1
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Zhang Z, Zhang J, Li M, Jin X, Yao L, Wang W, Liu J, Li Z. Combination of switchable hydrophilic solvent liquid-liquid microextraction with QuEChERS for trace determination of triazole fungicide pesticides by GC-MS. ANAL SCI 2023:10.1007/s44211-023-00324-6. [PMID: 36947336 DOI: 10.1007/s44211-023-00324-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Accepted: 03/09/2023] [Indexed: 03/23/2023]
Abstract
This work first proposed a novel green and efficient method based on Quick, Easy, Cheap, Efficient, Rugged, and Safe pretreatment (QuEChERS) combined with switchable hydrophilic solvent homogeneous liquid-liquid microextraction (SHS-HLLME) for trace determination of triazole fungicides (TFs) in agricultural products such as vegetables and fruits by gas chromatography-mass spectrometry (GC-MS). N,N-Dimethyl benzylamine was used for the synthesis of SHS. Box-Behnken design was applied for the optimization of extraction conditions and a mathematical model was obtained. Ultimately, 0.50 mL SHS, 1.0 mL 10 mol L-1 sodium hydroxide, and 45 s ultrasonic time were determined as optimal conditions for the SHS-HLLME method. The limit of detection and limit of quantification determined using the optimal method (SHS-HLLME/GC-MS) were 0.13-0.27 ng mL-1 and 0.43-0.90 ng mL-1, respectively. In addition, the SHS-HLLME method under optimal conditions was combined with the traditional QuEChERS method to realize the advancement of the SHS-HLLME method from simple to complex matrix analysis, and the QuEChERS-SHS-HLLME method was successfully applied to the analysis of TFs in cucumbers, tomatoes, watermelon and grapes in agricultural products. Matrix-matched calibration standards were used to improve the accuracy of TFs in spiked cucumber samples to obtain recovery results close to 100%. It was shown that the new method is green and rapid, enabling fast and inexpensive sample pretreatment with up to 100-fold enrichment factor and low detection limit compared with the original QuEChERS method.
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Affiliation(s)
- Zhihui Zhang
- College of Chemical Engineering, Zhejiang University of Technology, No. 18, Chaowang Road, Xiacheng District, Hangzhou, 310014, Zhejiang, People's Republic of China
| | - Jingyu Zhang
- College of Chemical Engineering, Zhejiang University of Technology, No. 18, Chaowang Road, Xiacheng District, Hangzhou, 310014, Zhejiang, People's Republic of China
| | - Mufei Li
- Zhejiang Key Laboratory of Ecological and Environmental Monitoring, Forewarning and Quality Control, Zhejiang Ecological and Environmental Monitoring Center, Hangzhou, 310012, China
| | - Xiangzi Jin
- College of Chemical Engineering, Zhejiang University of Technology, No. 18, Chaowang Road, Xiacheng District, Hangzhou, 310014, Zhejiang, People's Republic of China
| | - Liping Yao
- College of Chemical Engineering, Zhejiang University of Technology, No. 18, Chaowang Road, Xiacheng District, Hangzhou, 310014, Zhejiang, People's Republic of China
| | - Wenyuan Wang
- College of Chemical Engineering, Zhejiang University of Technology, No. 18, Chaowang Road, Xiacheng District, Hangzhou, 310014, Zhejiang, People's Republic of China
| | - Jinsong Liu
- Zhejiang Key Laboratory of Ecological and Environmental Monitoring, Forewarning and Quality Control, Zhejiang Ecological and Environmental Monitoring Center, Hangzhou, 310012, China.
| | - Zuguang Li
- College of Chemical Engineering, Zhejiang University of Technology, No. 18, Chaowang Road, Xiacheng District, Hangzhou, 310014, Zhejiang, People's Republic of China.
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2
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Zheng K, Lin R, Liu X, Wu X, Chen R, Yang M. Multiresidue Pesticide Analysis in Tea Using GC-MS/MS to Determine 12 Pesticide Residues (GB 2763-2021). Molecules 2022; 27:molecules27238419. [PMID: 36500512 PMCID: PMC9735578 DOI: 10.3390/molecules27238419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 11/21/2022] [Accepted: 11/28/2022] [Indexed: 12/03/2022] Open
Abstract
Pesticides are widely used on tea plants, and pesticide residues are of significant concern to consumers. The National Food Safety Standard Maximum Residue Limits for Pesticides in Food (GB 2763-2021) was recently amended. However, detection methods for pesticides newly added to the list of residues in beverages have not yet been established. For that reason, this study developed a solid-phase extraction (SPE) and gas chromatography-tandem mass spectrometry (GC-MS/MS) method for determining the residues of 12 pesticides, including four newly added, in black and green tea. Sample preparation processes (sample extraction, SPE clean-up, elution solvent, and elution volume) were optimized to monitor these residues reliably. Multiple reaction monitoring (MRM) was used for GC-MS/MS electron impact (EI) mode determination. Finally, satisfactory recoveries (70.7-113.0% for green tea and 72.0-99.1% for black tea) were achieved at three concentrations (10 μg/kg, 20 μg/kg, and 100 μg/kg). The LOQs were 0.04-8.69 μg/kg, and the LODs were 0.01-3.14 μg/kg. This study provides a reliable and sensitive workflow for determining 12 pesticide residues in tea, filling a gap in the newly revised National Standards.
