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Wang F, Li X, Jiang S, Han J, Wu J, Yan M, Yao Z. Enantioselective Behaviors of Chiral Pesticides and Enantiomeric Signatures in Foods and the Environment. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:12372-12389. [PMID: 37565661 DOI: 10.1021/acs.jafc.3c02564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/12/2023]
Abstract
Unreasonable application of pesticides may result in residues in the environment and foods. Chiral pesticides consist of two or more enantiomers, which may exhibit different behaviors. This Review intends to provide progress on the enantioselective residues of chiral pesticides in foods. Among the main chiral analytical methods, high performance liquid chromatography (HPLC) is the most frequently utilized. Most chiral pesticides are utilized as racemates; however, due to enantioselective dissipation, bioaccumulation, biodegradation, and chiral conversion, enantiospecific residues have been found in the environment and foods. Some chiral pesticides exhibit strong enantioselectivity, highlighting the importance of evaluation on an enantiomeric level. However, the occurrence characteristics of chiral pesticides in foods and specific enzymes or transport proteins involved in enantioselectivity needs to be further investigated. This Review could help the production of some chiral pesticides to single-enantiomer formulations, thereby reducing pesticide consumption as well as increasing food production and finally reducing human health risks.
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Affiliation(s)
- Fang Wang
- School of Ecology and Environment, Beijing Technology and Business University, Beijing 100048, China
- State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing 100048, China
- China Food Flavor and Nutrition Health Innovation Center, Beijing Technology and Business University, Beijing 100048, China
| | - Xiaoyun Li
- School of Ecology and Environment, Beijing Technology and Business University, Beijing 100048, China
- State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing 100048, China
- China Food Flavor and Nutrition Health Innovation Center, Beijing Technology and Business University, Beijing 100048, China
| | - Shanxue Jiang
- School of Ecology and Environment, Beijing Technology and Business University, Beijing 100048, China
- State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing 100048, China
- China Food Flavor and Nutrition Health Innovation Center, Beijing Technology and Business University, Beijing 100048, China
| | - Jiajun Han
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, China
| | - Junxue Wu
- Institute of Plant and Environmental Protection, Beijing Academy of Agriculture and Forestry Science, Beijing 100097, China
| | - Meilin Yan
- School of Ecology and Environment, Beijing Technology and Business University, Beijing 100048, China
- State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing 100048, China
- China Food Flavor and Nutrition Health Innovation Center, Beijing Technology and Business University, Beijing 100048, China
| | - Zhiliang Yao
- School of Ecology and Environment, Beijing Technology and Business University, Beijing 100048, China
- State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing 100048, China
- China Food Flavor and Nutrition Health Innovation Center, Beijing Technology and Business University, Beijing 100048, China
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Li H, Hu S, Sun F, Sun Q, Wang N, Li B, Zou N, Lin J, Mu W, Pang X. Residual analysis of QoI fungicides in multiple (six) types of aquatic organisms by UPLC-MS/MS under acutely toxic conditions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:12075-12084. [PMID: 36104645 DOI: 10.1007/s11356-022-22972-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 09/06/2022] [Indexed: 06/15/2023]
Abstract
In view of the significance of food safety and the possible relationship between residual enrichment and acute toxicity for pesticides in different aquatic organisms, it is essential to establish a sensitive and reliable determination method for pesticides in different aquatic organisms to analyze the enrichment levels. Quinone outside inhibitor fungicides (QoIs) are lipophilic fungicides that pose environmental threats to aquatic organisms. Previous research has mainly focused on QoI residues in aquatic organisms under chronic toxicity, whereas less is known about how pesticide residues differ among aquatic organism under acutely toxic conditions. In the present study, the residues of QoIs in aquatic organisms (Danio rerio, Rana pipiens, Cherax quadricarinatus, Misgurnus anguillicaudatus, Corbicula fluminea, and Ampullaria gigas) were analyzed by ultrahigh-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) coupled with a proposed QuEChERS method. The proposed method was validated in terms of linearity (coefficients of determination of 0.9980-0.9999), the limits of quantification (0.01 μg·kg-1), the relative standard deviation (0.6-4.4%), and recovery (70.12-118.15%). The results demonstrated that the proposed method fulfilled the requirements for pesticide analysis in all tested aquatic organisms. The residues of QoIs in the same aquatic organism exposed to QoI concentrations of 5 and 500 μg L-1 decreased in the order pyraoxystrobin > pyraclostrobin > triclopyricarb > picoxystrobin > azoxystrobin > fluoxastrobin. Furthermore, the acute toxicity was strongly correlated with the enrichment level of the QoIs in aquatic organisms. This study provides the first documentation of a correlation between the enrichment level of QoIs and acute toxicity in aquatic organisms, which provides a basis for the management of agrochemicals considering aquatic ecological risks.
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Affiliation(s)
- Hong Li
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, People's Republic of China
| | - Shuai Hu
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, People's Republic of China
| | - Fengshou Sun
- Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong, 271018, People's Republic of China
| | - Qi Sun
- Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong, 271018, People's Republic of China
| | - Ning Wang
- Department of Nutrition and Food Hygiene, School of Public Health, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, Shandong, 271016, People's Republic of China
| | - Beixing Li
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, People's Republic of China
- Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong, 271018, People's Republic of China
| | - Nan Zou
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, People's Republic of China
- Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong, 271018, People's Republic of China
| | - Jin Lin
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, People's Republic of China
- Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong, 271018, People's Republic of China
| | - Wei Mu
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, People's Republic of China
- Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong, 271018, People's Republic of China
| | - Xiuyu Pang
- Department of Nutrition and Food Hygiene, School of Public Health, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, Shandong, 271016, People's Republic of China.
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Liu X, Zhou DD, Chen M, Cao YW, Zhuang LY, Lu ZH, Yang ZH. Adsorption behavior of azole fungicides on polystyrene and polyethylene microplastics. CHEMOSPHERE 2022; 308:136280. [PMID: 36084829 DOI: 10.1016/j.chemosphere.2022.136280] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 08/04/2022] [Accepted: 08/28/2022] [Indexed: 06/15/2023]
Abstract
Agricultural plastic films and triazole fungicides are widely used in agricultural production process. Exposure to natural environment, agricultural plastic films will degrade into micron plastic particles, which will adsorb pesticide molecules and may affect their toxicity, biological activity and persistence. The long-term coexistence of microplastics (MPs) and triazole fungicides will bring potential harms to the agricultural ecological environment. Therefore, two kinds of triazole fungicides flusilazole (FLU) and epoxiconazole (EPO) were selected as cases and the adsorption behaviors of them on polystyrene and polyethylene were investigated. A series of factors which could affect the adsorption behavior were evaluated. Specifically, the particle size of MPs could affect its adsorption capacity, and the smaller the particle size, the stronger the adsorption capacity. Moreover, with the increase of pH value from 6.0 to 9.0, the adsorption capacity of MPs to target compounds gradually increased. The effect of ionic strength was evaluated by NaCl, and 0.05% of NaCl was beneficial to the adsorption process, while the continuous increase of NaCl concentration inhibited the adsorption. Oxalic acid and humic acid decreased the adsorption capacity of flusilazole on PE by 15.99-32.00% and PS by 35.02-48.67%, respectively. In addition, compared with the single pesticide system, the adsorption capacity of MPs for flusilazole and epoxiconazole in the binary pesticides system decreased by 36.13-37.93% and 44.36-51.35%, respectively, indicating that competitive adsorption occurred between the two pesticides. Meanwhile, the adsorption process was evaluated by adsorption kinetics and adsorption isotherms and were consistent with pseudo-second-order kinetic model and Freundlich isotherm model, respectively. Finally, several characterization analyses were conducted to investigated the adsorption mechanism, and hydrogen, halogen bonding and hydrophobic interaction proved to play an important role. The study on the adsorption behavior and mechanism of pesticide on MPs was the basis of assessing the risk of joint exposure.
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Affiliation(s)
- Xiao Liu
- College of Plant Science and Technology, Department of Plant Protection, Huazhong Agricultural University, Wuhan, 430070, China
| | - Dong-Dong Zhou
- College of Plant Science and Technology, Department of Plant Protection, Huazhong Agricultural University, Wuhan, 430070, China
| | - Min Chen
- College of Plant Science and Technology, Department of Plant Protection, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yi-Wen Cao
- College of Plant Science and Technology, Department of Plant Protection, Huazhong Agricultural University, Wuhan, 430070, China
| | - Lv-Yun Zhuang
- College of Plant Science and Technology, Department of Plant Protection, Huazhong Agricultural University, Wuhan, 430070, China
| | - Zhi-Heng Lu
- College of Plant Science and Technology, Department of Plant Protection, Huazhong Agricultural University, Wuhan, 430070, China
| | - Zhong-Hua Yang
- College of Plant Science and Technology, Department of Plant Protection, Huazhong Agricultural University, Wuhan, 430070, China.
