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Determination and study on dissipation and residue determination of cyhalofop-butyl and its metabolite using HPLC-MS/MS in a rice ecosystem.
Environ Monit Assess. 2014 Oct; 186(10):6959-67.EM

Abstract

Cyhalofop-butyl is an aryloxyphenoxypropionate postemergence herbicide with good control of barnyard grass in rice paddies. In this study, method for the determination of cyhalofop-butyl and its metabolite was developed with high-performance liquid chromatography tandem mass spectrometry. Dissipation and residue levels of cyhalofop-butyl and its metabolite in rice ecosystems were also investigated. Recoveries and relative standard deviations of cyhalofop-butyl and cyhalofop acid in six matrices at three spiking levels ranged from 76.1 to 107.5% and 1.1 to 8.2%, respectively. The limit of quantitation (LOQ) of cyhalofop-butyl and cyhalofop acid was 0.01 mg/kg in paddy water, paddy soil, rice plant, rice straw, rice hulls, and husked rice. For field experiments, the results showed that cyhalofop-butyl degraded to cyhalofop acid quickly, and the half-lives of cyhalofop acid in paddy water, paddy soil, and rice plant were 1.01-1.53, 0.88-0.97, and 2.09-2.42 days, respectively. Ultimate residues of cyhalofop-butyl and its metabolite in the rice samples were not detectable or below 0.01 mg/kg at harvest.

Links

Publisher Full Text (DOI)

Authors+Show Affiliations

Wu J
College of Science, China Agricultural University, Beijing, 100193, People's Republic of China.
Wang K
No affiliation info available
Zhang Y
No affiliation info available
Zhang H
No affiliation info available

MeSH

ButanesChromatography, High Pressure LiquidChromatography, LiquidEcosystemEnvironmental MonitoringHalf-LifeHerbicidesMass SpectrometryNitrilesOryzaPesticide ResiduesPropionatesSoilTandem Mass Spectrometry

Pub Type(s)

Journal Article

Language

eng

PubMed ID

25007772

Citation

Wu, Junxue, et al. "Determination and Study On Dissipation and Residue Determination of Cyhalofop-butyl and Its Metabolite Using HPLC-MS/MS in a Rice Ecosystem." Environmental Monitoring and Assessment, vol. 186, no. 10, 2014, pp. 6959-67.
Wu J, Wang K, Zhang Y, et al. Determination and study on dissipation and residue determination of cyhalofop-butyl and its metabolite using HPLC-MS/MS in a rice ecosystem. Environ Monit Assess. 2014;186(10):6959-67.
Wu, J., Wang, K., Zhang, Y., & Zhang, H. (2014). Determination and study on dissipation and residue determination of cyhalofop-butyl and its metabolite using HPLC-MS/MS in a rice ecosystem. Environmental Monitoring and Assessment, 186(10), 6959-67. https://doi.org/10.1007/s10661-014-3902-7
Wu J, et al. Determination and Study On Dissipation and Residue Determination of Cyhalofop-butyl and Its Metabolite Using HPLC-MS/MS in a Rice Ecosystem. Environ Monit Assess. 2014;186(10):6959-67. PubMed PMID: 25007772.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Determination and study on dissipation and residue determination of cyhalofop-butyl and its metabolite using HPLC-MS/MS in a rice ecosystem. AU - Wu,Junxue, AU - Wang,Kai, AU - Zhang,Yun, AU - Zhang,Hongyan, Y1 - 2014/07/11/ PY - 2013/10/22/received PY - 2014/06/30/accepted PY - 2014/7/11/entrez PY - 2014/7/11/pubmed PY - 2014/12/15/medline SP - 6959 EP - 67 JF - Environmental monitoring and assessment JO - Environ Monit Assess VL - 186 IS - 10 N2 - Cyhalofop-butyl is an aryloxyphenoxypropionate postemergence herbicide with good control of barnyard grass in rice paddies. In this study, method for the determination of cyhalofop-butyl and its metabolite was developed with high-performance liquid chromatography tandem mass spectrometry. Dissipation and residue levels of cyhalofop-butyl and its metabolite in rice ecosystems were also investigated. Recoveries and relative standard deviations of cyhalofop-butyl and cyhalofop acid in six matrices at three spiking levels ranged from 76.1 to 107.5% and 1.1 to 8.2%, respectively. The limit of quantitation (LOQ) of cyhalofop-butyl and cyhalofop acid was 0.01 mg/kg in paddy water, paddy soil, rice plant, rice straw, rice hulls, and husked rice. For field experiments, the results showed that cyhalofop-butyl degraded to cyhalofop acid quickly, and the half-lives of cyhalofop acid in paddy water, paddy soil, and rice plant were 1.01-1.53, 0.88-0.97, and 2.09-2.42 days, respectively. Ultimate residues of cyhalofop-butyl and its metabolite in the rice samples were not detectable or below 0.01 mg/kg at harvest. SN - 1573-2959 UR - https://www.unboundmedicine.com/medline/citation/25007772/Determination_and_study_on_dissipation_and_residue_determination_of_cyhalofop_butyl_and_its_metabolite_using_HPLC_MS/MS_in_a_rice_ecosystem_ DB - PRIME DP - Unbound Medicine ER -