Comparison of QuEChERS sample preparation methods for the analysis of pesticide residues in fruits and vegetables

Lehotay, Steven J.; Son, Kyung Ae; Kwon, Hye-Young; Koesukwiwat, Urairat; Fu, Wusheng; Maštovská, Kateřina; Hoh, Eunha; Leepipatpiboon, Natchanun

doi:10.1016/j.chroma.2010.01.044

Cited by 751 publications

(421 citation statements)

References 94 publications

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“…Three types of QuEChER content were studied and after extraction pH in the extract was measured, obtained in each extraction are presented in Figure 2. These results are in agreement with Lehotay et al (2010) with higher recoveries obtained for citrate buffered. Thus, QuECh-ERS C was used for the extraction of carbaryl in rat feces.…”

Section: Extraction Proceduressupporting

confidence: 82%

QuEChERS: a sample preparation for extraction of carbaryl from rat feces

Paíga

Domingues

Wanderley

et al. 2015

Toxicological & Environmental Chemistry

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Carbamate compounds are an important group of cholinesterase inhibitors. There is a need for creating awareness regarding the risks of the inadequate carbamate use in the residential areas due to potential adverse human effects. Carbaryl is a commonly used pesticide worldwide. A simple, fast, and high-throughput method was developed employing liquid chromatography with fluorescence detector to determine carbaryl residues in rat feces. The extraction was performed by using a rapid, easy, cheap, effective, reliable, and safe (QuEChERS) method, using acetonitrile as the extracting solvent. The parameters for the performance of the extraction method were optimized, such as ratio of mass of sample per volume of extraction solvent, QuEChERS content, and cleanup columns. Linear response was obtained for all calibration curves (solvent and matrix-matched) over the established concentration range (5 500 mg/L) with a correlation coefficients higher than 0.999. The achieved recovery was 97.9% with relative standard deviation values of 1.1% (n 4) at 167 mg/kg fortified concentration level and the limits of detection and quantification were 27.7 and 92.3 mg/kg, respectively.

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Section: Extraction Proceduressupporting

confidence: 82%

QuEChERS: a sample preparation for extraction of carbaryl from rat feces

Paíga

Domingues

Wanderley

et al. 2015

Toxicological & Environmental Chemistry

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“…3). To improve phase separation, an extraction-partitioning step was conducted by the addition of magnesium sulfate, sodium chloride, and buffer citrate (Lehotay et al 2010). The citrate buffer salts gave recovery values higher by 12-18 % (Fig.…”

Section: Extraction and Cleanup Methods Selectionmentioning

confidence: 99%

“…One modification can be the choice of dispersive sorbent type(s), which depends on the analyte's properties and on the nature of co-extracts from the matrix. Primary and secondary amine (PSA), graphitized carbon black (GCB), or their combinations are commonly used sorbents (Lehotay et al 2010;Mantzos et al 2013;Tomasini et al 2012;Walorczyk et al 2015a). PSA retains many polar compounds, including sugars, organic acids, and fatty acids, and GCB removes pigments but adsorbs compounds with planar functionality (Walorczyk et al 2015b).…”

Section: Introductionmentioning

confidence: 99%

One-Step QuEChERS-Based Approach to Extraction and Cleanup in Multiresidue Analysis of Sulfonylurea Herbicides in Cereals by Liquid Chromatography–Tandem Mass Spectrometry

Kaczyński

Łozowicka

2016

Food Anal. Methods

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A one-step quick, easy, cheap, effective, rugged, and safe (QuEChERS)-based approach to extraction and cleanup in multiresidue pesticide analysis is presented for the first time. The experiment was designed to detect 23 sulfonylurea herbicides in a complex cereal matrix. The challenge was to choose the optimal conditions of one-step extraction and cleanup. Chitin, diatomaceous earth, and octadecyl were investigated as cleanup sorbents. Chitin, citrate buffer, and 1 % formic acid in acetonitrile yielded the best results. The effectiveness of sulfonylureas extraction was evaluated at three different spiking levels (0.005, 0.05, and 0.5 mg kg −1 ) in wheat, rye, and oat using liquid chromatography-tandem mass spectrometry. The one-step QuEChERS provided recoveries in the 70-120 % range for 23 sulfonylureas in all cereal matrices. Matrix effects were evaluated and were not significant for all herbicides, showing suppression or enhancement (between −19 and 13 %). Precision, calculated as relative standard deviation (RSD), was below 20 %. A linear dependence was observed in the range of 0.005-2.0 mg kg −1 , and the correlation coefficient was R 2 > 0.999. Expanded measurement uncertainty was estimated to be between 9 and 24 %, on average. The validated method was employed in analysis of 89 real grain samples.

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“…Therefore, pymetrozine residues may lead to potential health injury. Several analysis methods have been developed for residues of pymetrozine in different matrices, such as differential pulse polarographic method (DPP), liquid chromatography (LC) with UV/vis, diode array detection (DAD), and mass spectrometry (MS); however, the fast and efficient method is LC with mass spectrometry (MS) (Guan et al 2013;Abd Al-Rahman et al 2012;Lehotay et al 2010;Mercan et al 2007;Lee et al 2011). A simple, sensitive, and selective method with LC-MS/MS for quantification of pymetrozine was developed to study the dissipation behavior and final residue of pymetrozine in rice field ecosystem.…”

mentioning

confidence: 99%

Dissipation and residue of pymetrozine in rice field ecosystem

Zhang

et al. 2015

Environ Monit Assess

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The dissipation and residue of pymetrozine in rice field ecosystem were studied based on a novel and reliable analytical method for pymetrozine in paddy water, soil, rice straw, brown rice, and rice husk. The pymetrozine residues were extracted with acetonitrile and cleaned up by Carb-NH 2 SPE cartridge and determined by high-performance liquid chromatography electrospray ionization tandem mass spectrometry (LC-ESI-MS-MS). The dissipation of pymetrozine followed first-order kinetics and its half-lives ranged from 1.7 to 1.8 days in paddy water, 5.1 to 5.7 days in soil, and 2.3 to 2.6 days in rice straw, respectively. At harvest time, the highest final residues of pymetrozine varied in soil among three geographical fields and were below the limit of detection in rice tissues. The recommended dosage was considered to be safe for human beings and animals, and the results were helpful in setting maximum residue limit for pymetrozine in rice.

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Comparison of QuEChERS sample preparation methods for the analysis of pesticide residues in fruits and vegetables

Cited by 751 publications

References 94 publications

QuEChERS: a sample preparation for extraction of carbaryl from rat feces

QuEChERS: a sample preparation for extraction of carbaryl from rat feces

One-Step QuEChERS-Based Approach to Extraction and Cleanup in Multiresidue Analysis of Sulfonylurea Herbicides in Cereals by Liquid Chromatography–Tandem Mass Spectrometry

Dissipation and residue of pymetrozine in rice field ecosystem

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