Dissipation and residue of pymetrozine in rice field ecosystem

Zhang, Yanfeng; Zhang, Li; Xu, Peng; Li, Jianzhong; Wang, Huili

doi:10.1007/s10661-014-4256-x

Cited by 27 publications

(24 citation statements)

References 13 publications

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“…Rice ( Oryza sativa L.) is the most important grain and widely cultivated in China [1,2,3,4]. Thus, the quality and safety of rice are highly related to human health and national strategies.…”

Section: Introductionmentioning

confidence: 99%

Dissipation Dynamics and Residue of Four Herbicides in Paddy Fields Using HPLC-MS/MS and GC-MS

Qian

Zhang

et al. 2019

IJERPH

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The dissipation dynamics and residue of pyrazosulfuron-ethyl, bensulfuron-methyl, acetochlor, and butachlor in paddy fields at Good Agricultural Practices (GAP) condition were carefully investigated in this study. The four herbicides’ residues were determined based on a quick, easy, cheap, rugged, safe (QuEChERS) method coupled with HPLC-MS/MS and GC-MS. The limit of detection (LOD) for pyrazosulfuron-ethyl, bensulfuron-methyl, acetochlor, and butachlor in all matrices ranged from 0.04–1.0 ng. The limit of quantification (LOQ) of the four herbicides ranged from 0.01–0.1 mg/kg. Moreover, the average recoveries of the four herbicides ranged from 78.9–108% with relative standard deviations (RSDs) less than 15% at three different fortified levels for different matrices. The dissipation results indicated that the average half-lives (t1/2) of the four herbicides in soil were in the range of 3.5–17.8 days, and more than 95% of the four herbicides dissipated within 5 days in water. Furthermore, the final residues of the four herbicides were all below the LOQ at harvest time. Such results highlight the dissipation dynamics and residue of the four herbicides in a rice cropping system and contribute to risk assessment as well as scientific guidance on the proper and safe application of herbicides in paddy fields.

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Section: Introductionmentioning

confidence: 99%

Dissipation Dynamics and Residue of Four Herbicides in Paddy Fields Using HPLC-MS/MS and GC-MS

Qian

Zhang

et al. 2019

IJERPH

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“…In previous reports, pymetrozine residues could be extracted from samples using acetonitrile (Dias et al, ; Jang et al, ; Zhang et al, ). For example, Jang et al found that methyl cyanide (MeCN) is a better exaction solvent for pymetrozine in pepper than ethyl acetate (EtOAc).…”

Section: Resultsmentioning

confidence: 99%

“…In previous reports, pymetrozine residues could be extracted from samples using acetonitrile (Dias et al, 2013;Jang et al, 2014;Zhang et al, 2015). Garrido-Frenich, 2016; Walorczyk & Drożdżynski, 2012).…”

Section: Extraction and Purificationmentioning

confidence: 99%

“…As pymetrozine is widely used across the world, many papers on the analysis of pymetrozine in soils, terrestrial plants and meat products are available. Pymetrozine residues are usually extracted from different matrices using acetonitrile (Camino-Sanchez et al, 2010;Dias et al, 2013;Zhang, Zhang, Xu, Li, & Wang, 2015) and methanol (Hong, Cho-Rong, Jong-Sung, & Kyu-Seung, 2011). The extracts were cleaned up using solid-phase extraction (Zhao et al, 2014) or liquid-liquid partitioning with organic solvent such as dichloromethane (Zhang et al, 2015), ethyl acetate (Hong et al, 2011), or dispersive solid-phase extraction (Cabizza, Satta, Falconi, Onano, & Uccheddu, 2007).…”

