Dispersive solid-phase extraction combined with dispersive liquid-liquid microextraction for simultaneous determination of seven succinate dehydrogenase inhibitor fungicides in watermelon by ultra high performance liquid chromatography with tandem mass spectrometry
文献类型： 外文期刊
作者： Wu, Junxue 1 ; Zhi, Shenwei 1 ; Jia, Chunhong 1 ; Li, Xinghai 2 ; Zhu, Xiaodan 1 ; Zhao, Ercheng 1 ;
作者机构： 1.Beijing Acad Agr & Forestry Sci, Inst Plant & Environm Protect, Beijing 100097, Peoples R China
2.Shenyang Agr Univ, Coll Plant Protect, Shenyang, Liaoning, Peoples R China
关键词： dispersive liquid-liquid mixroextraction; dispersive solid phase extraction; succinate dehydrogenase inhibitor fungicides
期刊名称：JOURNAL OF SEPARATION SCIENCE （ 影响因子：3.645； 五年影响因子：2.943 ）
ISSN： 1615-9306
年卷期： 2019 年 42 卷 24 期
页码：
收录情况： SCI
摘要： In this study, a simple and accurate sample preparation method based on dispersive solid-phase extraction and dispersive liquid-liquid microextraction has been developed for the determination of seven novel succinate dehydrogenase inhibitor fungicides (isopyrazam, fluopyram, pydiflumetofen, boscalid, penthiopyrad, fluxapyroxad, and thifluzamide) in watermelon. The watermelon samples were extracted with acetonitrile, cleaned up by dispersive solid-phase extraction procedure using primary secondary amine, extracted and concentrated by the dispersive liquid-liquid microextraction procedure with 1,1,2,2-tetrachloroethane, and then analyzed by ultra high performance liquid chromatography with tandem mass spectrometry. The main experimental factors affecting the performance of dispersive solid-phase extraction and dispersive liquid-liquid microextraction procedure on extraction efficiency were investigated. The proposed method had a good linearity in the range of 0.1-100 mu g/kg with correlation coefficients (r) of 0.9979-0.9999. The limit of quantification of seven fungicides was 0.1 mu g/kg in the method. The fortified recoveries of seven succinate dehydrogenase inhibitor fungicides at three levels ranged from 72.0 to 111.6% with relative standard deviations of 3.4-14.1% (n = 5). The proposed method was successfully used for the rapid determination of seven succinate dehydrogenase inhibitor fungicides in watermelon.
- 相关文献
作者其他论文 更多>>
-
Determination of chiral prothioconazole and its chiral metabolite in water, juice, tea, and vinegar using emulsive liquid-liquid microextraction combined with ultra-high performance liquid chromatography
作者：Guo, Xingle;Zheng, Xiaojiao;Guo, Xu;Jing, Xu;Guo, Xingle;Zheng, Xiaojiao;Wu, Junxue
关键词：Emulsive liquid-liquid microextraction; Prothioconazole; Prothioconazole-desthio; Enantiomer; Demulsification
-
Droplet Deposition and Efficacy of Real-Time Variable-Rate Application of Herbicides at Reduced Dose in Winter Wheat Fields
作者：Zhang, Jinwei;Yu, Pingzhong;Zhao, Ercheng;Zhang, Jinwei;Zhao, Xueguan;Song, Jian;Wang, Xiu;Xu, Xian;Lv, Yuan
关键词：real-time variable-rate spraying; spraying volume; nozzle; droplet deposition; herbicide efficacy
-
Host plants benefit from non-predatory effects of zoophytophagous predators against herbivores
作者：Zhu, Zhengyang;Jaworski, Coline C.;Liu, Junxiu;Zhao, Ercheng;Wang, Su;Di, Ning;Zhu, Zhengyang;Liu, Junxiu;Wang, Su;Di, Ning;Zhu, Zhengyang;Xu, Zhigang;Jaworski, Coline C.;Desneux, Nicolas;Gao, Yulin
关键词：Defence responses; Fitness; Feeding; Oviposition behaviour; Biological control
-
Herbigation combined with plastic film mulching to control weeds in maize (Zea mays L.) fields in the Hexi Corridor region, Northwest China
作者：Zhang, Jinwei;Liang, Qian;Jing, Junjie;Tao, Yan;Yu, Pingzhong;Jia, Chunhong;Zhao, Ercheng;Zhao, Jianhua;Sun, Jianhao;He, Yakai;Xie, Yaqiong
关键词：Maize production; Weed control; Herbicide application; Drip irrigation; Film mulching
-
Subzero-temperature homogeneous liquid-liquid extraction for the stereoselective determination of chiral triadimefon and its metabolite in water, fruit juice, vinegar, and fermented liquor by HPLC
作者：Guo, Xingle;Jiang, Haijuan;Guo, Yuqi;Jia, Liyan;Jing, Xu;Guo, Xingle;Wu, Junxue;Jiang, Haijuan;Jia, Liyan;Jing, Xu
关键词：
-
Determination of parathion-methyl in water, juice, tea, and vinegar using cyclodextrin-based dispersive liquid-liquid microextraction combined with smartphone digital image colorimetry
作者：Guo, Xingle;Huang, Xin;Jiang, Haijuan;Jia, Liyan;Jing, Xu;Guo, Xingle;Wu, Junxue;Zhang, Guisen
关键词：Parathion-methyl; dispersive liquid-liquid microextraction; smartphone; digital image colorimetry; cyclodextrin; deep eutectic solvent
-
Spatial-temporal distribution and potential risk of pesticides in ambient air in the North China Plain
作者：Zhao, Mingyu;Cao, Yuxuan;Li, Jingjing;Chen, Xue;Shi, Shuping;Liu, Xuejun;Wang, Kai;Wu, Junxue;Zou, Ziyu;Zhao, Ercheng;Figueiredo, Daniel M.;Zhang, Yun;Zhang, Hongyan;Han, Jiajun;Li, Jindong;Wei, Zhiyun;Li, Jindong;Geissen, Violette;Ritsema, Coen J.
关键词：Atmospheric pesticides; Spatial-temporal distribution; Crop systems; Health risk assessment; North China Plain
