Determination of pyrethrin and pyrethroid residues in animal fat using liquid chromatography coupled to tandem mass spectrometry

Moloney, Mary; Tuck, Sarah; Ramkumar, Abilasha; Furey, Ambrose; Danaher, Martin

doi:10.1016/j.jchromb.2017.12.022

Cited by 19 publications

(14 citation statements)

References 36 publications

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“…As displayed in Figure 1a, avermectins, acephate, and methamidophos can be well recovered on HLB, while florisil performed excellently for pyrethroids. These results are consistent with previous papers [36,37], but no better results were obtained for other pesticides. Meanwhile, as shown in Figure 1b, the combined use of HLB with florisil or C18 was also examined.…”

Section: Selection Of Extraction Cartridgessupporting

confidence: 93%

Multi-Residue Screening of Pesticides in Aquaculture Waters through Ultra-High-Performance Liquid Chromatography-Q/Orbitrap Mass Spectrometry

Wang

Fodjo

Kong

et al. 2020

Water

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Pesticide residues in foodstuffs can lead to several undesirable effects. A simple and high-throughput targeted screening method analyzing multi-residue pesticide in aquaculture water based on ultra-high-performance liquid chromatography-Q/Orbitrap mass spectrometry (UHPLC-Q/Orbi MS) was developed and validated. In this technique, the peaks of the compound using precursor ions were recorded by the full scan, which was used for rough quantitative analysis with single point matrix matched calibration. The qualitative identification was performed following the stringent confirmation criteria with fragment ions, retention time, and an isotopic pattern. Additionally, solid-phase extraction with an HLB (Hydrophilic/Lipophilic Balanced) column was selected to enrich and separate target pesticides from water. The screening detection limit of 33 compounds are less than 2 ng·L−1, while 26 compounds range from 2 ng·L−1 to 10 ng·L−1, 19 compounds are at the range of 10–200 ng·L−1, and the other two compounds are 200 ng·L−1 and 1000 ng·L−1. Most of the recovery results were found to be between 60~130%. Finally, the method was successfully applied to the analysis of pesticide residues in 30 water samples from aquaculture environment in Shanghai, indicating its applicability in pesticide screening for environmental monitoring.

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Section: Selection Of Extraction Cartridgessupporting

confidence: 93%

Multi-Residue Screening of Pesticides in Aquaculture Waters through Ultra-High-Performance Liquid Chromatography-Q/Orbitrap Mass Spectrometry

Wang

Fodjo

Kong

et al. 2020

Water

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“…Higher abundant product ions of m / z 177 for fragmentation of [M + NH 4 ] + ( m / z 436) were excavated by manual tuning mode. [M + NH 4 ] + ( m / z 436 > 177) was selected as quantitative and qualitative determination ions of tefluthrin enantiomers, in agreement with the literature. − Different buffer concentrations (1, 2, 5, and 10 mM) were investigated, and the MS signal response was the highest at 5 mM.…”

Section: Resultsmentioning

confidence: 73%

“…Furthermore, the MRLs were set to 0.5 mg/kg in kale and lettuce by Japan. Tefluthrin residue analytical methods focused on animal fat, children’s food, and beeswax have been established. − Tefluthrin contains two chiral carbon atoms, a double bond, and cyclopropane; theoretically, there are eight stereoisomers, but its main ingredients in production are Z and cis isomers that only have two enantiomers. Until now, racemic tefluthrin was widely produced and sold on the market.…”

Section: Introductionmentioning

confidence: 99%

Novel Liquid Chromatography–Tandem Mass Spectrometry Method for Enantioseparation of Tefluthrin via a Box–Behnken Design and Its Stereoselective Degradation in Soil

Wen

Wang

Gao

et al. 2019

J. Agric. Food Chem.

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A simple and eco-friendly dispersive solid-phase extraction method coupled with ultra performance liquid chromatography–tandem mass spectrometry (UPLC–MS/MS) was developed for the determination of the chiral pesticide tefluthrin in food and environmental samples. The response surface methodology was applied to optimize separation conditions. The elution order of tefluthrin enantiomers was Z-cis-(1S,3S)-(−)-tefluthrin and Z-cis-(1R,3R)-(+)-tefluthrin on a Lux Cellulose-1 chiral column was identified via a polarimeter and vibrating circular dichroism. The average recoveries in five matrices ranged from 76.9 to 107.6%, with intraday relative standard deviations (RSDs) less than 15.6% and interday RSDs less than 12.5% for two enantiomers. The enantioselective degradation was investigated via laboratory incubation experiments. Slightly enantioselective degradation was observed under aerobic conditions; (1S,3S)-tefluthrin degraded preferentially with the enantiomer fraction value of 0.57 at 120 days of incubation. No remarkable enantioselective degradation was observed under anaerobic and sterile conditions. It was the first time that pyrethroid pesticides were determined at the enantiomer levels via UPLC–MS/MS. This novel method was successfully applied for the enantioselective analysis of tefluthrin enantiomers in authentic samples, indicating its efficacy in investigating the environmental stereochemistry of tefluthrin in the food web and environment. It is of crucial importance to improve risk assessment and regulation of chiral pesticides in an agricultural system.

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“… 15 At present, the sample pretreatment methods for pyrethroids in complex matrices include liquid–liquid extraction, solid-phase extraction, magnetic solid-phase extraction, and so on. 16 However, owing to the presence of trace-level pyrethroids and various interference chemicals and ions, the rapid/sensitive assay of pyrethroids is still a challenging issue in environmental and food matrices.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen bonds-triggered differential extraction efficiencies for bifenthrin by three polymeric ionic liquids with varying anions based on FT-IR spectroscopy

et al. 2022

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Determination of pyrethrin and pyrethroid residues in animal fat using liquid chromatography coupled to tandem mass spectrometry

Cited by 19 publications

References 36 publications

Multi-Residue Screening of Pesticides in Aquaculture Waters through Ultra-High-Performance Liquid Chromatography-Q/Orbitrap Mass Spectrometry

Multi-Residue Screening of Pesticides in Aquaculture Waters through Ultra-High-Performance Liquid Chromatography-Q/Orbitrap Mass Spectrometry

Novel Liquid Chromatography–Tandem Mass Spectrometry Method for Enantioseparation of Tefluthrin via a Box–Behnken Design and Its Stereoselective Degradation in Soil

Hydrogen bonds-triggered differential extraction efficiencies for bifenthrin by three polymeric ionic liquids with varying anions based on FT-IR spectroscopy

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