1
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Exploring electrocatalytic proficiencies of CuO nanostructure for simultaneous determination of bentazone and mexacarbate pesticides. APPLIED NANOSCIENCE 2021. [DOI: 10.1007/s13204-021-01864-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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2
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Krichilsky E, Centrella M, Eitzer B, Danforth B, Poveda K, Grab H. Landscape Composition and Fungicide Exposure Influence Host-Pathogen Dynamics in a Solitary Bee. ENVIRONMENTAL ENTOMOLOGY 2021; 50:107-116. [PMID: 33247307 DOI: 10.1093/ee/nvaa138] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Indexed: 06/12/2023]
Abstract
Both ecosystem function and agricultural productivity depend on services provided by bees; these services are at risk from bee declines which have been linked to land use change, pesticide exposure, and pathogens. Although these stressors often co-occur in agroecosystems, a majority of pollinator health studies have focused on these factors in isolation, therefore limiting our ability to make informed policy and management decisions. Here, we investigate the combined impact of altered landscape composition and fungicide exposure on the prevalence of chalkbrood disease, caused by fungi in the genus Ascosphaera Olive and Spiltoir 1955 (Ascosphaeraceae: Onygenales), in the introduced solitary bee, Osmia cornifrons (Radoszkowski 1887) (Megachilidae: Hymenoptera). We used both field studies and laboratory assays to evaluate the potential for interactions between altered landscape composition, fungicide exposure, and Ascosphaera on O. cornifrons mortality. Chalkbrood incidence in larval O. cornifrons decreased with high open natural habitat cover, whereas Ascosphaera prevalence in adults decreased with high urban habitat cover. Conversely, high fungicide concentration and high forest cover increased chalkbrood incidence in larval O. cornifrons and decreased Ascosphaera incidence in adults. Our laboratory assay revealed an additive effect of fungicides and fungal pathogen exposure on the mortality of a common solitary bee. Additionally, we utilized phylogenetic methods and identified four species of Ascosphaera with O. cornifrons, both confirming previous reports and shedding light on new associates. Our findings highlight the impact of fungicides on bee health and underscore the importance of studying interactions among factors associated with bee decline.
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Affiliation(s)
| | - Mary Centrella
- Pesticide Management Education Program, Cornell University, Ithaca, NY
| | - Brian Eitzer
- The Connecticut Agricultural Experiment Station, Department of Analytical Chemistry, Johnson-Horsfall Laboratory, New Haven, CT
| | - Bryan Danforth
- Department of Entomology, Cornell University, Ithaca, NY
| | - Katja Poveda
- Department of Entomology, Cornell University, Ithaca, NY
| | - Heather Grab
- Department of Entomology, Cornell University, Ithaca, NY
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3
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Harischandra NR, Pallavi MS, Bheemanna M, PavanKumar K, Chandra Sekhara Reddy V, Udaykumar NR, Paramasivam M, Yadav S. Simultaneous determination of 79 pesticides in pigeonpea grains using GC-MS/MS and LC-MS/MS. Food Chem 2021; 347:128986. [PMID: 33515969 DOI: 10.1016/j.foodchem.2020.128986] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 12/09/2020] [Accepted: 12/09/2020] [Indexed: 11/18/2022]
Abstract
Pigeonpea grains are important sources of vegetarian proteins. It is the paramount importance to check the pesticide residues due to their frequent use during production. The LC-MS/MS and GC-MS/MS analytical method was developed and validated for the simultaneous determination of 79 pesticide residues in pigeonpea. The LOD and LOQ of the analytical method were in the range of 0.53 to 3.97 and 1.60 to 10.05 µg kg-1, respectively, with a correlation coefficient of more than 0.997. Average recoveries were in the range of 80 to 118.8%, with the RSD of less than 15%. Measurement uncertainty (Ux) for pesticides was in the range of 3.42 to 12.76 µg kg-1 evaluated at 50 µg kg-1. The method was applied to analyze the sample collected from the farmer's field. This method could be useful for routine analysis of selected pesticide residue for monitoring purposes.
