Air-assisted liquid–liquid microextraction used for the rapid determination of organophosphorus pesticides in juice samples

You, Xiao‐Zeng; Xing, Zhuokan; Liu, Fengmao; Jiang, Naiwen

doi:10.1016/j.chroma.2013.08.080

Cited by 53 publications

(20 citation statements)

References 31 publications

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“…Several methods have been reported for the determination of OPs in different matrices (e.g., mangoes, fruit juices, honey and vegetables) using direct-immersion mode (Filho et al, 2010;Corte´s-Aguado et al, 2008;Campillo et al, 2006) or head-space mode (Kin and Huat, 2010). Other new microextraction approaches such as air-assisted liquid-liquid microextraction (You et al, 2013), stir bar (Hu et al, 2013) and cloud point have also been reported.…”

Section: Introductionmentioning

confidence: 98%

Determination of organophosphorus pesticide residues in vegetables using solid phase micro-extraction coupled with gas chromatography–flame photometric detector

Sapahin

Makahleh

Saad

2019

Arabian Journal of Chemistry

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An adequate and simple analytical method based on solid-phase microextraction (SPME) followed by gas chromatography-flame photometric detection (GC-FPD) for the determination of eleven organophosphorus pesticide residues (i.e., ethoprophos, sulfotep, diazinon, tolclofos-methyl, fenitrothion, chlorpyrifos, isofenphos, methidathion, ethion, triazophos, leptophos) in vegetables samples (cabbage, kale and mustard) was developed. Important parameters that influence the extraction efficiency (i.e., fibre type, extraction modes, extraction time, salt addition, desorption time and temperature) were systematically investigated. Four types of commercially available fibres (i.e., 50/30 lm divinylbenzene/carboxen/polydimethylsiloxane (DVB/CAR/PDMS), 65 lm polydimethylsiloxane/divinylbenzene (PDMS/DVB), 100 lm polydimethylsiloxane (PDMS), and 85 lm polyacrylate (PA)) were evaluated. PA fibre exhibited the best performance and was used for the rest of the studies. The optimised extraction conditions were: extraction time, 30 min at room temperature; stirring speed, 1275 rpm; salt content, 10% NaCl; desorption time and temperature, 11 min at 260°C; and no pH adjustment of the sample extract. The method was validated over the range 0.1-100 lg/L. Repeatabilities were satisfactory, ranging between 2.44% and 17.9% for all analytes. The limits of detection and quantitation ranged from 0.01 to 0.14 and 0.03 to 0.42 lg/L, respectively. The method was applied to twenty local vegetable (cabbage, kale * Corresponding authors.

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Section: Introductionmentioning

confidence: 98%

Determination of organophosphorus pesticide residues in vegetables using solid phase micro-extraction coupled with gas chromatography–flame photometric detector

Sapahin

Makahleh

Saad

2019

Arabian Journal of Chemistry

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“…In recent years, many pretreatment techniques have been used such as dispersive liquid-liquid microextraction (DLLME) (You et al 2013), solid-phase extraction (SPE) (Xie et al 2013), supercritical fluid extraction (SFE) (Cuong et al 2012), solid-phase microextraction (SPME) (Saraji et al 2013), matrix solid-phase dispersion extraction (MSPDE) (Guan et al 2011), and stir bar sorptive extraction (SBSE) (Yu and Hu 2009). Among them, SPE is the most widely used and commercialized technique because it is simple, stable, and easily automated (Zhao et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Determination of Three Trace Organophosphorus Pesticide Residues in Vegetables Using Molecularly Imprinted Solid-Phase Extraction Coupled with High-Performance Liquid Chromatography

Wang

Zhang

et al. 2015

Food Anal. Methods

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In this study, a molecularly imprinted polymer that can selectively recognize dimethoate, isocarbophos, and methyl parathion was synthesized. Using this compound as sorbent, a new method for simultaneous determination of the three organophosphorus pesticides by molecularly imprinted solid-phase extraction coupled with high-performance liquid chromatography was established. The factors affecting the preconcentration and sensitivity were studied in detail. Under optimal conditions, the limits of detection of this method for dimethoate, isocarbophos, and methyl parathion were 19.78, 8.73, and 17.41 μg/kg, respectively. The relative standard deviation for five replicates of 0.01 mg/L-mixed solutions was in the range of 1.8-4.2 %. Cucumber sample spiked with the three organophosphorus pesticides at levels of 0.125 and 0.250 μg/g were examined using this method, good recoveries were obtained ranging from 82.5 to 95.6 %. Moreover, this method was also successfully used for the detection of the three organophosphorus pesticides in cauliflower sample.

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“…By this action, fine organic droplets are formed, and the extraction solvent is entirely dispersed in the sample solution. After centrifugation of the cloudy solution formed, the extractant is settled down at the bottom of the centrifuge tube or gathered on the surface of sample and used for further analysis [4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Organic solvent-free air-assisted liquid–liquid microextraction for optimized extraction of illegal azo-based dyes and their main metabolite from spices, cosmetics and human bio-fluid samples in one step

Barfi

Asghari

Rajabi

et al. 2015

Journal of Chromatography B

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Air-assisted liquid–liquid microextraction used for the rapid determination of organophosphorus pesticides in juice samples

Cited by 53 publications

References 31 publications

Determination of organophosphorus pesticide residues in vegetables using solid phase micro-extraction coupled with gas chromatography–flame photometric detector

Determination of organophosphorus pesticide residues in vegetables using solid phase micro-extraction coupled with gas chromatography–flame photometric detector

Simultaneous Determination of Three Trace Organophosphorus Pesticide Residues in Vegetables Using Molecularly Imprinted Solid-Phase Extraction Coupled with High-Performance Liquid Chromatography

Organic solvent-free air-assisted liquid–liquid microextraction for optimized extraction of illegal azo-based dyes and their main metabolite from spices, cosmetics and human bio-fluid samples in one step

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