Residue Determination of Epoxiconazole, Indoxacarb and Difenoconazole in Tea, Tea Infusion and Soil using Ultra High Performance Liquid Chromatography Coupled with Tandem Mass Spectrometry

文献类型： 外文期刊

第一作者： Zhang Xin-Zhong

作者： Zhang Xin-Zhong;Luo Feng-Jian;Chen Zong-Mao;Liu Guang-Ming;Lou Zheng-Yun;Wang Fang;Wu Lu-Chao;Zhang Xin-Zhong;Luo Feng-Jian;Chen Zong-Mao;Liu Guang-Ming;Lou Zheng-Yun;Zhang Xin-Zhong;Luo Feng-Jian;Chen Zong-Mao;Liu Guang-Ming;Lou Zheng-Yun

作者机构：

关键词： Ultra high performance liquid chromatography coupled with tandem mass spectrometry;Pesticide residue analysis;Tea;Tea infusion;Soil;Epoxoconazole;Indoxacarb;Difenoconazole

期刊名称：CHINESE JOURNAL OF ANALYTICAL CHEMISTRY （ 影响因子：1.134； 五年影响因子：0.909 ）

ISSN： 0253-3820

年卷期： 2013 年 41 卷 2 期

页码：

收录情况： SCI

摘要： To meet the need of simultaneous residue determination for epoxiconazole, indoxacarb and difenoconazole in tea, tea infusion and soil, a sensitive and convenient method was developed by validated using ultra-high performance liquid chromatography coupled with tandem mass spectrometry (UPLC-MS/MS). Target compounds were extracted by acetonitrile followed by Florisil and graphit carbon black (GCB) mix-column cleanup for tea and soil, and target compounds in tea infusion was extracted and cleanuped by BondElut C-18-SPE column. The fragmentation pathway and matrix effect were investigated. Over the concentration in the range of 0.005-4.0 mg/L for epoxiconazole, indoxacarb and difenoconazole, the correlation coefficients (r) of the calibration curves were above 0.9997, and the limits of detection (LODs) were lower than 0.002 mg/L. The average recoveries of epoxiconazole, indoxacarb and difenoconazole in different matrix (green tea, black tea, puerh tea, black tea infusion, fresh tea leave and soil) at three spiked concentration levels ranged from 66.3% to 111.5% with relative standard deviations (RSDs) between 0.9% and 17.6% (n=5). The limits of quantitation (LOQs) of three pesticides were lower than 0.005 mg/kg in made tea, 0.002 mg/kg in fresh tea leave and soil, 0.10 mu g/L in black tea infusion. The proposed method was successfully applied to the routine export green tea and black tea sample (n=40) in China, there were 0.014 mg/kg residue of indoxacarb in one sample, 0.012 mg/kg-0.040 mg/kg residue of difenoconazole in four sample, and no epoxiconazole detected, all of tea sample were meet the MRL requirements of EU and Japan. Also, this method was successfully used to the study on the degradation loss rate of indoxacarb during the processing of fresh tea leaves to made tea, and on the leaching rate of indoxacarb during the brewing process from made tea to tea infusion, the average results were the processing degradation loss rate of indoxacarb at 24.8%, and the total leaching rate of indoxacarb at 5.2% (n=3).

分类号：

  • 相关文献

[1]Simultaneous and enantioselective determination of cis-epoxiconazole and indoxacarb residues in various teas, tea infusion and soil samples by chiral high performance liquid chromatography coupled with tandem quadrupole-time-of-flight mass spectrometry. Zhang, Xinzhong,Luo, Fengjian,Lou, Zhengyun,Chen, Zongmao,Zhang, Xinzhong,Luo, Fengjian,Lou, Zhengyun,Chen, Zongmao,Zhang, Xinzhong,Luo, Fengjian,Lou, Zhengyun,Chen, Zongmao,Zhang, Xinzhong,Luo, Fengjian,Lou, Zhengyun,Chen, Zongmao,Lu, Meiling.

[2]Enantioselective degradation of indoxacarb in cabbage and soil under field conditions. Sun, Dali,Wu, Yijun,Liang, Hongwu,Li, Li,Qiu, Jing,Sun, Dali,Liu, Chenglan.

[3]Concentrations and dissipation of difenoconazole and fluxapyroxad residues in apples and soil, determined by ultrahigh-performance liquid chromatography electrospray ionization tandem mass spectrometry. Jia, Chunhong,Zhao, Ercheng,Chen, Li,Yu, Pingzhong,Jing, Junjie,He, Min,Zheng, Yongquan.

[4]Degradation of four fungicides in tropical soils from Hainan, China. Han, Bing Jun,Peng, Li Xu,Chen, Li Xia.