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Fan X, Tang T, Du S, Sang N, Huang H, Zhang C, Zhao X. Simultaneous Determination of 108 Pesticide Residues in Three Traditional Chinese Medicines Using a Modified QuEChERS Mixed Sample Preparation Method and HPLC-MS/MS. Molecules 2022; 27:molecules27217636. [PMID: 36364466 PMCID: PMC9658470 DOI: 10.3390/molecules27217636] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/02/2022] [Accepted: 11/02/2022] [Indexed: 11/09/2022] Open
Abstract
A rapid, efficient, simple, and high-throughput method for the simultaneous determination of 108 pesticide residues in three traditional Chinese medicines (TCMs) was established, comprising an improved QuEChERS method in combination with HPLC-MS/MS based on mixed samples. A quantity of 10 mL of acetonitrile was used as extraction solvent, and 10 mg of amino-modified multi-walled carbon nanotubes (MWCNTs-NH2) and 150 mg of anhydrous magnesium sulfate (MgSO4) were selected as sorbents for dispersive solid phase extraction. The performance of the method was verified according to the analytical quality control standards of SANTE/11813/2017 guidelines. With good linearity (R2 > 0.9984) in the range of 2−200 μg/L for all pesticides in the selected matrices, and good accuracy, precision, and high sensitivity, the recoveries were in the range of 70−120% for more than 95% of the pesticides, with a relative standard deviation (RSD) of less than 16.82% for all. The limit of detection (LOD) and limit of quantification (LOQ) of the method were 0.01−3.87 μg/kg and 0.07−12.90 μg/kg, respectively, for Fritillaria thunbergii Miq (F. thunbergii), Chrysanthemum Morifolium Ramat (C. morifolium), and Dendrobium officinale Kimura et Migo (D. officinale). The method was successfully applied to 60 batches of actual samples from different regions.
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Affiliation(s)
- Xuyan Fan
- College of Food Science and Engineering, Hainan University, Haikou 570228, China
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Tao Tang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Song Du
- College of Food Science and Engineering, Hainan University, Haikou 570228, China
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Ningning Sang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Hao Huang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Chenghui Zhang
- College of Food Science and Engineering, Hainan University, Haikou 570228, China
- Key Laboratory of Tropical Fruits and Vegetables Quality and Safety for State Market Regulation, Haikou 570206, China
- Correspondence: (C.Z.); (X.Z.); Tel.: +86-571-85273092 (X.Z.)
| | - Xueping Zhao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
- Correspondence: (C.Z.); (X.Z.); Tel.: +86-571-85273092 (X.Z.)
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Li J, Zhou H, Zuo W, An W, Zhang Y, Zhao Q. Simultaneous enantioselective determination of two succinate- dehydrogenase-inhibitor fungicides in plant-origin foods by ultra-high performance liquid chromatography-tandem mass spectrometry. J Chromatogr A 2022; 1677:463325. [PMID: 35853420 DOI: 10.1016/j.chroma.2022.463325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 07/06/2022] [Accepted: 07/08/2022] [Indexed: 11/16/2022]
Abstract
Fluindapyr and penthiopyrad are two new succinate-dehydrogenase-inhibitor fungicides both employed as racemic mixtures of enantiomers to control various fungal pathogens. In the present work, a robust and highly-sensitive method for simultaneous determination of fluindapyr and penthiopyrad enantiomers in plant-origin foods (cereals, fruits and vegetables) was developed using UPLC-MS/MS combined with a chiral stationary phase. Rapid baseline chiral separation of four stereoisomers of fluindapyr and penthiopyrad was obtained within 4.2 min on chiral MX(2)-RH column under reversed-phase conditions (with the eluent of acetonitrile/0.1% formic acid in water =70/30 (V:V) and column temperature maintained at 30 °C). The plant-origin samples were extracted quickly with acetonitrile and purified with multi-walled carbon nanotubes. Excellent linearity for the target analytes was observed in the concentration ranging from 1 to 250 µg/L with regression coefficient no less than 0.9967. The mean recoveries of fluindapyr and penthiopyrad enantiomers from six matrices were 77.1-107.2%, with all relative standard deviations values lower than 9.1%. The limit of quantification of four stereoisomers of two target chiral fungicides was 5 µg/kg. The analysis of real samples reveal that the developed method is suitable for the simultaneous chiral determination of fluindapyr and penthiopyrad residues in cereals, fruits and vegetables samples at enantiomeric level and can support their further investigation on enantioselective environmental behaviors and residue surveillance.
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Affiliation(s)
- Jing Li
- Citrus Research Institute, Southwest University, Chongqing 400712, China; Laboratory of Citrus Quality and Safety Risk Assessment for Citrus Products, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China; National Citrus Engineering Research Center, Chongqing 400712, China.
| | - Huyi Zhou
- Citrus Research Institute, Southwest University, Chongqing 400712, China; Laboratory of Citrus Quality and Safety Risk Assessment for Citrus Products, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China; National Citrus Engineering Research Center, Chongqing 400712, China
| | - Wei Zuo
- Citrus Research Institute, Southwest University, Chongqing 400712, China; Laboratory of Citrus Quality and Safety Risk Assessment for Citrus Products, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China; National Citrus Engineering Research Center, Chongqing 400712, China
| | - Wenjin An
- Citrus Research Institute, Southwest University, Chongqing 400712, China; Laboratory of Citrus Quality and Safety Risk Assessment for Citrus Products, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China; National Citrus Engineering Research Center, Chongqing 400712, China
| | - Yaohai Zhang
- Citrus Research Institute, Southwest University, Chongqing 400712, China; Laboratory of Citrus Quality and Safety Risk Assessment for Citrus Products, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China; National Citrus Engineering Research Center, Chongqing 400712, China
| | - Qiyang Zhao
- Citrus Research Institute, Southwest University, Chongqing 400712, China; Laboratory of Citrus Quality and Safety Risk Assessment for Citrus Products, Ministry of Agriculture and Rural Affairs, Chongqing 400712, China; National Citrus Engineering Research Center, Chongqing 400712, China
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Li H, Zhong Q, Wang M, Luo F, Wang X, Zhou L, Zhang X. Residue degradation, transfer and risk assessment of pyriproxyfen and its metabolites from tea garden to cup by ultra performance liquid chromatography tandem mass spectrometry. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:3983-3993. [PMID: 34994973 DOI: 10.1002/jsfa.11746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 12/26/2021] [Accepted: 01/07/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Tea is one of the most popular drinks in the world. The growth of tea plant is inseparable from the control of pesticides on diseases and pests. Pyriproxyfen is used as a pesticide substitute to control insect pests in tea gardens, but little is known about its residue degradation. Here, we performed an integrative study of the degradation and metabolism of pyriproxyfen from the tea garden to the cup. RESULTS The dissipation half-life of pyriproxyfen during tea growth was 2.74 days, and five metabolites PYPAC, PYPA, DPH-Pyr, 5''-OH-Pyr, and 4'-OH-Pyr were generated. The total processing factors for pyriproxyfen in green tea and black tea were 2.41-2.83 and 2.77-3.70, respectively. The residues of pyriproxyfen and its metabolites were affected by different processing steps. The total leaching rates of pyriproxyfen from green tea and black tea into their infusions were 9.8-12.3% and 5.3-13.8%, respectively. The leaching rates of the five metabolites were higher than that of pyriproxyfen and increased the intake risk. CONCLUSION To ensure safe consumption, the recommended maximum residue limit value of pyriproxyfen in tea can be set to 5 mg kg-1 and the pre-harvest interval can be set to 5 days. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Hongxia Li
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing, China
| | - Qing Zhong
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing, China
| | - Min Wang
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
- College of Horticulture and Landscape, Tianjin Agricultural University, Tianjin, China
| | - Fengjian Luo
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
| | - Xinru Wang
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
| | - Li Zhou
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
| | - Xinzhong Zhang
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
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Zhong Q, Li H, Wang M, Luo F, Wang X, Yan H, Cang T, Zhou L, Chen Z, Zhang X. Enantioselectivity of indoxacarb during the growing, processing, and brewing of tea: Degradation, metabolites, and toxicities. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 823:153763. [PMID: 35151732 DOI: 10.1016/j.scitotenv.2022.153763] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 02/04/2022] [Accepted: 02/05/2022] [Indexed: 06/14/2023]
Abstract
Chiral pesticides are unique hazardous materials. Here, we systematically studied the potentially harmful products of enantioselective indoxacarb degradation throughout tea growth, processing, and brewing and tested their toxicity to tea geometrid larvae and honeybees. The half-lives of S-indoxacarb and R-indoxacarb during tea growth were 2.6 d and 3.3 d, respectively. There was a trend toward the production of S-indoxacarb from R-indoxacarb. The degradation products IN-JT333, IN-MK638, IN-MF014, and IN-KG433 were also characterized in tea growth and processing and detected. IN-JT333, previously known as a direct insecticidal compound produced by the enzymatic transformation of indoxacarb in insects, was first found in plant samples. The fixation and rolling of green tea and the rolling of black tea were the most important steps that affected indoxacarb and its degradation products. The leaching rates of R-indoxacarb and S-indoxacarb were slightly higher in green tea than in black tea. The maximum leaching rates of IN-MK638 and IN-MF014 during the brewing process reached 89.9% and 94.1%, respectively. Contact toxicity tests with honeybees and tea geometrid larvae in the lab showed that the relative toxicities of the compounds could be ranked as follows: S-indoxacarb > indoxacarb (3S + 1R) ≫ R-indoxacarb. TEST toxicity predictions showed that relative toxicities were ranked IN-KG433 > indoxacarb > IN-JT333 > IN-MK638 > IN-MF014. The toxicity of the degradation product IN-KG433 is higher than that of indoxacarb itself, and its maximum leaching rate is as high as 88.2%. It therefore transfers readily from processed tea to the tea infusion during the brewing process. These findings indicate the need to pay attention to the risk of metabolites and enantiomeric differences and provide new, comprehensive insight into the risk factors for indoxacarb in tea and are relevant to the study of other chiral pesticides.
