Evaluation of QuEChERS sample preparation and liquid chromatography–triple-quadrupole mass spectrometry method for the determination of 109 pesticide residues in tomatoes

Gölge, Özgür; Kabak, Bülent

doi:10.1016/j.foodchem.2014.12.083

Cited by 107 publications

(39 citation statements)

References 24 publications

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“…Several sorbents have been reported as d-SPE cleanup sorbents in plant matrices, especially PSA, C18 and GCB. [51][52][53][54][55][56][57] Alternatively, sorbents such as oasis HLB ® , chitosan and fluorinated sorbent (F) have already been used. [58][59][60] Among the commonly used sorbents cited above, PSA is used for removing sugars, fatty acids, organic acids, lipids and some polar pigments, 34,61 while C18 sorbent is used for removing nonpolar compounds, such as lipids and fatty acids, from fatty matrices (lipid content > 2%).…”

Section: Optimization Of the D-spe Clean-up Stepmentioning

confidence: 99%

Determination of Phenolic Compounds in Red Sweet Pepper (Capsicum annuum L.) using a Modified QuEChERS Method and UHPLC-MS/MS Analysis and Its Relation to Antioxidant Activity

Rodrigues

Nicácio

Jardim

et al. 2019

J. Braz. Chem. Soc.

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In the present work, a fast, easy and efficient analytical method was developed and validated for the determination of phenolic compounds (4-hydroxybenzoic, vanillic, caffeic, p-coumaric, sinapic, ferulic and ellagic acids, and naringenin) in red sweet pepper. Extraction of phenolic compounds was carried out using the quick, easy, cheap, effective, rugged and safe (QuEChERS) method, followed by separation and detection using ultra-high performance liquid chromatography tandem mass spectrometry (UHPLC-MS/MS). When the acetate version of the QuEChERS method was used, higher amounts of the phenolic compounds were extracted. In the dispersive solid phase extraction (d-SPE) clean-up step, combination of 50 mg of octadecylsilane (C18) and 7.5 mg of graphitized carbon black (GCB), resulted in the greatest removal of interferents, especially carotenoids, without significant retention of phenolic compounds. The recoveries for the proposed method were 82-103%, the limits of quantification were 2-150 μg kg-1 , and the precision values expressed in terms of relative standard deviation (RSD) were ≤ 15%. The method developed was successfully applied to the analysis of different red sweet pepper cultivars.

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Section: Optimization Of the D-spe Clean-up Stepmentioning

confidence: 99%

Determination of Phenolic Compounds in Red Sweet Pepper (Capsicum annuum L.) using a Modified QuEChERS Method and UHPLC-MS/MS Analysis and Its Relation to Antioxidant Activity

Rodrigues

Nicácio

Jardim

et al. 2019

J. Braz. Chem. Soc.

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“…The mass of dSPE sorbent is also optimized with reduction of mass improving recoveries for strobilurin fungicides and neonicotinoids along with other problematic pesticides [3]. The original QuEChERS method used 25 mg PSA per mL of extract, but others have increased PSA to 50 mg per mL of acetonitrile extract to obtain recoveries >77% [8].…”

Section: Modified Quechers Procedures and Dispersive Solid Phase Extrmentioning

confidence: 99%

Sample Preparation Methods for Pesticide Analysis in Food Commodities, Biological and Environment Matrices

Raina‐Fulton¹,

Xie²

2017

Ideas and Applications Toward Sample Preparation for Food and Beverage Analysis

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This chapter focuses on sample preparation procedures for pesticide analysis of food commodities, biological and environmental matrices. This will include pesticides with a broad range of polarity including those that are more amenable to gas chromatographymass spectrometry (organochlorines, organophosphorus pesticides, and pyrethroids) and those commonly analyzed by liquid chromatography-mass spectrometry (carbamates, azole, and strobilurin fungicides, and phenylureas as well as organophosphorus pesticides). QuEChERS (quick, easy, cheap, effective, rugged, and safe) methods or QuEChERS methods with modifications to allow wetting of the dry sample matrix, buffering, changing extraction solvent from acetonitrile to ethyl acetate are examined. Subsequent cleanup using dispersive solid phase extraction or cartridge format solid phase extraction has also been completed to reduce matrix effects. Other solid matrices are frequently extracted with pressurized liquid extraction, microwave assisted extraction, or ultrasonic extraction combined with or followed by dispersive solid phase extraction or solid phase extraction. Particularly for chromatography-mass spectrometry, careful consideration of matrix effects needs to be made when considering the design of the sample preparation procedures. Selection of extraction solvent needs to consider both polarity of target analytes (and their solubility in selected solvents) as well as co-extracted matrix components.

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“…Several HPLC-based analytical methods have been reported for analyzing fenpyroximate residues in fruits 1 and vegetables. [2][3][4][5][6][7] It has been reported that fenpyroximate remaining in complicated matrices like fruits and vegetables is purified and extracted by combining a QuEChERS method and dispersive-solid-phase extraction (d-SPE). 8,9 There have also been reports on the analysis of aqueous samples like river water and tea using a combination of conventional solid-phase and liquid-phase extraction techniques.…”

Section: Introductionmentioning

confidence: 99%

Determination of Fenpyroximate from Four Types of Honey by Liquid Chromatography/Tandem Mass Spectrometry

Kim

Myung

2017

Bulletin Korean Chem Soc

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Fenpyroximate is an acaricide used to control phytophagous mites in beekeeping farms, and is used to regulate residual amounts in honey in European Union countries. An effective and accurate sample preparation method was established for a liquid chromatograph-mass spectrometer/mass spectrometer (LC-MS/ MS) analysis of four types of honey (acacia honey, wild honey, manuka, and chestnut honey). Experiments were carried out to determine the optimal values of parameters such as sample pH, type of solidphase cartridge, type and volume of extraction solvent, loading sample volume, type and volume of eluent for effective sample extraction, purification, and concentration. Chromatographic separation was performed using a C 18 (3.0 mm i.d. × 50 mm length, 2.7 μm particle size) column under isocratic conditions of water and acetonitrile (30:70). The optimized parameters for the extraction of fenpyroximate are as follows: sample pH, 7; type of sorbent solid phase, aminopropyl; volume of extraction solvent, 20 mL; volume of loading sample, 2 mL; eluent, dichloromethane/n-hexane (65/35%, v/v); eluent volume, 6 mL. The limits of detection and quantitation for spiked honey samples were 1.56 and 5.00 μg/kg, respectively. Linear correlation coefficient (r) obtained from a concentration range 5.00-50.0 μg/kg was 0.9914-0.9977, while the accuracy and precision were 87.99-119.06% and 0.68-14.71% (RSD), respectively. Residue monitoring of fenpyroximate was also performed on 30 commercially available honeys using established methods.

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Evaluation of QuEChERS sample preparation and liquid chromatography–triple-quadrupole mass spectrometry method for the determination of 109 pesticide residues in tomatoes

Cited by 107 publications

References 24 publications

Determination of Phenolic Compounds in Red Sweet Pepper (Capsicum annuum L.) using a Modified QuEChERS Method and UHPLC-MS/MS Analysis and Its Relation to Antioxidant Activity

Determination of Phenolic Compounds in Red Sweet Pepper (Capsicum annuum L.) using a Modified QuEChERS Method and UHPLC-MS/MS Analysis and Its Relation to Antioxidant Activity

Sample Preparation Methods for Pesticide Analysis in Food Commodities, Biological and Environment Matrices

Determination of Fenpyroximate from Four Types of Honey by Liquid Chromatography/Tandem Mass Spectrometry

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