and analysis of phthalates in environmental water samples

Mixed-Hemimicelle Solid Phase Extraction Followed by Dispersive Liquid-Liquid Microextraction of Amphetamines from Biological Samples

Graphene oxide/Fe3O4 as sorbent for magnetic solid-phase extraction coupled with liquid chromatography to determine 2,4,6-trinitrotoluene in water samples

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