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Affiliation(s)
- Qing Zhong
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; Graduate School, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Hongxia Li
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; Graduate School, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Min Wang
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; College of Horticulture and Landscape, Tianjin Agricultural University, Tianjin 300384, China
| | - Fengjian Luo
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China
| | - Xinru Wang
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China
| | - Haifeng Yan
- Zhejiang Corechem Co., Ltd., Shaoxing 312367, China
| | - Tao Cang
- Institute of Agro-Products Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Li Zhou
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China
| | - Zongmao Chen
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China
| | - Xinzhong Zhang
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China.
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8
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Zhao S, Li M, Simal-Gandara J, Tian J, Chen J, Dai X, Kong Z. Impact of chiral tebuconazole on the flavor components and color attributes of Merlot and Cabernet Sauvignon wines at the enantiomeric level. Food Chem 2022; 373:131577. [PMID: 34819246 DOI: 10.1016/j.foodchem.2021.131577] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 09/18/2021] [Accepted: 11/06/2021] [Indexed: 11/04/2022]
Abstract
The impact of chiral tebuconazole on the flavor and appearance of Merlot and Cabernet Sauvignon wines were systematically studied. Gas chromatography-ion mobility spectrometry and headspace-solid phase microextraction coupled with gas chromatography mass spectrometry qualitatively and quantitatively identified the flavor components, and a photographic colorimeter was used for color attribute analysis. Tebuconazole enantiomers had different effects on the flavor and appearance of young wines, especially R-tebuconazole. The flavor differences were mainly manifested in fruity and floral characteristics of the wine due to changes in the concentrations of acids, alcohols, and esters; R-tebuconazole alters the concentrations of key flavor compounds to the greatest extent. Tebuconazole treatment changes the color of young wines, with the final red shade of wine being control group > rac-tebuconazole ≥ S-tebuconazole > R-tebuconazole. Since chiral tebuconazole negatively alters wine, grapes treated with chiral pesticides should be subject to stricter quality control during processing.
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Affiliation(s)
- Shanshan Zhao
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China; Hebei Agricultural University, College of Food Science and Technology, Hebei Baoding 071001, PR China
| | - Minmin Li
- Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs/Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Jesus Simal-Gandara
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Food Science and Technology, University of Vigo - Ourense Campus, E-32004 Ourense, Spain
| | - Jian Tian
- Hebei Agricultural University, College of Food Science and Technology, Hebei Baoding 071001, PR China; Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Jieyin Chen
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Xiaofeng Dai
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China.
| | - Zhiqiang Kong
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China.
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Li M, Di X, Jiang Z. Enantioselective separation, analysis and stereoselective dissipation of the chiral pesticide cloquintocet-mexyl using a modified QuEChERS method by high-performance liquid chromatography tandem mass spectrometry. CHEMOSPHERE 2022; 291:133084. [PMID: 34848224 DOI: 10.1016/j.chemosphere.2021.133084] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 11/13/2021] [Accepted: 11/24/2021] [Indexed: 06/13/2023]
Abstract
An efficient and novel enantioseparation method was successfully developed and validated to quantify the enantiomers of cloquintocet-mexyl in soil, millet, enoki mushroom, oilseed rape, and watermelon using a modified QuEChERS technique combined with HPLC-MS/MS. This method showed reliable performances for determining both enantiomers of cloquintocet-mexyl in all five matrices. The limits of detection and limits of quantification were in the range of 0.06-0.15 μg kg-1 and 0.2-0.5 μg kg-1, respectively. Good linearities were obtained with correlation coefficients ≥0.9954. The mean recoveries were between 84.1% and 111.5%, with relative standard deviations ranging from 1.2% to 9.8% at three spiked levels. Additionally, the study of stereoselective dissipation of cloquintocet-mexyl in soil indicated that (R)-cloquintocet-mexyl was preferentially degraded. This work is the first to describe a chiral analytical method and enantioselective behavior of cloquintocet-mexyl and provide basic data for the risk evaluation of cloquintocet-mexyl in food and environmental safety.
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Affiliation(s)
- Meng Li
- School of Pharmacy, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, 110016, Liaoning Province, People's Republic of China
| | - Xin Di
- School of Pharmacy, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, 110016, Liaoning Province, People's Republic of China.
| | - Zhen Jiang
- School of Pharmacy, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, 110016, Liaoning Province, People's Republic of China.
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10
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Rapid determination of 134 pesticides in tea through multi-functional filter cleanup followed by UPLC-QTOF-MS. Food Chem 2022; 370:130846. [PMID: 34536785 DOI: 10.1016/j.foodchem.2021.130846] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 07/19/2021] [Accepted: 08/09/2021] [Indexed: 11/23/2022]
Abstract
Ensuring the safety of tea requires effective methods for the simultaneous analysis of pesticide residues in the product. A sensitive and reliable method to scan for 134 pesticide residues in tea was developed that employs a novel Multi-Functional Filter (MFF) based on d-SPE extraction and ultra-high-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry. The adsorption material was developed by porous polyvinylpolypyrrolidone (PVPP) for the removal of polyphenols. Acetonitrile extraction was passed through a syringe and then detected by UPLC-Q-TOF-MS. Method validation revealed satisfactory linearity with correlation coefficients higher than 0.985 for all pesticides. All limits of quantification were below 10 µg/kg. The matrix effects of 133 of the pesticides were nearly negligible (<20%), except for Sebutylazine (=22%). The recoveries at two spiked levels (50, 100 μg/kg) were 66.83-118.33%, and the Relative standard deviation (RSD) was lower than 20%, indicating accuracy and precision of the new method.
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11
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Li H, Zhong Q, Luo F, Wang X, Zhou L, Chen Z, Zhang X. Residue degradation and metabolism of spinetoram in tea: A growing, processing and brewing risk assessment. Food Control 2021. [DOI: 10.1016/j.foodcont.2021.107955] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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12
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Sun R, Yang W, Li Y, Sun C. Multi-residue analytical methods for pesticides in teas: a review. Eur Food Res Technol 2021. [DOI: 10.1007/s00217-021-03765-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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13
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Li Y, Liang H, Qiu L. Enantioselective Bioaccumulation of the Chiral Insecticide Indoxacarb in Zebrafish (Danio rerio). ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2021; 40:1007-1016. [PMID: 33238038 DOI: 10.1002/etc.4943] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 06/08/2020] [Accepted: 11/21/2020] [Indexed: 06/11/2023]
Abstract
Indoxacarb is a typical chiral insecticide widely used in agricultural pest control. In the present study, zebrafish was used as a model animal to explore the enantioselective bioaccumulation behavior of indoxacarb to nontarget species in aquatic environments. Zebrafish were exposed to 0.025 and 0.1 mg/L rac-indoxacarb solution for 12 d under the semistatic method, and the bioconcentration factor (BCF) and enantiomeric fraction of zebrafish were investigated. The results showed that the (-)-R-indoxacarb preferentially accumulated in zebrafish. The BCF values at 0.025 mg/L exposure levels were 1079.8 and 83.4 L/kg for (-)-R-indoxacarb and (+)-S-indoxacarb after 12 d, respectively. The BCF values at 0.1 mg/L exposure levels were 1752.1 and 137.0 L/kg for (-)-R-indoxacarb and (+)-S-indoxacarb after 10 d, respectively. The half-life values of (-)-R-indoxacarb and (+)-S-indoxacarb were 3.47 and 2.05 d for 0.025 mg/L concentration exposure and 4.95 and 2.66 d for 0.1 mg/L concentration exposure, respectively. The enantiomeric fraction values were in the range of 0.48 to 0.55 and 0.89 to 1.00 for water and zebrafish samples, respectively. Studies on the enantioselective bioaccumulation behavior of indoxacarb will provide data for assessing the environmental fate and potential toxic effects of indoxacarb on aquatic organisms. Environ Toxicol Chem 2021;40:1007-1016. © 2020 SETAC.