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Affiliation(s)
- Naik R Harischandra
- Pesticide Residue and Food Quality Analysis Laboratory, University of Agricultural Sciences, Raichur 584 104, India.
| | - M S Pallavi
- Pesticide Residue and Food Quality Analysis Laboratory, University of Agricultural Sciences, Raichur 584 104, India
| | - M Bheemanna
- Pesticide Residue and Food Quality Analysis Laboratory, University of Agricultural Sciences, Raichur 584 104, India
| | - K PavanKumar
- Pesticide Residue and Food Quality Analysis Laboratory, University of Agricultural Sciences, Raichur 584 104, India
| | - V Chandra Sekhara Reddy
- Pesticide Residue and Food Quality Analysis Laboratory, University of Agricultural Sciences, Raichur 584 104, India
| | - Nidoni R Udaykumar
- Pesticide Residue and Food Quality Analysis Laboratory, University of Agricultural Sciences, Raichur 584 104, India
| | - M Paramasivam
- Pesticide Toxicology Laboratory, Tamil Nadu Agricultural University, Coimbatore 641003, India
| | - Satish Yadav
- National Institute of Plant Health Management, Hyderabad, India; Arbro Pharmaceuticals Pvt., Ltd., (Analytical Division), New Delhi, India
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4
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Kaufmann A. High-resolution mass spectrometry for bioanalytical applications: Is this the new gold standard? JOURNAL OF MASS SPECTROMETRY : JMS 2020; 55:e4533. [PMID: 32559824 DOI: 10.1002/jms.4533] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 11/19/2019] [Accepted: 04/18/2020] [Indexed: 06/11/2023]
Abstract
Liquid chromatography coupled to quadrupole-based tandem mass spectrometry (QqQ) is termed the "gold standard" for bioanalytical applications because of its unpreceded selectivity, sensitivity, and the ruggedness of the technology. More recently, however, high-resolution mass spectrometry (HRMS) has become increasingly popular for bioanalytical applications. Nonetheless, this technique is still viewed, either as a screening technology or as a research tool. Although HRMS is actively discussed during scientific conferences, it is yet to be widely utilised in routine laboratory settings and there remains a reluctance to use HRMS for quantitative measurements in regulated environments. This paper does not aim to comprehensively describe the potential of the latest HRMS technology, but rather, it focuses on what results can be obtained and outlines the author's experiences over a period of many years of the routine application of various forms of HRMS instrumentation. Fifteen years ago, some nine different QqQ methods were used in the author's laboratory to analyse a variety of different veterinary drug resides. Today, many more analytes are quantified by seven HRMS methods and just three QqQ methods remain in use for the analysis of a small set of compounds yet to be upgraded to HRMS analysis. This continual upgrading and migration of analytical methods were accompanied by regularly participating in laboratory proficiency tests (PTs). The PT reports (covering a range of analytes and analytical methods) were used to compare the accuracy of HRMS- versus QqQ-based measurements. In the second part of this paper, the particular strengths and limitations of HRMS for both method development and routine measurements are critically discussed. This also includes some anecdotal experiences encountered when replacing QqQ assays with HRMS methods.
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Affiliation(s)
- Anton Kaufmann
- Official Food Control Authority of the Canton of Zürich, Fehrenstrasse 15, Zürich, 8032, Switzerland
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5
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Sun H, Zhou L, Zhang X, Luo F, Yang M, Wang X, Lou Z, Chen Z. Residue dissipation and dietary exposure risk assessment of methoxyfenozide in cauliflower and tea via modified QuEChERS using UPLC/MS/MS. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2020; 100:2358-2363. [PMID: 31802504 DOI: 10.1002/jsfa.10179] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 11/06/2019] [Accepted: 12/05/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Methoxyfenozide possesses efficacy against a variety of lepidopteron pests, including the major pests in cauliflower and tea, so it is of great importance to generalize the practical use of methoxyfenozide in the field. RESULTS An efficient method was developed and validated in both vegetable matrix and extract-rich matrix (cauliflower and tea) using modified QuEChERS combined with UPLC/MS/MS analysis. The recoveries in cauliflower, made tea and tea shoots ranged from 94.5 to 108.0%, from 85.0 to 91.6% and from 77.3 to 82.0% respectively, with relative standard deviations (RSDs) below 17.3% in all cases. The field results showed that methoxyfenozide dissipated in cauliflower with half-life (t1/2 ) at 2.5-3.5 days and in tea with t1/2 at 1.2 days. Combining the above experimental data and statistical food intake values, the risk quotient (RQ) values were significantly lower than 1. CONCLUSION The quantification method of methoxyfenozide in cauliflower or tea has not been established until this study. The dissipation and dietary exposure risk assessment of methoxyfenozide in cauliflower and tea were investigated in the field. Methoxyfenozide dissipated rapidly in cauliflower despite different climates, and it dissipated faster in tea. The dietary risk of methoxyfenozide through cauliflower or tea was negligible to humans. This study not only provides guidance for the safe use of methoxyfenozide but also serves as a reference for the establishment of maximum residue limits (MRLs) in China. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Hezhi Sun
