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Dissipation Dynamics and Residue of Four Herbicides in Paddy Fields Using HPLC-MS/MS and GC-MS.
Int J Environ Res Public Health. 2019 01 15; 16(2)IJ

Abstract

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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Authors+Show Affiliations

Yu Q
Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China. qianyu_swu@163.com. Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China. qianyu_swu@163.com.
Zhang P
Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China. pingz@swu.edu.cn. Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China. pingz@swu.edu.cn.
He Y
Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China. pingz028@163.com. Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China. pingz028@163.com.
Xu Z
Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China. xzf2018@swu.edu.cn. Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China. xzf2018@swu.edu.cn.
He X
Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China. zpcauz@163.com. Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China. zpcauz@163.com.
Hu Y
Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China. helinok@vip.tom.com. Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China. helinok@vip.tom.com.
Zhang H
Institute for the Control of Agrochemicals, Ministry of Agriculture, Beijing 100125, China. zhanghongjun@agri.gov.cn.
He L
Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China. helinok@vip.tom.com. Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China. helinok@vip.tom.com.

MeSH

AcetanilidesChromatography, High Pressure LiquidEnvironmental MonitoringGas Chromatography-Mass SpectrometryHalf-LifeHerbicidesOryzaPesticide ResiduesPyrazolesPyrimidinesSoil PollutantsSulfonylurea CompoundsTandem Mass SpectrometryToluidines

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

30650669

Citation

Yu, Qian, et al. "Dissipation Dynamics and Residue of Four Herbicides in Paddy Fields Using HPLC-MS/MS and GC-MS." International Journal of Environmental Research and Public Health, vol. 16, no. 2, 2019.
Yu Q, Zhang P, He Y, et al. Dissipation Dynamics and Residue of Four Herbicides in Paddy Fields Using HPLC-MS/MS and GC-MS. Int J Environ Res Public Health. 2019;16(2).
Yu, Q., Zhang, P., He, Y., Xu, Z., He, X., Hu, Y., Zhang, H., & He, L. (2019). Dissipation Dynamics and Residue of Four Herbicides in Paddy Fields Using HPLC-MS/MS and GC-MS. International Journal of Environmental Research and Public Health, 16(2). https://doi.org/10.3390/ijerph16020236
Yu Q, et al. Dissipation Dynamics and Residue of Four Herbicides in Paddy Fields Using HPLC-MS/MS and GC-MS. Int J Environ Res Public Health. 2019 01 15;16(2) PubMed PMID: 30650669.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Dissipation Dynamics and Residue of Four Herbicides in Paddy Fields Using HPLC-MS/MS and GC-MS. AU - Yu,Qian, AU - Zhang,Ping, AU - He,Yuhan, AU - Xu,Zhifeng, AU - He,Xiulong, AU - Hu,Yuan, AU - Zhang,Hongjun, AU - He,Lin, Y1 - 2019/01/15/ PY - 2018/11/30/received PY - 2019/01/10/revised PY - 2019/01/11/accepted PY - 2019/1/18/entrez PY - 2019/1/18/pubmed PY - 2019/5/24/medline KW - GC-MS KW - HPLC-MS/MS KW - dissipation KW - herbicide KW - residue KW - rice JF - International journal of environmental research and public health JO - Int J Environ Res Public Health VL - 16 IS - 2 N2 - 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. SN - 1660-4601 UR - https://www.unboundmedicine.com/medline/citation/30650669/Dissipation_Dynamics_and_Residue_of_Four_Herbicides_in_Paddy_Fields_Using_HPLC_MS/MS_and_GC_MS_ DB - PRIME DP - Unbound Medicine ER -