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Affiliation(s)
- Yanhong Li
- Inner Mongolia Key Laboratory of Environmental Pollution Control and Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, Hohhot, China
| | - Hongwu Liang
- Inner Mongolia Key Laboratory of Environmental Pollution Control and Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, Hohhot, China
| | - Lihong Qiu
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, China
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14
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Li H, Zhong Q, Wang X, Luo F, Zhou L, Sun H, Yang M, Lou Z, Chen Z, Zhang X. The degradation and metabolism of chlorfluazuron and flonicamid in tea: A risk assessment from tea garden to cup. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 754:142070. [PMID: 32920390 DOI: 10.1016/j.scitotenv.2020.142070] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 08/27/2020] [Accepted: 08/27/2020] [Indexed: 06/11/2023]
Abstract
Degradation and metabolism of chlorfluazuron and flonicamid from tea garden to cup were simultaneously investigated by a modified QuEChERS method coupled with UPLC-MS/MS quantification. The dissipation half-lives of chlorfluazuron, flonicamid, and total flonicamid (the sum of flonicamid and its metabolites TFNG, TFNA, and TFNA-AM) in fresh tea leaves during tea growth were 6.0 d, 4.8 d, and 8.1 d, respectively. TFNG and TFNA were generated during tea growth. After tea processing, the residues of chlorfluazuron, flonicamid, and its metabolites in black tea were higher than those in green tea. The average processing factors of chlorfluazuron, flonicamid, and total flonicamid in black tea were 2.54, 3.02, and 2.87, respectively, while in green tea they were 2.40, 2.93, and 2.79, respectively. TFNG, TFNA, and TFNA-AM were formed rapidly during the drying step. Considering the influence of water content at various processing steps, the average loss rates of chlorfluazuron, flonicamid, and total flonicamid residue from fresh tea leaves to black tea were 16.7%, 33.8%, and 20.7%, respectively, and 29.6%, 14.0% and 18.2%, respectively, in the case of green tea. The highest leaching rates of chlorfluazuron, flonicamid, and total flonicamid during tea brewing were 6.8%, 97.0%, and 97.4%, respectively, in black tea infusion, and 6.0%, 98.9%, and 98.6%, respectively, in green tea infusion. The metabolites, especially TFNG, had a higher leaching rate during tea brewing. The migration of chlorfluazuron from fresh leaves to tea infusion was low, and the migration of flonicamid was high. The RQc and RQa of chlorfluazuron and total flonicamid were less than 1. This result indicates that the potential dietary intake risk of chlorfluazuron from tea is negligible. However, the risk of total flonicamid intake is three times higher than that of chlorfluazuron. There is a potential risk of intake of flonicamid and its metabolites in tea for human consumption.
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Affiliation(s)
- Hongxia Li
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Qing Zhong
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Xinru Wang
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; Key Laboratory of Tea Quality and Safety Control, Ministry of Agriculture and Rural Affairs, Hangzhou 310008, China
| | - Fengjian Luo
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; Key Laboratory of Tea Quality and Safety Control, Ministry of Agriculture and Rural Affairs, Hangzhou 310008, China
| | - Li Zhou
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; Key Laboratory of Tea Quality and Safety Control, Ministry of Agriculture and Rural Affairs, Hangzhou 310008, China
| | - Hezhi Sun
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; Key Laboratory of Tea Quality and Safety Control, Ministry of Agriculture and Rural Affairs, Hangzhou 310008, China
| | - Mei Yang
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; Key Laboratory of Tea Quality and Safety Control, Ministry of Agriculture and Rural Affairs, Hangzhou 310008, China
| | - Zhengyun Lou
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; Key Laboratory of Tea Quality and Safety Control, Ministry of Agriculture and Rural Affairs, Hangzhou 310008, China
| | - Zongmao Chen
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; Key Laboratory of Tea Quality and Safety Control, Ministry of Agriculture and Rural Affairs, Hangzhou 310008, China
| | - Xinzhong Zhang
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; Key Laboratory of Tea Quality and Safety Control, Ministry of Agriculture and Rural Affairs, Hangzhou 310008, China.
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15
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Zhang X, Cui X, Wang X, Zhong Q, Zhou L, Luo F, Wang F, Wu L, Chen Z. Residue dissipation, transfer and safety evaluation of picoxystrobin during tea growing and brewing. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:194-204. [PMID: 32623719 DOI: 10.1002/jsfa.10631] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 06/16/2020] [Accepted: 07/05/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Picoxystrobin is a new osmotic and systemic broad-spectrum methoxyacrylate fungicide with a good control effect on tea anthracnose, so it has been proposed to spray picoxystrobin before the occurrence and onset of tea anthracnose during tea bud growth in order to protect them. However, there are few reports about the residue analysis method, field dissipation, terminal residue and risk assessment of picoxystrobin in tea. And there is no scientific and reasonable maximum residue limit of picoxystrobin in green tea. RESULTS A rapid and sensitive analysis method for picoxystrobin residue in fresh tea leaf, green tea, tea infusion and soil was established by UPLC-MS/MS. The spiked recoveries of picoxystrobin ranged from 73.1% to 111.0%, with relative standard deviations from 1.8% to 9.2%. The limits of quantitation were 20 μg kg-1 in green tea, 8 μg kg-1 in fresh tea leaves and soil and 0.16 μg kg-1 in tea infusion. The dissipation half-lives of picoxystrobin in fresh tea leaf and soil were 2.7-6.8 and 2.5-14.4 days, respectively. And the maximum residue of picoxystrobin in green tea was 15.28 mg kg-1 with PHI at 10 days for terminal test. The total leaching rate of picoxystrobin during green tea brewing was lower than 35.8%. CONCLUSIONS According to safety evaluation, the RQc and RQa values of picoxystrobin in tea after 5 to 14 days for the last application were significantly lower than 1. Therefore, the maximum residue limit value of picoxystrobin in tea that we suggest to set at 20 mg kg-1 can ensure the safety of tea for human drinking. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Xinzhong Zhang
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
| | - Xuan Cui
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
- College of Horticulture and Landscape, Tianjin Agricultural University, Tianjin, China
| | - Xinru Wang
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
| | - Qing Zhong
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing, China
| | - Li Zhou
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
| | - Fengjian Luo
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
| | - Fang Wang
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
| | - Luchao Wu
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
| | - Zongmao Chen
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
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16
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Zhao Z, Sun R, Su Y, Hu J, Liu X. Fate, residues and dietary risk assessment of the fungicides epoxiconazole and pyraclostrobin in wheat in twelve different regions, China. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 207:111236. [PMID: 32911182 DOI: 10.1016/j.ecoenv.2020.111236] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 08/15/2020] [Accepted: 08/23/2020] [Indexed: 06/11/2023]
Abstract
The fungicides epoxiconazole and pyraclostrobin have been widely used to control wheat fusarium head blight. This study was designed to investigate the dissipation behaviors in different climate regions and provide data for the modification of maximum residue limits of the two fungicides. Wheat samples were collected from field sites in twelve different regions, China and analyzed with an HPLC-MS/MS method for simultaneous detection of epoxiconazole and pyraclostrobin in wheat. The average recoveries of epoxiconazole and pyraclostrobin in wheat matrix were 87-112% and 85-102%, respectively, with the relative standard deviations ≤8.1%. The limits of quantification of epoxiconazole and pyraclostrobin in grain and straw were both 0.01 mg/kg. The dissipations of epoxiconazole and pyraclostrobin followed first-order kinetics, with the half-lives of 10.3 days and 7.6 days, respectively. The terminal residues of epoxiconazole and pyraclostrobin in grain were below 0.034 and 0.028 mg/kg, separately, both lower than the maximum residue limits recommended by China. Based on Chinese dietary pattern and terminal residue distributions, the risk quotients of epoxiconazole and pyraclostrobin were 13.9% and 65.9%, respectively, revealing the evaluated wheat exhibited an acceptably low dietary risk to consumers.
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Affiliation(s)
- Zixi Zhao
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Runxia Sun
- School of Marine Sciences, Nanjing University of Information Science and Technology, Nanjing, 210044, China
| | - Yue Su
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Jiye Hu
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Xiaolu Liu
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China.
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17
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Wang J, Jia B, Li Y, Ren B, Liang H, Yan D, Xie H, Zhang X, Liang H. Effects of multi-walled carbon nanotubes on the enantioselective toxicity of the chiral insecticide indoxacarb toward zebrafish (Danio rerio). JOURNAL OF HAZARDOUS MATERIALS 2020; 397:122724. [PMID: 32387829 DOI: 10.1016/j.jhazmat.2020.122724] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 03/14/2020] [Accepted: 04/11/2020] [Indexed: 06/11/2023]
Abstract
The mass production and usage of carbon nanotubes (CNTs) have led to the inevitable release into the environment, and the effects of CNTs on the toxicity of co-existing pollutants have been well documented. However, knowledge of the effects of CNTs on the enantioselective toxicity of chiral compounds is limited. Using zebrafish as an experimental model, the enantioselective expression of the apoptosis, CYP3C and EAAT-related genes were analyzed following exposure to multi-walled carbon nanotubes (MWCNTs) (0.05 and 0.5 mg/L), rac-/R-/S-indoxacarb (0.01 mg/L), or the combination of rac-/R-/S-indoxacarb mixed with MWCNTs for 28d. Sex-specific differences were observed in both the liver and brain of zebrafish. The expression of apoptosis and CYP3C-related genes was 16.55-44.29 times higher in the livers of males treated with R-indoxacarb than in S-indoxacarb treated groups. The EAAT-related genes were expressed at 1.38-2.56 times higher levels in the brain of females treated with R-indoxacarb than in S-indoxacarb-treated groups. In the presence of MWCNTs, the expression of caspase-3, cyp3c3, cyp3c4, eaat1a, eaat1b and eaat2 in the livers of males and brains of females treated with S-indoxacarb were 1.65-15.33 times higher than in fish treated with R-indoxacarb. Based on these results, MWCNTs affected the enantioselective toxicity of indoxacarb toward zebrafish.
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Affiliation(s)
- Ju Wang
- Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China
| | - Bo Jia
- Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China
| | - Yanhong Li
- Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China
| | - Bo Ren
- Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China
| | - Hanlin Liang
- Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China
| | - Dongyan Yan
- Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China
| | - Haiyan Xie
- Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China
| | - Xiaodong Zhang
- Inner Mongolia Institute for Drug Control, Hohhot, Inner Mongolia, 010020, China
| | - Hongwu Liang
- Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China.