- 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
| | - Fengjian Luo
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
| | - Mei Yang
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
| | - Xinru Wang
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
| | - Zhengyun Lou
- 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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6
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Acharya V, Mal S, Kilaru JP, Montgomery MG, Deshpande SH, Sonawane RP, Manjunath BN, Pal S. Synthesis of Carbamates from Alkyl Bromides and Secondary Amines Using Silver Carbonate. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901649] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Vanitha Acharya
- Santa Monica Works, Corlim, Ilhas; Syngenta Biosciences Pvt. Ltd.; 403110 Goa India
- Department of Chemistry; Mangalore University, Mangalagangothri; 576119 Karnataka India
| | - Sanjib Mal
- Santa Monica Works, Corlim, Ilhas; Syngenta Biosciences Pvt. Ltd.; 403110 Goa India
| | - Jagadeesh P. Kilaru
- Santa Monica Works, Corlim, Ilhas; Syngenta Biosciences Pvt. Ltd.; 403110 Goa India
| | - Mark G. Montgomery
- Jealott's Hill International Research Centre; Syngenta; 42 6EY Bracknell Berkshire United Kingdom
| | | | - Ravindra P. Sonawane
- Santa Monica Works, Corlim, Ilhas; Syngenta Biosciences Pvt. Ltd.; 403110 Goa India
| | - Bhanu N. Manjunath
- Santa Monica Works, Corlim, Ilhas; Syngenta Biosciences Pvt. Ltd.; 403110 Goa India
| | - Sitaram Pal
- Santa Monica Works, Corlim, Ilhas; Syngenta Biosciences Pvt. Ltd.; 403110 Goa India
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7
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Tsagkaris A, Nelis J, Ross G, Jafari S, Guercetti J, Kopper K, Zhao Y, Rafferty K, Salvador J, Migliorelli D, Salentijn G, Campbell K, Marco M, Elliot C, Nielen M, Pulkrabova J, Hajslova J. Critical assessment of recent trends related to screening and confirmatory analytical methods for selected food contaminants and allergens. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.115688] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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8
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Jiang H, Zhang H, Xiong W, Qi C, Wu W, Wang L, Cheng R. Iridium-Catalyzed Three-component Coupling Reaction of Carbon Dioxide, Amines, and Sulfoxonium Ylides. Org Lett 2019; 21:1125-1129. [DOI: 10.1021/acs.orglett.9b00072] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Hao Zhang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Wenfang Xiong
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Chaorong Qi
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Lu Wang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Ruixiang Cheng
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
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9
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Wang Q, Xiong W, Deng X, Zhou X, Qi C, Hu J. Silver‐Nanowire‐Catalyzed Three‐Component Coupling of Carbon Dioxide, Amines and Propargylic Alcohols for the Synthesis of β‐Oxopropyl Carbamates. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800610] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Qiong Wang
- School of Chemistry and Chemical EngineeringSouth China University of Technology Guangzhou 510641 P. R. China
| | - Wenfang Xiong
- School of Chemistry and Chemical EngineeringSouth China University of Technology Guangzhou 510641 P. R. China
| | - Xiulong Deng
- School of Chemistry and Chemical EngineeringSouth China University of Technology Guangzhou 510641 P. R. China
| | - Xuan Zhou
- School of Chemistry and Chemical EngineeringSouth China University of Technology Guangzhou 510641 P. R. China
| | - Chaorong Qi
- School of Chemistry and Chemical EngineeringSouth China University of Technology Guangzhou 510641 P. R. China
- State Key Lab of Luminescent Materials and DevicesSouth China University of Technology Guangzhou 510641 P. R. China
| | - Jianqiang Hu
- School of Chemistry and Chemical EngineeringSouth China University of Technology Guangzhou 510641 P. R. China
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10
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Wang F, Yang G, Xu J, Yu W, Shi L, Zeng S, Chen L, Hu D, Zhang K. Simultaneous determination and method validation of clethodim and its metabolites clethodim sulfoxide and clethodim sulfone in tobacco by LC-MS/MS. Biomed Chromatogr 2018; 32. [PMID: 29165829 DOI: 10.1002/bmc.4148] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 11/01/2017] [Accepted: 11/10/2017] [Indexed: 11/05/2022]
Abstract
A simple method was developed and validated for the simultaneous determination of clethodim, clethodim sulfoxide, and clethodim sulfone in soil and tobacco by liquid chromatography with tandem mass spectrometry. The three target compounds were extracted from tobacco and soil with acetonitrile, and the extracts were purified using octadecyl silane. The proposed method showed satisfactory linearity (R2 ≥ 0.9973) for the target compounds. The limits of detection and quantitation of the three analytes in all matrices were 0.024-0.06 and 0.08-0.2 mg/kg, respectively. The recovery was tested in blank soil and tobacco leaf samples and calculated to be 74.8-104.4% with relative standard deviations of 1.9-12.1%. The developed method was successfully applied to the analysis of residues of clethodim, clethodim sulfoxide and clethodim sulfone in real soil and tobacco samples. The results indicated that the developed method can meet the requirements for the analysis of trace amounts of all three analytes in soil and tobacco.