[5]Solid-phase purification and extraction for the determination of trace neonicotinoid pesticides in tea infusion. Zhang, Minglu,Chen, Hongping,Zhu, Li,Wang, Chuanpi,Ma, Guicen,Liu, Xin,Zhang, Minglu,Chen, Hongping,Zhu, Li,Wang, Chuanpi,Ma, Guicen,Liu, Xin.

[6]Immobilization and Characterization of Tannase from a Metagenomic Library and Its Use for Removal of Tannins from Green Tea Infusion. Yao, Jian,Chen, Qinglong,Zhong, Guoxiang,Cao, Wen,Yu, An,Yao, Jian,Liu, Yuhuan.

[7]Enantioselective determination of the insecticide indoxacarb in cucumber and tomato by chiral liquid chromatography-tandem mass spectrometry. Dong, Fengshou,Li, Yuanbo,Chen, Xiu,Zheng, Yongquan,Wang, Huanqing,Xiang, Wensheng,Cheng, Youpu.

[8]Enantioselective Degradation and Enantiomerization of Indoxacarb in Soil. Sun, Dali,Liu, Chenglan,Sun, Dali,Pang, Junxiao,Jiao, Bining,Qiu, Jing,Li, Li.

[9]Effects of the bioconcentration and parental transfer of environmentally relevant concentrations of difenoconazole on endocrine disruption in zebrafish (Danio rerio). Teng, Miaomiao,Zhu, Wentao,Wang, Yao,Wang, Dezhen,Wang, Chengju,Qi, Suzhen,Dong, Kai. 2018

[10]Determination of difenoconazole residue in tomato during home canning by UPLC-MS/MS. Dong, Fengshou,Xu, Jun,Liu, Xingang,Li, Jing,Li, Yuanbo,Chen, Xiu,Zheng, Yongquan,Zhang, Changpeng,Shan, Weili. 2012

[11]Simultaneous enantioselective determination of triazole fungicide difenoconazole and its main chiral metabolite in vegetables and soil by normal-phase high-performance liquid chromatography. Dong, Fengshou,Cheng, Youpu,Liu, Xingang,Xu, Jun,Li, Yuanbo,Chen, Xiu,Kong, Zhiqiang,Zheng, Yongquan,Cheng, Youpu.

[12]Comparison of Greenhouse and Field Degradation Behaviour of Isoprocarb, Hexaflumuron and Difenoconazole in Perilla frutescens. Sun, Caixia,Zhang, Hu,Tang, Tao,Qian, Mingrong,Yuan, Yuwei,Zhang, Zhiheng,Sun, Caixia,Zhang, Hu,Tang, Tao,Qian, Mingrong,Yuan, Yuwei,Zhang, Zhiheng,Sun, Caixia,Zhang, Hu,Tang, Tao,Qian, Mingrong,Yuan, Yuwei,Zhang, Zhiheng.

[13]Metabolomics and transcriptomics reveal the toxicity of difenoconazole to the early life stages of zebrafish (Danio rerio). Teng, Miaomiao,Zhu, Wentao,Wang, Dezhen,Wang, Yao,Yan, Jin,Zheng, Mingqi,Wang, Chengju,Qi, Suzhen,Dong, Kai. 2018

[14]Sex-specific effects of difenoconazole on the growth hormone endocrine axis in adult zebrafish (Danio rerio). Teng, Miaomiao,Zhu, Wentao,Wang, Yao,Wang, Dezhen,Yang, Yang,Li, Hui,Li, Chenglong,Wang, Chengju,Qi, Suzhen,Dong, Kai. 2017

[15]Dissipation and Residues of Difenoconazole and Azoxystrobin in Bananas and Soil in Two Agro-Climatic Zones of China. Huan, Zhibo,Xu, Zhi,Lv, Daizhu,Xie, Defang,Luo, Jinhui.

[16]Degradation of three fungicides following application on strawberry and a risk assessment of their toxicity under greenhouse conditions. Sun, Caixia,Cang, Tao,Wang, Zhiwei,Wang, Xinquan,Yu, Ruixian,Wang, Qiang,Zhao, Xueping.

[17]The developmental effect of difenoconazole on zebrafish embryos: A mechanism research. Mu, Xiyan,Chai, Tingting,Zhu, Lizhen,Li, Xuefeng,Wang, Chengju,Mu, Xiyan,Huang, Ying,Shen, Gongming,Li, Yingren,Wang, Kai.

[18]Influence of a heavy rainfall event on the leaching of [C-14]isoproturon and its degradation products in outdoor lysimeters. Doerfler, Ulrike,Cao, Guoyin,Grundmann, Sabine,Schroll, Reiner.

[19]Earthworms enhanced winter oilseed rape (Brassica napus L.) growth and nitrogen uptake. Zhang, Shujie,Chao, Ying,Zhang, Chunlei,Cheng, Jing,Li, Jun,Ma, Ni.

[20]N, P Contribution and soil adaptability of four arbuscular mycorrhizal fungi. Wenke, Liu.

作者其他论文 更多>>

微信小程序