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18
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Zhang X, Sun H, Wang X, Li H, Zhong Q, Luo F, Chen Z. Enantioselective residue analysis of oxathiapiprolin and its metabolite in tea and other crops by ultra-high performance liquid chromatography-tandem mass spectrometry. J Sep Sci 2020; 43:3856-3867. [PMID: 32776703 DOI: 10.1002/jssc.202000457] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 08/04/2020] [Accepted: 08/06/2020] [Indexed: 12/28/2022]
Abstract
Oxathiapiprolin is the first chiral piperidinyl thiazole isoxazoline fungicide developed to control downy mildew and other diseases, and there were no prior reports on its enantiomeric residue. In this study, a modified quick, easy, cheap, effective, rugged, and safe extraction and purification method followed by ultra-high performance liquid chromatography-tandem mass spectrometry determination was first developed and validated for the residue analysis of oxathiapiprolin enantiomers and its metabolite IN-E8S72 in green tea and other crops. Oxathiapiprolin enantiomers and IN-E8S72 were separated on a chiral Lux Cellulose-3 column with the use of 0.1% formic acid in acetonitrile and 5 mmol/L ammonium acetate in water as mobile phases. IN-E8S72 was eluted first, followed by (-)-oxathiapiprolin, and then (+)-oxathiapiprolin. The recoveries ranged from 53.3 to 125.3% with relative standard deviations ranging from 1.4 to 16.0%. The limits of quantification for (-)-oxathiapiprolin and (+)-oxathiapiprolin were 0.005 mg/kg in romaine lettuce, head cabbage, potato, grape, and garlic, 0.01 mg/kg in soybean and pea, and 0.025 mg/kg in green tea and dry pepper. The limits of quantification of IN-E8S72 were twice those of (-)-oxathiapiprolin. Screening results with real market samples indicated that there was no enantiomeric excess in the oxathiapiprolin residue in romaine lettuce.
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Affiliation(s)
- Xinzhong Zhang
- Research Center of Quality Safety for Agricultural Products, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, P. R. China
- Key Laboratory of Tea Quality and Safety Control, Ministry of Agriculture and Rural Affairs, Hangzhou, P. R. China
| | - Hezhi Sun
- Research Center of Quality Safety for Agricultural Products, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, P. R. China
- Key Laboratory of Tea Quality and Safety Control, Ministry of Agriculture and Rural Affairs, Hangzhou, P. R. China
| | - Xinru Wang
- Research Center of Quality Safety for Agricultural Products, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, P. R. China
- Key Laboratory of Tea Quality and Safety Control, Ministry of Agriculture and Rural Affairs, Hangzhou, P. R. China
| | - Hongxia Li
- Research Center of Quality Safety for Agricultural Products, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, P. R. China
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing, P. R. China
| | - Qing Zhong
- Research Center of Quality Safety for Agricultural Products, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, P. R. China
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing, P. R. China
| | - Fengjian Luo
- Research Center of Quality Safety for Agricultural Products, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, P. R. China
- Key Laboratory of Tea Quality and Safety Control, Ministry of Agriculture and Rural Affairs, Hangzhou, P. R. China
| | - Zongmao Chen
- Research Center of Quality Safety for Agricultural Products, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, P. R. China
- Key Laboratory of Tea Quality and Safety Control, Ministry of Agriculture and Rural Affairs, Hangzhou, P. R. China
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Orazbayeva D, Koziel JA, Trujillo-Rodríguez MJ, Anderson JL, Kenessov B. Polymeric ionic liquid sorbent coatings in headspace solid-phase microextraction: A green sample preparation technique for the determination of pesticides in soil. Microchem J 2020. [DOI: 10.1016/j.microc.2020.104996] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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20
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Yu C, Hao D, Chu Q, Wang T, Liu S, Lan T, Wang F, Pan C. A one adsorbent QuEChERS method coupled with LC-MS/MS for simultaneous determination of 10 organophosphorus pesticide residues in tea. Food Chem 2020; 321:126657. [DOI: 10.1016/j.foodchem.2020.126657] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 03/19/2020] [Accepted: 03/20/2020] [Indexed: 01/18/2023]
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21
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Liu H, Lin T, Li Q. Development and Validation of Multiclass Chiral Pesticide Residues Analysis Method in Tea by QuEChERS Combined Liquid Chromatography Quadruple-Linear Ion Trap Mass Spectrometry. J AOAC Int 2020; 103:865-871. [PMID: 33241360 DOI: 10.1093/jaocint/qsz014] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 10/15/2019] [Accepted: 10/28/2019] [Indexed: 11/14/2022]
Abstract
BACKGROUND No single pure enantiomeric pesticide residues was investigated and set regulations for tea quality safety and risk assessment. OBJECTIVE Due to lack of chiral pesticide analysis method and data, the Maximum residue limits (MRLs) about the chiral pesticides in tea was unknown. METHOD An analytical method for the determination of chiral pesticide residues by QuEChERS combined chiral liquid chromatography quadruple/linear ion trap mass spectrometry (LC-MS/MS-Qtrap) was developed and applied to the analysis of various teas. RESULTS The mean recoveries for pesticides enantiomers ranged from 75.9% to 112.4%. Reproducibility represented by relative standard deviation percentage was 10% or less. Good linearity was achieved for all enantiomers with determination coefficients (r2) greater than 0.99. The detection of limit (CCα) and quantification of limit (CCβ) were 0.2 ∼1 µg/kg and 0.5∼5 µg/kg, respectively. CONCLUSIONS The method was suitable for monitoring the enantiomeric pesticide residues in various teas. HIGHLIGHTS Enantioselective multiclass pesticide residues were determined in various teas by LC-MS/MS-Qtrap, additional Qtrap scan functions greatly enhance the performance of screening, confirmation, and identification of chiral pesticides.
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Affiliation(s)
- Hongcheng Liu
- Institute of Quality Standard and Testing Technology, Yunnan Academy of Agriculture Science; Supervision & Testing Center for Farm Product Quality, Ministry of Agriculture, (Kunming); Laboratory of Quality & Safety Risk Assessment for Agro-Product, Ministry of Agriculture, (Kunming), 650223, Kunming, P. R. China
| | - Tao Lin
- Institute of Quality Standard and Testing Technology, Yunnan Academy of Agriculture Science; Supervision & Testing Center for Farm Product Quality, Ministry of Agriculture, (Kunming); Laboratory of Quality & Safety Risk Assessment for Agro-Product, Ministry of Agriculture, (Kunming), 650223, Kunming, P. R. China
| | - Qiwan Li
- Institute of Quality Standard and Testing Technology, Yunnan Academy of Agriculture Science; Supervision & Testing Center for Farm Product Quality, Ministry of Agriculture, (Kunming); Laboratory of Quality & Safety Risk Assessment for Agro-Product, Ministry of Agriculture, (Kunming), 650223, Kunming, P. R. China
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22
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Liu H, Lin T, Li Q. A magnetic multi-walled carbon nanotube preparative method for analyzing asymmetric carbon, phosphorus and sulfur atoms of chiral pesticide residues in Chinese herbals by chiral liquid chromatography-quadrupole/linear ion trap mass spectrometry determination. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1148:122152. [PMID: 32422531 DOI: 10.1016/j.jchromb.2020.122152] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 05/06/2020] [Accepted: 05/07/2020] [Indexed: 11/16/2022]
Abstract
An analytical method for the determination of asymmetric carbon, phosphorus and sulfur atoms in chiral pesticide residues by magnetic multi-walled carbon nanotube sample pretreatment combined with chiral ultra-performance liquid chromatography/quadrupole/linear ion trap mass spectrometry (UPLC-MS/Qtrap) was developed and applied to chiral pesticide residues analysis in Chinese herbals. Eleven different chiral pesticides were found, and 36.4% were positive in Chinese herbals. Three plants containing detectable pesticide residues were observed in Dendrobium nobile, Panax notoginseng flowers and honeysuckle, in the order of decreasing detected concentration. High detection frequencies of 26.1% for (R/S)-(±)-difenoconazole and 14.5% for (R/S)-(±)-metalaxyl and (R/S)-(±)-propiconazole were observed, the residual amount for (R/S)-(±)-difenoconazole, (R/S)-(±)-metalaxyl and (R/S)-(±)-propiconazole were 0.32 ~ 2.5 mg/kg, 0.022 ~ 0.23 mg/kg, 0.62 ~ 3.21 mg/kg respectively. The EF value of (R/S)-(±)-difenoconazole was 0.506 ± 0.046. The EF value of (R/S)-(±)-metalaxyl was lower than 0.5 in Dendrobium nobile, Panax notoginseng flowers, Panax notoginseng roots and hawthorn. The EF of (R/S)-(±)-propiconazole was not significantly enantioselective in honeysuckle and Panax notoginseng flowers. The enantioselectivity of various pesticide residues in different plants cannot be predicted from our existing knowledge and may closely depend on plant growth, environmental conditions or molecular structure.