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Affiliation(s)
- Fei Wang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Guoqiang Yang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Jin Xu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Weiwei Yu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Lihong Shi
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Song Zeng
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Lingzhu Chen
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Deyu Hu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Kankan Zhang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
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11
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Multi-class analysis for simultaneous determination of pesticides, mycotoxins, process-induced toxicants and packaging contaminants in tea. Food Chem 2018; 242:113-121. [DOI: 10.1016/j.foodchem.2017.08.108] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 08/30/2017] [Accepted: 08/30/2017] [Indexed: 12/15/2022]
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12
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Peng Y, Liu J, Qi C, Yuan G, Li J, Jiang H. nBu4NI-catalyzed oxidative cross-coupling of carbon dioxide, amines, and aryl ketones: access to O-β-oxoalkyl carbamates. Chem Commun (Camb) 2017; 53:2665-2668. [DOI: 10.1039/c6cc09762f] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The first nBu4NI-catalyzed oxidative cross-coupling reaction of carbon dioxide, amines and arylketones leading to O-β-oxoalkyl carbamates is reported.
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Affiliation(s)
- Youbin Peng
- School of Chemistry and Chemical Engineering
- State Key Lab of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Juan Liu
- Key Lab of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Chaorong Qi
- School of Chemistry and Chemical Engineering
- State Key Lab of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Gaoqing Yuan
- Key Lab of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Jiawei Li
- Key Lab of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Huanfeng Jiang
- Key Lab of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
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13
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Qin Y, Huang B, Zhang J, Han Y, Li Y, Zou N, Yang J, Pan C. Analytical method for 44 pesticide residues in spinach using multi-plug-filtration cleanup based on multiwalled carbon nanotubes with liquid chromatography and tandem mass spectrometry detection. J Sep Sci 2016; 39:1757-65. [DOI: 10.1002/jssc.201501401] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Revised: 03/02/2016] [Accepted: 03/02/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Yuhong Qin
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, College of Science; China Agricultural University; Beijing China
| | - Baoyong Huang
- Beijing Station of Agro-Environmental Monitoring; Test and Supervision Center of Agro-Environmental Quality; MOA Beijing China
| | - Jingru Zhang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, College of Science; China Agricultural University; Beijing China
| | - Yongtao Han
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, College of Science; China Agricultural University; Beijing China
| | - Yanjie Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, College of Science; China Agricultural University; Beijing China
| | - Nan Zou
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, College of Science; China Agricultural University; Beijing China
| | - Jianguo Yang
- Plant Protection Station of Beijing; Beijing China
| | - Canping Pan
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, College of Science; China Agricultural University; Beijing China
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14
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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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15
