A new multiresidue method for the determination of multiclass pesticides, degradation products and PCBs in water using LC–MS/MS and GC–MS<sup>(<i>n</i>)</sup>systems

Charalampous, Angeliki; Miliadis, G. E.; Koupparis, Michael A.

doi:10.1080/03067319.2015.1100723

Cited by 15 publications

(4 citation statements)

References 21 publications

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“…To gain the proper matrix effect, best peak shape, and sensitivity during the LC–MS/MS analysis, the injection volume is one of the most important parameters [ 33 , 46 , 47 ]. In the previous studies, the injection volumes were optimized for the above-mentioned reasons.…”

Section: Resultsmentioning

confidence: 99%

“…An injection volume of 5 μL was selected in the case of spinach analysis using Shimadzu LC–MS/MS because a high injection volume such as 10 μL could lead to the suppression of the linearity of the calibration curve [ 33 ]. The sensitivity is not linearly proportional to injection volume, and too large an injection volume may lead to distorted peaks, carry-over, and broad peak widths [ 46 , 47 ]. In the case of cabbage and rice analyses using Thermo Scientific LC–MS/MS, an injection volume of 6 μL was selected to achieve optimum peak shape [ 47 ].…”

Section: Resultsmentioning

confidence: 99%

“…The sensitivity is not linearly proportional to injection volume, and too large an injection volume may lead to distorted peaks, carry-over, and broad peak widths [ 46 , 47 ]. In the case of cabbage and rice analyses using Thermo Scientific LC–MS/MS, an injection volume of 6 μL was selected to achieve optimum peak shape [ 47 ]. An injection volume of 20 μL was selected to provide the highest sensitivity in the case of milk and milk product analyses using Waters LC–MS/MS [ 48 ].…”

Section: Resultsmentioning

confidence: 99%

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Validation of a Multi-Residue Analysis Method for 287 Pesticides in Citrus Fruits Mandarin Orange and Grapefruit Using Liquid Chromatography–Tandem Mass Spectrometry

Yuan¹,

Kim²,

Lee³

et al. 2022

Foods

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Since the introduction of the positive list system (PLS) for agricultural products in the Republic of Korea, the demand for a quick, easy multi-residue analysis method increased continuously. Herein, the quick, easy, cheap, effective, rugged, and safe (QuEChERS) technique combined with liquid chromatography–tandem mass spectrometry was employed to optimize a method for the multi-residue analysis of 287 pesticide residues in mandarin orange and grapefruit. Method validation was conducted in terms of selectivity, limit of quantitation (LOQ), linearity, accuracy, precision, and matrix effect. All the compounds at low spiking levels (1, 2.5, 5, or 10 mg/kg) could be quantified at LOQs lower than 0.01 mg/kg (PLS level). The linearity of the matrix-matched calibration curve for each compound is in the range 0.5–50 μg/L, and its coefficient of determination (R2) is >0.990. Satisfactory recovery values of 70–120% with a relative standard deviation of ≤20% are obtained for all compounds in the mandarin orange and grapefruit samples. A negligible matrix effect (−20–20%) is observed for more than 94.8% and 85.4% of the pesticides in mandarin orange and grapefruit, respectively. Therefore, this analytical method can contribute to pesticide residue analyses of citrus fruits for routine laboratory testing.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Validation of a Multi-Residue Analysis Method for 287 Pesticides in Citrus Fruits Mandarin Orange and Grapefruit Using Liquid Chromatography–Tandem Mass Spectrometry

Yuan¹,

Kim²,

Lee³

et al. 2022

Foods

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“…Under the optimized method, more pesticides had acceptable recoveries with Oasis HLB as expected from this mixed-mode sorbent [53]; however, recoveries for OCs and OPs varied ( Table 2), so care should be taken if more nonpolar pesticides are of greatest interest. Under neutral pH conditions, recoveries for OCs and pyrethroids were also more variable when Oasis HLB was used [76]. A larger number of OPs and OCs gave acceptable recoveries with a polymeric sorbent with acidified water samples (Bond Elut Nexus) [77].…”

Section: Ideas and Applications Toward Sample Preparation For Food Anmentioning

confidence: 95%

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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Pesticides (New Generation) and Related Compounds, Analysis of

Ccanccapa

Picó

2017

Encyclopedia of Analytical Chemistry

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This article presents an overview of analytical methods for the analysis of pesticide (new‐generation) and related compounds in the last 5 years, which updates the previous one. Pesticides included in this group display almost no change, but the evolution of analytical techniques is important. In general, new pesticides are now included in multiresidue methods with generic sample treatment methodologies being able to extract as many pesticide classes as possible. However, this article focuses not only on these common multiresidue methods but also on specific methodologies as single‐residue methods for the analysis of new‐generation pesticides. The most widely used detection technique for the determination of pesticides is mass spectrometry (MS) combined with gas chromatography (GC) and/or liquid chromatography (LC). However, the advances in immunoassays, biosensors and other techniques are also included. Finally, the future perspectives and the trends for pesticide residue analysis in food and environmental matrices are outlined.

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A new multiresidue method for the determination of multiclass pesticides, degradation products and PCBs in water using LC–MS/MS and GC–MS⁽ⁿ⁾systems

Cited by 15 publications

References 21 publications

Validation of a Multi-Residue Analysis Method for 287 Pesticides in Citrus Fruits Mandarin Orange and Grapefruit Using Liquid Chromatography–Tandem Mass Spectrometry

Validation of a Multi-Residue Analysis Method for 287 Pesticides in Citrus Fruits Mandarin Orange and Grapefruit Using Liquid Chromatography–Tandem Mass Spectrometry

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

Pesticides (New Generation) and Related Compounds, Analysis of

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A new multiresidue method for the determination of multiclass pesticides, degradation products and PCBs in water using LC–MS/MS and GC–MS(n)systems

Cited by 15 publications

References 21 publications

Validation of a Multi-Residue Analysis Method for 287 Pesticides in Citrus Fruits Mandarin Orange and Grapefruit Using Liquid Chromatography–Tandem Mass Spectrometry

Validation of a Multi-Residue Analysis Method for 287 Pesticides in Citrus Fruits Mandarin Orange and Grapefruit Using Liquid Chromatography–Tandem Mass Spectrometry

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

Pesticides (New Generation) and Related Compounds, Analysis of

Contact Info

Product

Resources

About

A new multiresidue method for the determination of multiclass pesticides, degradation products and PCBs in water using LC–MS/MS and GC–MS⁽ⁿ⁾systems