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Affiliation(s)
- Hongcheng Liu
- Institute of Quality Standard and Testing Technology, Yunnan Academy of Agriculture Science, Supervision & Testing Center for Farm Product Quality, Ministry of Agriculture, (Kunming), Laboratory of Quality & Safety Risk Assessment for Agro-Product, Ministry of Agriculture, (Kunming), 650223 Kunming, PR China
| | - Tao Lin
- Institute of Quality Standard and Testing Technology, Yunnan Academy of Agriculture Science, Supervision & Testing Center for Farm Product Quality, Ministry of Agriculture, (Kunming), Laboratory of Quality & Safety Risk Assessment for Agro-Product, Ministry of Agriculture, (Kunming), 650223 Kunming, PR China
| | - Qiwan Li
- Institute of Quality Standard and Testing Technology, Yunnan Academy of Agriculture Science, Supervision & Testing Center for Farm Product Quality, Ministry of Agriculture, (Kunming), Laboratory of Quality & Safety Risk Assessment for Agro-Product, Ministry of Agriculture, (Kunming), 650223 Kunming, PR China.
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Li M, Liang X, Guo X, Di X, Jiang Z. Enantiomeric separation and enantioselective determination of some representive non-steroidal anti-inflammatory drug enantiomers in fish tissues by using chiral liquid chromatography coupled with tandem mass spectrometry. Microchem J 2020. [DOI: 10.1016/j.microc.2019.104511] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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24
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Chen S, Wan S, Lan Q, Zheng Y, Zhu X. Magnetic graphene oxide-ultrathin nickel–organic framework composite for the extraction and determination of epoxiconazole in food samples. RSC Adv 2020; 10:44793-44797. [PMID: 35516262 PMCID: PMC9058641 DOI: 10.1039/d0ra08650a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Accepted: 12/02/2020] [Indexed: 11/30/2022] Open
Abstract
In this work, a magnetic graphene oxide-ultrathin metal–organic framework composite (Fe3O4@SiO2-GO-Ni-MOF) was synthesized for the first time. Employing Fe3O4@SiO2-GO-Ni-MOF composite as extractant, a novel method for the separation and analysis of the pesticide epoxiconazole was established with the assistance of high performance liquid chromatography (HPLC). The adsorption mechanisms were studied including by adsorption kinetics, thermodynamic parameters and adsorption isotherms. The experimental results showed that this method was convenient, operable, effective and practical for the extraction and determination of epoxiconazole in real samples. Schematic illustration for the MSPE procedures.![]()
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Affiliation(s)
- Songqing Chen
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Suyu Wan
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Qingchun Lan
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Yan Zheng
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Xiashi Zhu
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
- College of Guangling
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25
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A liquid chromatography detector based on continuous-flow chemical vapor generation coupled glow discharge atomic emission spectrometry: Determination of organotin compounds in food samples. J Chromatogr A 2019; 1608:460406. [DOI: 10.1016/j.chroma.2019.460406] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 07/25/2019] [Accepted: 07/26/2019] [Indexed: 11/17/2022]
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26
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Wen Y, Wang Z, Gao Y, Zhao X, Gao B, Zhang Z, Li L, He Z, Wang M. Novel Liquid Chromatography-Tandem Mass Spectrometry Method for Enantioseparation of Tefluthrin via a Box-Behnken Design and Its Stereoselective Degradation in Soil. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:11591-11597. [PMID: 31557017 DOI: 10.1021/acs.jafc.9b04888] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A simple and eco-friendly dispersive solid-phase extraction method coupled with ultra performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) was developed for the determination of the chiral pesticide tefluthrin in food and environmental samples. The response surface methodology was applied to optimize separation conditions. The elution order of tefluthrin enantiomers was Z-cis-(1S,3S)-(-)-tefluthrin and Z-cis-(1R,3R)-(+)-tefluthrin on a Lux Cellulose-1 chiral column was identified via a polarimeter and vibrating circular dichroism. The average recoveries in five matrices ranged from 76.9 to 107.6%, with intraday relative standard deviations (RSDs) less than 15.6% and interday RSDs less than 12.5% for two enantiomers. The enantioselective degradation was investigated via laboratory incubation experiments. Slightly enantioselective degradation was observed under aerobic conditions; (1S,3S)-tefluthrin degraded preferentially with the enantiomer fraction value of 0.57 at 120 days of incubation. No remarkable enantioselective degradation was observed under anaerobic and sterile conditions. It was the first time that pyrethroid pesticides were determined at the enantiomer levels via UPLC-MS/MS. This novel method was successfully applied for the enantioselective analysis of tefluthrin enantiomers in authentic samples, indicating its efficacy in investigating the environmental stereochemistry of tefluthrin in the food web and environment. It is of crucial importance to improve risk assessment and regulation of chiral pesticides in an agricultural system.
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Affiliation(s)
- Yong Wen
- Department of Pesticide Science, College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application , Nanjing Agricultural University , 1 Weigang Road , Nanjing , Jiangsu 210095 , People's Republic of China
| | - Zhen Wang
- Department of Pesticide Science, College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application , Nanjing Agricultural University , 1 Weigang Road , Nanjing , Jiangsu 210095 , People's Republic of China
| | - Yingying Gao
- Department of Pesticide Science, College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application , Nanjing Agricultural University , 1 Weigang Road , Nanjing , Jiangsu 210095 , People's Republic of China
| | - Xuejun Zhao
- Department of Pesticide Science, College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application , Nanjing Agricultural University , 1 Weigang Road , Nanjing , Jiangsu 210095 , People's Republic of China
| | - Beibei Gao
- Department of Pesticide Science, College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application , Nanjing Agricultural University , 1 Weigang Road , Nanjing , Jiangsu 210095 , People's Republic of China
| | - Zhaoxian Zhang
- Department of Pesticide Science, College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application , Nanjing Agricultural University , 1 Weigang Road , Nanjing , Jiangsu 210095 , People's Republic of China
| | - Lianshan Li
- Department of Pesticide Science, College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application , Nanjing Agricultural University , 1 Weigang Road , Nanjing , Jiangsu 210095 , People's Republic of China
| | - Zongzhe He
- Department of Pesticide Science, College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application , Nanjing Agricultural University , 1 Weigang Road , Nanjing , Jiangsu 210095 , People's Republic of China
| | - Minghua Wang
- Department of Pesticide Science, College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application , Nanjing Agricultural University , 1 Weigang Road , Nanjing , Jiangsu 210095 , People's Republic of China
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27
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Li L, Wang H, Shuang Y, Li L. The preparation of a new 3,5-dichlorophenylcarbamated cellulose-bonded stationary phase and its application for the enantioseparation and determination of chiral fungicides by LC-MS/MS. Talanta 2019; 202:494-506. [DOI: 10.1016/j.talanta.2019.05.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Revised: 04/20/2019] [Accepted: 05/02/2019] [Indexed: 11/15/2022]
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28
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Zhang X, Wang X, Luo F, Sheng H, Zhou L, Zhong Q, Lou Z, Sun H, Yang M, Cui X, Chen Z. Application and enantioselective residue determination of chiral pesticide penconazole in grape, tea, aquatic vegetables and soil by ultra performance liquid chromatography-tandem mass spectrometry. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 172:530-537. [PMID: 30743169 DOI: 10.1016/j.ecoenv.2019.01.103] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 01/18/2019] [Accepted: 01/29/2019] [Indexed: 06/09/2023]
Abstract
Penconazole is a typical triazole fungicide with wide use on fruits, vegetables, and tea plants to control powdery mildew. In the present study, an efficient graphite carbon black solid phase extraction (GCB-SPE) purification combined with chiral ultra performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS) method was developed for determination of penconazole enantiomers in different complex matrices, including grape, tea, soil, lotus root, lotus leaf, lotus seed and hulls. The method was then applied to investigate the enantioselective dissipation of penconazole enantiomers in a real field experiment of grape and soil. As a result, a satisfactory separation of penconazole enantiomers on a chiral Lux Cellulose-2 column (150 mm × 2 mm i.d., 3 µm) was obtained with 0.1% formic acid in methanol and 10 mmol L-1 ammonium acetate in water (75/25, v/v) as mobile phase at 0.25 mL min-1. The enantiomer (+)-penconazole was firstly eluted, and (-)-penconazole was then eluted. The method showed reliable performances in linearity, recovery and precision, the recoveries of (+)-penconazole and (-)-penconazole in all of six matrices were between 70.5% and 121.0% with the relative standard deviations (RSDs) ranging from 0.8% to 23.6% at the low, medium and high spiked levels. The limits of quantitation (LOQs) of this method were lower than 0.0025 mg kg-1 in grape, soil and lotus root, 0.005 mg kg-1 in lotus leaf, lotus seed meat and lotus seed shell, and 0.0125 mg kg-1 in tea. Results of field trials indicated that (-)-penconazole degraded faster than its (+)-isomer in grape. While only a moderate stereoselectivity was observed in soil, with (-)-penconazole preferential degraded. The proposed method could be used to investigate enantioselective environmental behavior of penconazole enantiomers in complex matrices. And results in this study could provide useful information on realistic risk assessment of penconazole in grape.