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Tuzimski T, Rejczak T. Application of HPLC–DAD after SPE/QuEChERS with ZrO 2 -based sorbent in d-SPE clean-up step for pesticide analysis in edible oils. Food Chem 2016. [DOI: 10.1016/j.foodchem.2015.05.072] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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16
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Dong M, Han W, Ediage EN, Fan L, Tang H, Wang W, Han L, Zhao Z, Song W, Han Z. Dissipation kinetics and degradation mechanism of amicarbazone in soil revealed by a reliable LC-MS/MS method. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:17518-17526. [PMID: 26139399 DOI: 10.1007/s11356-015-4899-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 06/15/2015] [Indexed: 06/04/2023]
Abstract
A sensitive and reliable analytical method was developed for simultaneous determination of amicarbazone (AMZ) and its two major metabolites including desamino amicarbazone (DA) and isopropyl-2-hydroxy-DA-amicarbazone (Ipr-2-OH-DA-AMZ) in soil for the first time. Targeted analytes were extracted and purified using a modified quick, easy, cheap, effective, rugged, and safe (QuEChERS) procedure, and then analyzed by liquid chromatography-tandem mass spectrometry (LC-MS/MS) with a total run time of 9 min. The established approach was extensively validated by determining the linearity (R (2) ≥ 0.99), recovery (84-96 ), sensitivity (limits of quantification at 5-10 μg kg(-1)), and precision (RSDs ≤12 %). Based on the methodological advances, the subsequent dissipation kinetics and degradation mechanism of amicarbazone in soil were thoroughly investigated in an illumination incubator. As revealed, AMZ was easily degraded with the half-lives of 13.9-19.7 days in soil. Field trial results of AMZ (40 g a.i. ha(-1)) in Shanghai showed that the residues of AMZ and its metabolite Ipr-2-OH-DA-AMZ decreased from 0.505 mg kg(-1) (day 50) to 0.038 mg kg(-1) (day 365) and from 0.099 mg kg(-1) (day 50) to 0.028 mg kg(-1) (day 365), respectively, while the content of DA increased from 0.097 mg kg(-1) (day 50) to 0.245 mg kg(-1) (day 365). This study provided valuable data to understand the toxicity of AMZ and substantially promote its safe application to protect environment and human health.
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Affiliation(s)
- Maofeng Dong
- Institute for Agri-food Standards & Testing Technology, Shanghai Academy of Agricultural Sciences, 1000 Jinqi Road, Shanghai, 201403, People's Republic of China
| | - Wei Han
- Institute for Agri-food Standards & Testing Technology, Shanghai Academy of Agricultural Sciences, 1000 Jinqi Road, Shanghai, 201403, People's Republic of China
| | - Emmanuel Njumbe Ediage
- Laboratory of Food Analysis, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, 9000, Ghent, Belgium
| | - Liangxiu Fan
- Institute for Agri-food Standards & Testing Technology, Shanghai Academy of Agricultural Sciences, 1000 Jinqi Road, Shanghai, 201403, People's Republic of China
| | - Hongxia Tang
- Institute for Agri-food Standards & Testing Technology, Shanghai Academy of Agricultural Sciences, 1000 Jinqi Road, Shanghai, 201403, People's Republic of China
| | - Weimin Wang
- Institute for Agri-food Standards & Testing Technology, Shanghai Academy of Agricultural Sciences, 1000 Jinqi Road, Shanghai, 201403, People's Republic of China
| | - Lijun Han
- Department of College of Science, China Agricultural University, Beijing, 100193, People's Republic of China
| | - Zhihui Zhao
- Institute for Agri-food Standards & Testing Technology, Shanghai Academy of Agricultural Sciences, 1000 Jinqi Road, Shanghai, 201403, People's Republic of China
| | - Weiguo Song
- Institute for Agri-food Standards & Testing Technology, Shanghai Academy of Agricultural Sciences, 1000 Jinqi Road, Shanghai, 201403, People's Republic of China.
| | - Zheng Han
- Institute for Agri-food Standards & Testing Technology, Shanghai Academy of Agricultural Sciences, 1000 Jinqi Road, Shanghai, 201403, People's Republic of China.
- Laboratory of Food Analysis, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, 9000, Ghent, Belgium.