mentioning

confidence: 99%

“…Pymetrozine residues are usually extracted from different matrices using acetonitrile (Camino-Sanchez et al, 2010;Dias et al, 2013;Zhang, Zhang, Xu, Li, & Wang, 2015) and methanol (Hong, Cho-Rong, Jong-Sung, & Kyu-Seung, 2011). The extracts were cleaned up using solid-phase extraction (Zhao et al, 2014) or liquid-liquid partitioning with organic solvent such as dichloromethane (Zhang et al, 2015), ethyl acetate (Hong et al, 2011), or dispersive solid-phase extraction (Cabizza, Satta, Falconi, Onano, & Uccheddu, 2007). The commonly used analytical instruments for pymetrozine are HPLC (De, Commissati, Gritti, Catellani, & Suman, 2015;Hong et al, 2011); LC-MS/MS (Camino-Sanchez et al, 2010;Dias et al, 2013;Fernandes et al, 2014) and GC (Jang et al, 2014).…”

mentioning

confidence: 99%

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Monitoring residue levels and dietary risk assessment of pymetrozine for Chinese consumption of cauliflower

Jia

Zeng

Zhao

et al. 2018

Biomedical Chromatography

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The present study investigates the occurrence of pymetrozine residues in cauliflower samples obtained from six cauliflower‐producing areas of China during fixed time periods in 2017 and estimates the dietary risk of pymetrozine in cauliflower. A liquid chromatography with tandem mass spectrometry method was developed and validated to detect pymetrozine in cauliflower. The samples were extracted using 20 mL of acetonitrile and purified with dispersive solid‐phase extraction using C18 as sorbent. The limit of quantification of pymetrozine was 0.008 mg/kg in cauliflower. The recoveries of the analyte were 82.04–95.18% with RSD <8.45%. The calibration curves for pymetrozine showed good linearities in the concentration range 0.004–2.0 mg/L with determination coefficients (R2) >0.999. Pymetrozine dissipated rapidly in cauliflower with a half‐life of <4 days. The terminal residues of pymetrozine were <0.008–0.0881 mg/kg in cauliflower at 7, 10 and 14 days after spraying from six sites. The routine washing process removed about half amount of the pymetrozine in cauliflower; the reduction ratios were 51.0–52.8%. The dietary risk assessment indicated that pymetrozine did not exhibit obvious dietary health risks in cauliflower when good agricultural practices were implemented.

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Residue behavior and safety evaluation of pymetrozine in tea

Sun

Wang

et al. 2021

J Sci Food Agric

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BACKGROUND Pymetrozine is a widely used pesticide. It is challenging to analyze and difficult to manage due to the large gap in its global maximum residue limits (MRLs) in tea. The development of a high‐efficiency detection method for the evaluation of the transfer of residual pymetrozine from tea plantations to tea cups is therefore of prime significance. RESULTS An analytical method for the determination of pymetrozine residues in tea was established based on Cleanert PCX solid‐phase extraction. The average recoveries were 72.2–93.7%, with relative standard deviations (RSDs) of less than 12%. The limits of quantification (LOQs) were 0.005 mg·kg−1 in fresh tea leaves and dry tea, and 0.00025 mg·L−1 in tea brew. Pymetrozine degraded rapidly in tea plants with a half‐life (t1/2) of 1.9 days in open tea plantations, and decreased by 9.4–23.7% in the green tea‐processing procedure, which was concentration dependent. The residual pymetrozine levels in green tea collected at 6 and 21 days were below the MRLs in China and EU at a dosage of 30 g a.i. ha−1, respectively. The leaching rates of pymetrozine from dry tea to tea brew were 58.7–96.3%. Hazard quotient (HQ) values of pymetrozine were significantly <100% when tea shoots were plucked in 6 days, which indicated a negligible risk to humans. CONCLUSION This work allows the determination of residual pymetrozine in tea and illustrates a low intake risk with the use of pymetrozine in tea plantations. It could serve as reference for further regulation consideration for maximum residue limits (MRLs). © 2020 Society of Chemical Industry

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Dissipation and residue of pymetrozine in rice field ecosystem

Cited by 27 publications

References 13 publications

Dissipation Dynamics and Residue of Four Herbicides in Paddy Fields Using HPLC-MS/MS and GC-MS

Dissipation Dynamics and Residue of Four Herbicides in Paddy Fields Using HPLC-MS/MS and GC-MS

Monitoring residue levels and dietary risk assessment of pymetrozine for Chinese consumption of cauliflower

Residue behavior and safety evaluation of pymetrozine in tea

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