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Affiliation(s)
- Xinzhong Zhang
- Research Center of Quality Safety for Agricultural Products, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; Key Laboratory of Tea Quality and Safety Control, Ministry of Agriculture, Hangzhou 310008, China.
| | - Xinru Wang
- Research Center of Quality Safety for Agricultural Products, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China.
| | - Fengjian Luo
- Research Center of Quality Safety for Agricultural Products, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; Key Laboratory of Tea Quality and Safety Control, Ministry of Agriculture, Hangzhou 310008, China.
| | - Huishan Sheng
- Research Center of Quality Safety for Agricultural Products, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; College of Horticulture and Landscape, Tianjin Agricultural University, Tianjin 300384, China.
| | - Li Zhou
- Research Center of Quality Safety for Agricultural Products, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; Key Laboratory of Tea Quality and Safety Control, Ministry of Agriculture, Hangzhou 310008, China.
| | - Qing Zhong
- Research Center of Quality Safety for Agricultural Products, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China.
| | - Zhengyun Lou
- Research Center of Quality Safety for Agricultural Products, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; Key Laboratory of Tea Quality and Safety Control, Ministry of Agriculture, Hangzhou 310008, China.
| | - Hezhi Sun
- Research Center of Quality Safety for Agricultural Products, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China.
| | - Mei Yang
- Research Center of Quality Safety for Agricultural Products, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China.
| | - Xuan Cui
- Research Center of Quality Safety for Agricultural Products, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; College of Horticulture and Landscape, Tianjin Agricultural University, Tianjin 300384, China.
| | - Zongmao Chen
- Research Center of Quality Safety for Agricultural Products, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; Key Laboratory of Tea Quality and Safety Control, Ministry of Agriculture, Hangzhou 310008, China.
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29
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Petrie B, Camacho Muñoz MD, Martín J. Stereoselective LC–MS/MS methodologies for environmental analysis of chiral pesticides. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2018.11.010] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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30
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Zhang X, Zhao Y, Cui X, Wang X, Shen H, Chen Z, Huang C, Meruva N, Zhou L, Wang F, Wu L, Luo F. Application and enantiomeric residue determination of diniconazole in tea and grape and apple by supercritical fluid chromatography coupled with quadrupole-time-of-flight mass spectrometry. J Chromatogr A 2018; 1581-1582:144-155. [DOI: 10.1016/j.chroma.2018.10.051] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Accepted: 10/29/2018] [Indexed: 01/30/2023]
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31
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Chen H, Gao G, Yin P, Dai J, Chai Y, Liu X, Lu C. Enantioselectivity and residue analysis of fipronil in tea (Camellia sinensis) by ultra-performance liquid chromatography Orbitrap mass spectrometry. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2018; 35:2000-2010. [DOI: 10.1080/19440049.2018.1497306] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Hongping Chen
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
- Key Laboratory of Tea Quality and Safety, Ministry of Agriculture, Hangzhou, China
| | - Guanwei Gao
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
- Key Laboratory of Tea Quality and Safety, Ministry of Agriculture, Hangzhou, China
| | - Peng Yin
- Department of Tea Science, Xinyang Agriculture and Forestry University, Xinyang, China
| | - Jinxia Dai
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
- Key Laboratory of Tea Quality and Safety, Ministry of Agriculture, Hangzhou, China
| | - Yunfeng Chai
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
- Key Laboratory of Tea Quality and Safety, Ministry of Agriculture, Hangzhou, China
| | - Xin Liu
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
- Key Laboratory of Tea Quality and Safety, Ministry of Agriculture, Hangzhou, China
| | - Chengyin Lu
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
- Key Laboratory of Tea Quality and Safety, Ministry of Agriculture, Hangzhou, China
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32
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Shi L, Gui T, Zhao S, Xu J, Wang F, Sui C, Zhang Y, Hu D. Degradation and residues of indoxacarb enantiomers in rice plants, rice hulls and brown rice using enriched S-
indoxacarb formulation and enantiopure formulation. Biomed Chromatogr 2018; 32:e4301. [DOI: 10.1002/bmc.4301] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 05/17/2018] [Accepted: 05/23/2018] [Indexed: 01/28/2023]
Affiliation(s)
- Lihong Shi
- Guizhou University; State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education; Guiyang People's Republic of China
| | - Ting Gui
- Guizhou University; State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education; Guiyang People's Republic of China
| | - Shan Zhao
- Guizhou University; State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education; Guiyang People's Republic of China
| | - Jin Xu
- Guizhou University; State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education; Guiyang People's Republic of China
| | - Fei Wang
- Guizhou University; State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education; Guiyang People's Republic of China
| | - Changling Sui
- Guizhou University; State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education; Guiyang People's Republic of China
| | - Yuping Zhang
- Guizhou University; State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education; Guiyang People's Republic of China
| | - Deyu Hu
- Guizhou University; State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education; Guiyang People's Republic of China
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33
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Determination of flumequine enantiomers and 7-hydroxyflumequine in water and sediment by chiral HPLC coupled with hybrid quadrupole-time-of-flight mass spectrometer. Sci Rep 2018; 8:7582. [PMID: 29765079 PMCID: PMC5953928 DOI: 10.1038/s41598-018-25889-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 04/30/2018] [Indexed: 12/23/2022] Open
Abstract
A liquid chromatography-tandem mass spectrometric (LC-MS/MS) method for simultaneous enantiomeric analysis of flumequine and its metabolite 7-hydroxyflumequine in water and sediment had been developed based on the separation method. Sediment samples were extracted with ACN and EDTA-Mcllvaine buffer solution (40:60, v/v) then were enriched and cleaned-up by Cleanert PEP solid-phase extraction cartridges. The extract solvent, solid cartridges, mobile phase ratios, and chiral separation column were all optimized to reach high sensitivity and selectivity, good peak shape, and satisfactory resolution. The results showed that the calibration curves of flumequine enantiomers and 7-hydroxyflumequine were linear in the range of 1.0 to 200.0 µg/L with correlation coefficients of 0.9822–0.9988, the mean recoveries for both the enantiomers ranged from 69.9–84.6% with relative standard deviations (RSDs) being 13.1% or below. The limits of detection (LODs) for both flumequine enantiomers were 2.5 µg/L and 5.0 µg/kg in water and sediment samples, whereas the limits of quantification (LOQs) were 8.0 µg/L and 15.0 µg/kg, respectively. While the LODs for 7-hydroxyflumequine were 3.2 µg/L in water samples and 7.0 µg/kg in sediment samples. The proposed method will be extended for studies on the degradation kinetics and environmental behaviors and providing additional information for reliable risk assessment of these chiral antibiotics.
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34
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Liu H, Wang P, Zhou Z, Liu D. Enantioselective dissipation of pyriproxyfen in soils and sand. Chirality 2017; 29:358-368. [DOI: 10.1002/chir.22697] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Accepted: 12/04/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Hui Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry; China Agricultural University; Beijing P.R. China
| | - Peng Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry; China Agricultural University; Beijing P.R. China
| | - Zhiqiang Zhou
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry; China Agricultural University; Beijing P.R. China
| | - Donghui Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry; China Agricultural University; Beijing P.R. China
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35
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Qi P, Yuan Y, Wang Z, Wang X, Xu H, Zhang H, Wang Q, Wang X. Use of liquid chromatography- quadrupole time-of-flight mass spectrometry for enantioselective separation and determination of pyrisoxazole in vegetables, strawberry and soil. J Chromatogr A 2016; 1449:62-70. [DOI: 10.1016/j.chroma.2016.04.051] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Revised: 04/15/2016] [Accepted: 04/18/2016] [Indexed: 11/27/2022]
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36
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Liu Y, Wu B, Wang P, Shamsi SA. Synthesis, characterization, and application of polysodium N-alkylenyl α-d-glucopyranoside surfactants for micellar electrokinetic chromatography-tandem mass spectrometry. Electrophoresis 2016; 37:913-23. [PMID: 26763089 DOI: 10.1002/elps.201500434] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Revised: 12/05/2015] [Accepted: 12/05/2015] [Indexed: 11/08/2022]
Abstract
Sugar-based ionic surfactants forming micelles are known to suppress ESI of various compounds due to decrease in surface tension upon micelle formation . For the first time, poly (sodium N-undecylenyl-α-d-glucopyranoside 4,6-hydrogen phosphate, (poly-α-d-SUGP) based surfactants with different chain lengths and head groups have been successfully synthesized, characterized, and applied as compatible chiral selector for MEKC-ESI-MS/MS. First, the effect of polymerization concentration of the monomer, α-d-SUGP, was evaluated by enantioseparation of one anionic compound (1,1'-binaphthyl-2,2'diyl-hydrogen phosphate) and one zwitterionic compound (dansylated phenylalanine) in MEKC-UV to find the optimum molar surfactant concentration for polymerization. Next, MEKC-UV and MEKC-MS were compared for the enantioseparation of 1,1'-binaphthyl-2,2'diyl-hydrogen phosphate. The influence of polymeric glucopyranoside based surfactant head groups and carbon chain lengths on chiral Rs was evaluated for two classes of cationic drugs (ephedrine alkaloids and β-blockers). Finally, enantioselective MEKC-MS of ephedrine alkaloids and β-blockers were profiled at their optimum pH 5.0 and 7.0, respectively, using 20 mM NH4 OAc, 25 mM poly-α-d-SUGP at 30 kV and 25°C under optimum spray chamber conditions. The LOD for most of the enantiomers ranges from 10 to 100 ng/mL with S/N of at least ≥3.0.