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Xiong W, Qi C, Peng Y, Guo T, Zhang M, Jiang H. Base-Promoted Coupling of Carbon Dioxide, Amines, and Diaryliodonium Salts: A Phosgene- and Metal-Free Route toO-Aryl Carbamates. Chemistry 2015; 21:14314-8. [DOI: 10.1002/chem.201502689] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2015] [Indexed: 12/11/2022]
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18
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Han JL, Fang P, Xu XM, Li-Zheng XJ, Shen HT, Ren YP. Study of the pesticides distribution in peel, pulp and paper bag and the safety of pear bagging. Food Control 2015. [DOI: 10.1016/j.foodcont.2015.02.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Senyuva HZ, Gökmen V, Sarikaya EA. Future perspectives in Orbitrap™-high-resolution mass spectrometry in food analysis: a review. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2015; 32:1568-606. [DOI: 10.1080/19440049.2015.1057240] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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20
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Mesnage R, Defarge N, Rocque LM, Spiroux de Vendômois J, Séralini GE. Laboratory Rodent Diets Contain Toxic Levels of Environmental Contaminants: Implications for Regulatory Tests. PLoS One 2015; 10:e0128429. [PMID: 26133768 PMCID: PMC4489719 DOI: 10.1371/journal.pone.0128429] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Accepted: 04/27/2015] [Indexed: 12/16/2022] Open
Abstract
The quality of diets in rodent feeding trials is crucial. We describe the contamination with environmental pollutants of 13 laboratory rodent diets from 5 continents. Measurements were performed using accredited methodologies. All diets were contaminated with pesticides (1-6 out of 262 measured), heavy metals (2-3 out of 4, mostly lead and cadmium), PCDD/Fs (1-13 out of 17) and PCBs (5-15 out of 18). Out of 22 GMOs tested for, Roundup-tolerant GMOs were the most frequently detected, constituting up to 48% of the diet. The main pesticide detected was Roundup, with residues of glyphosate and AMPA in 9 of the 13 diets, up to 370 ppb. The levels correlated with the amount of Roundup-tolerant GMOs. Toxic effects of these pollutants on liver, neurodevelopment, and reproduction are documented. The sum of the hazard quotients of the pollutants in the diets (an estimator of risk with a threshold of 1) varied from 15.8 to 40.5. Thus the chronic consumption of these diets can be considered at risk. Efforts toward safer diets will improve the reliability of toxicity tests in biomedical research and regulatory toxicology.
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Affiliation(s)
- Robin Mesnage
- University of Caen, Institute of Biology, EA2608 and Network on Risks, Quality and Sustainable Environment MRSH, Esplanade de la Paix, 14032 Caen Cedex, France
- CRIIGEN, 40 rue Monceau, 75008, Paris, France
| | - Nicolas Defarge
- University of Caen, Institute of Biology, EA2608 and Network on Risks, Quality and Sustainable Environment MRSH, Esplanade de la Paix, 14032 Caen Cedex, France
- CRIIGEN, 40 rue Monceau, 75008, Paris, France
| | | | | | - Gilles-Eric Séralini
- University of Caen, Institute of Biology, EA2608 and Network on Risks, Quality and Sustainable Environment MRSH, Esplanade de la Paix, 14032 Caen Cedex, France
- CRIIGEN, 40 rue Monceau, 75008, Paris, France
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Dong M, Nie D, Tang H, Rao Q, Qu M, Wang W, Han L, Song W, Han Z. Analysis of amicarbazone and its two metabolites in grains and soybeans by liquid chromatography with tandem mass spectrometry. J Sep Sci 2015; 38:2245-52. [DOI: 10.1002/jssc.201500265] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2015] [Revised: 04/12/2015] [Accepted: 04/13/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Maofeng Dong
- Institute for Agri-food Standards and Testing Technology; Shanghai Academy of Agricultural Sciences; Shanghai P. R. China
| | - Dongxia Nie
- Institute for Agri-food Standards and Testing Technology; Shanghai Academy of Agricultural Sciences; Shanghai P. R. China
| | - Hongxia Tang
- Institute for Agri-food Standards and Testing Technology; Shanghai Academy of Agricultural Sciences; Shanghai P. R. China
| | - Qinxiong Rao
- Institute for Agri-food Standards and Testing Technology; Shanghai Academy of Agricultural Sciences; Shanghai P. R. China
| | - Mingqing Qu
- Institute for Agri-food Standards and Testing Technology; Shanghai Academy of Agricultural Sciences; Shanghai P. R. China
| | - Weimin Wang
- Institute for Agri-food Standards and Testing Technology; Shanghai Academy of Agricultural Sciences; Shanghai P. R. China
| | - Lijun Han
- Department of College of Science; China Agricultural University; Beijing P. R. China
| | - Weiguo Song
- Institute for Agri-food Standards and Testing Technology; Shanghai Academy of Agricultural Sciences; Shanghai P. R. China
| | - Zheng Han
- Institute for Agri-food Standards and Testing Technology; Shanghai Academy of Agricultural Sciences; Shanghai P. R. China
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