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Affiliation(s)
- Yijin Liu
- Department of Chemistry, Georgia State University, Atlanta, GA, US
| | - Baolin Wu
- Department of Chemistry, Georgia State University, Atlanta, GA, US
| | - Peng Wang
- Department of Chemistry, Georgia State University, Atlanta, GA, US
| | - Shahab A Shamsi
- Department of Chemistry, Georgia State University, Atlanta, GA, US
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37
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Zhang Q, Shi H, Gao B, Tian M, Hua X, Wang M. Enantioseparation and determination of the chiral phenylpyrazole insecticide ethiprole in agricultural and environmental samples and its enantioselective degradation in soil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 542:845-853. [PMID: 26556749 DOI: 10.1016/j.scitotenv.2015.10.132] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 10/26/2015] [Accepted: 10/26/2015] [Indexed: 06/05/2023]
Abstract
An effective method for the enantioselective determination of ethiprole enantiomers in agricultural and environmental samples was developed. The effects of solvent extraction, mobile phase and thermodynamic parameters for chiral recognition were fully investigated. Complete enantioseparation of the ethiprole enantiomers was achieved on a Lux Cellulose-2 column. The stereochemical structures of ethiprole enantiomers were also determined, and (R)-(+)-ethiprole was first eluted. The average recoveries were 82.7-104.9% with intra-day RSD of 1.7-8.2% in soil, cucumber, spinach, tomato, apple and peach under optimal conditions. Good linearity (R(2)≥0.9991) was obtained for all the matrix calibration curves within a range of 0.1 to 10 mg L(-1). The limits of detection for both enantiomers were estimated to be 0.008 mg kg(-1) in soil, cucumber, spinach and tomato and 0.012 mg kg(-1) in apple and peach, which were lower than the maximum residue levels established in Japan. The results indicate that the proposed method is convenient and reliable for the enantioselective detection of ethiprole in agricultural and environmental samples. The behavior of ethiprole in soil was studied under field conditions and the enantioselective degradation was observed with enantiomer fraction values varying from 0.494 to 0.884 during the experiment. The (R)-(+)-ethiprole (t1/2=11.6 d) degraded faster than (S)-(-)-ethiprole (t1/2=34.7 d). This report is the first describe a chiral analytical method and enantioselective behavior of ethiprole, and these results should be extremely useful for the risk evaluation of ethiprole in food and environmental safety.
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Affiliation(s)
- Qing Zhang
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing 210095, PR China
| | - Haiyan Shi
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing 210095, PR China
| | - Beibei Gao
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing 210095, PR China
| | - Mingming Tian
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing 210095, PR China
| | - Xiude Hua
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing 210095, PR China
| | - Minghua Wang
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing 210095, PR China.
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38
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Páleníková A, Hrouzková S. Nutraceutical Products—State-of-the-Art for Sample Preparation in Pesticide Residues Analysis. SEPARATION AND PURIFICATION REVIEWS 2016. [DOI: 10.1080/15422119.2016.1140653] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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39
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Yang M, Zeng H, Wu X, Yang X, Zhou W, Zhang S, Lu R, Li J, Gao H. Magnetic zinc oxide nanoflower-assisted ionic liquid-based nanofluid dispersive liquid–liquid microextraction for the rapid determination of acaricides in tea infusions. RSC Adv 2016. [DOI: 10.1039/c6ra22353b] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An ionic liquid based nanofluid with magnetic zinc oxide as a nanoparticle additive was used for the quick determination of acaricides.
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Affiliation(s)
- Miyi Yang
- Department of Applied Chemistry
- China Agricultural University
- Beijing 100193
- China
| | - Haozhe Zeng
- Department of Applied Chemistry
- China Agricultural University
- Beijing 100193
- China
| | - Xiaoling Wu
- Department of Applied Chemistry
- China Agricultural University
- Beijing 100193
- China
| | - Xiaoling Yang
- Department of Applied Chemistry
- China Agricultural University
- Beijing 100193
- China
| | - Wenfeng Zhou
- Department of Applied Chemistry
- China Agricultural University
- Beijing 100193
- China
| | - Sanbing Zhang
- Department of Applied Chemistry
- China Agricultural University
- Beijing 100193
- China
| | - Runhua Lu
- Department of Applied Chemistry
- China Agricultural University
- Beijing 100193
- China
| | - Jing Li
- Department of Applied Chemistry
- China Agricultural University
- Beijing 100193
- China
| | - Haixiang Gao
- Department of Applied Chemistry
- China Agricultural University
- Beijing 100193
- China
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40
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Gao X, Guo H, Du Y, Gu C. Simultaneous Determination of Xylazine and 2,6-Xylidine in Blood and Urine by Auto Solid-Phase Extraction and Ultra High Performance Liquid Chromatography Coupled with Quadrupole-Time of Flight Mass Spectrometry. J Anal Toxicol 2015; 39:444-50. [DOI: 10.1093/jat/bkv040] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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41
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Pan R, Chen H, Wang C, Wang Q, Jiang Y, Liu X. Enantioselective Dissipation of Acephate and Its Metabolite, Methamidophos, during Tea Cultivation, Manufacturing, and Infusion. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:1300-1308. [PMID: 25582130 DOI: 10.1021/jf504916b] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The enantioselective dissipation of acephate and its metabolite, methamidophos, was investigated during tea cultivation, manufacturing, and infusion, using QuEChERS sample preparation technique and gas chromatography coupled with a BGB-176 chiral column. Results showed that (+)-acephate and (-)-acephate dissipated following first-order kinetics in fresh tea leaves with half-lives of 1.8 and 1.9 days, respectively. Acephate was degraded into a more toxic metabolite, methamidophos. Preferential dissipation and translocation of (+)-acephate may exist in tea shoots, and (-)-methamidophos was degraded more rapidly than (+)-methamidophos. During tea manufacturing, drying and spreading (or withering) played important roles in the dissipation of acephate enantiomers. The enantiometic fractions of acephate changed from 0.495-0.496 to 0.479-0.486 (P ≤ 0.0081), whereas those of methamidophos changed from 0.576-0.630 to 0.568-0.645 (P ≤ 0.0366 except for green tea manufacturing on day 1), from fresh tea leaves to made tea. In addition, high transfer rates (>80%) and significant enantioselectivity (P ≤ 0.0042) of both acephate and its metabolite occurred during tea brewing.
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Affiliation(s)
- Rong Pan
- Tea Research Institute, Chinese Academy of Agricultural Sciences , Hangzhou 310008, China
- Graduate School of Chinese Academy of Agricultural Sciences , Beijing 100081, China
| | - Hongping Chen
- Tea Research Institute, Chinese Academy of Agricultural Sciences , Hangzhou 310008, China
- Key Laboratory of Tea Quality and Safety & Risk Assessment, Ministry of Agriculture, Hangzhou 310008, China
| | - Chen Wang
- Tea Research Institute, Chinese Academy of Agricultural Sciences , Hangzhou 310008, China
- Key Laboratory of Tea Quality and Safety & Risk Assessment, Ministry of Agriculture, Hangzhou 310008, China
| | - Qinghua Wang
- Tea Research Institute, Chinese Academy of Agricultural Sciences , Hangzhou 310008, China
- Key Laboratory of Tea Quality and Safety & Risk Assessment, Ministry of Agriculture, Hangzhou 310008, China
| | - Ying Jiang
- Tea Research Institute, Chinese Academy of Agricultural Sciences , Hangzhou 310008, China
- Key Laboratory of Tea Quality and Safety & Risk Assessment, Ministry of Agriculture, Hangzhou 310008, China
| | - Xin Liu
- Tea Research Institute, Chinese Academy of Agricultural Sciences , Hangzhou 310008, China
- Key Laboratory of Tea Quality and Safety & Risk Assessment, Ministry of Agriculture, Hangzhou 310008, China
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42
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Wang L, Nie Y, Wang Y, Wang Z, Xiong B. Qualitative and quantitative determinations of pyridalyl and metabolites in excrement of two representative Lepidoptera pests. RSC Adv 2015. [DOI: 10.1039/c5ra21984a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Qualitative and quantitative SPE followed by HPLC-TOF/MS determination of pyridalyl and its potential metabolites in the excrement of Helicoverpa armigera (H. armigera) and Spodoptera exigua (S. exigua) was developed.
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Affiliation(s)
- Lingling Wang
- Key Laboratory of Pesticides & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Yuting Nie
- Key Laboratory of Pesticides & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Yujiao Wang
- Key Laboratory of Pesticides & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Zhenyu Wang
- Key Laboratory of Pesticides & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Bo Xiong
- Key Laboratory of Pesticides & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
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43
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Lin L, Lin H, Zhang M, Dong X, Yin X, Qu C, Ni J. Types, principle, and characteristics of tandem high-resolution mass spectrometry and its applications. RSC Adv 2015. [DOI: 10.1039/c5ra22856e] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
We review the principle and functional characteristics of different types or models for THRMS and provide a brief description of its applications in medical research, food safety, and environmental protection fields.
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Affiliation(s)
- Longfei Lin
- School of Chinese Materia Medica
- Beijing University of Chinese Medicine
- Beijing
- China
| | - Hongmei Lin
- School of Chinese Materia Medica
- Beijing University of Chinese Medicine
- Beijing
- China
| | - Miao Zhang
- School of Chinese Materia Medica
- Beijing University of Chinese Medicine
- Beijing
- China
| | - Xiaoxv Dong
- School of Chinese Materia Medica
- Beijing University of Chinese Medicine
- Beijing
- China
| | - Xingbin Yin
- School of Chinese Materia Medica
- Beijing University of Chinese Medicine
- Beijing
- China
| | - Changhai Qu
- Modern Research Center for TCM
- Beijing University of Chinese Medicine
- Beijing
- China
| | - Jian Ni
- School of Chinese Materia Medica
- Beijing University of Chinese Medicine
- Beijing
- China
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