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Affiliation(s)
- Kunming Zheng
- Fujian CCIC-Fairreach Food Safety Testing Co., Ltd., Fuzhou 350001, China
| | - Rongmei Lin
- College of Plant Protection, Henan Agricultural University, Zhengzhou 450002, China
| | - Xuezhi Liu
- Chinese Academy of Inspection and Quarantine Comprehensive Test Center, Beijing 100123, China
| | - Xiaoping Wu
- Fujian CCIC-Fairreach Food Safety Testing Co., Ltd., Fuzhou 350001, China
| | - Rongfeng Chen
- National Center for Occupational Safety and Health, NHC, Beijing 102308, China
- Correspondence: (R.C.); (M.Y.)
| | - Mengquan Yang
- College of Tobacco Science, Henan Agricultural University, Zhengzhou 450002, China
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-8654, Japan
- Correspondence: (R.C.); (M.Y.)
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3
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Subramani T, Ganapathyswamy H, Sampathrajan V, Sundararajan A, Marimuthu M. Effect of processing on selected pesticide residues in cottonseed (
Gossypium
spp.). J Food Saf 2022. [DOI: 10.1111/jfs.13002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Thirukkumar Subramani
- Department of Food Science Amrita School of Agricultural Sciences, Amrita Vishwa vidyapeetham Coimbatore Tamil Nadu India
| | - Hemalatha Ganapathyswamy
- Department of Food Science and Nutrition, Community Science College and Research Institute Tamil Nadu Agricultural University Madurai Tamil Nadu India
| | - Vellaikumar Sampathrajan
- Center of Innovation, Department of Biotechnology, Agricultural College and Research Institute Tamil Nadu Agricultural University Madurai Tamil Nadu India
| | - Amutha Sundararajan
- Department of Food Science and Nutrition, Community Science College and Research Institute Tamil Nadu Agricultural University Madurai Tamil Nadu India
| | - Murugan Marimuthu
- Department of Agricultural Entomology Tamil Nadu Agricultural University Coimbatore Tamil Nadu India
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4
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Determination of Pesticide Residues in Rooibos (Aspalathus linearis) Teas in South Africa. Toxicol Rep 2022; 9:852-857. [DOI: 10.1016/j.toxrep.2022.04.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 03/31/2022] [Accepted: 04/01/2022] [Indexed: 11/19/2022] Open
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5
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Song L, Zeng W, Li A, Pan C, Pan L. Automated multi-plug filtration cleanup method for analysis of 48 pesticide residues in green tea using liquid chromatography-tandem mass spectrometry. Food Control 2022. [DOI: 10.1016/j.foodcont.2021.108436] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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6
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Pitoi MM, Harmoko H, Tresnawati A, Pardede HF, Ariyani M, Ridwan YS, Yusiasih R. Pesticide residues in fruits and vegetables in Indonesia: findings of five-year proficiency testing. ACCREDITATION AND QUALITY ASSURANCE : JOURNAL FOR QUALITY, COMPARABILITY AND RELIABILITY IN CHEMICAL MEASUREMENT 2022; 27:181-193. [PMID: 35572789 PMCID: PMC9087159 DOI: 10.1007/s00769-022-01502-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 03/02/2022] [Indexed: 05/05/2023]
Abstract
The first proficiency testing of pesticides in fruits and vegetables in Indonesia is reported. This report covers the findings of five-year proficiency testings. Every year, from 2016 to 2020, 18-25 laboratories join the proficiency testings and analyze 5-11 pesticides in tomato, orange, lettuce, brown rice, strawberry respectively. The number of laboratories participating in the proficiency testings tends to increase, although only 38 % of the laboratories are able to report all pesticides. More than 72 % of participants use QuEChERS or its modifications for sample preparation, all participants use gas chromatography or liquid chromatography for separation, at least 20 % of participants still rely on detectors other than mass spectrophotometer for detection, and 20 %-60 % of participants use matrix-matched calibration for quantification. The performance of laboratories is evaluated as z-score with an average of 90.8 % achieves satisfactory results while 3.3 % and 5.9 % achieve questionable and unsatisfactory results correspondingly. Overall, the performance of laboratory participants during proficiency testings is good. However, improvement is still needed, especially for the number of target pesticides for multi-residue pesticide analysis. Moreover, unsatisfactory z-scores are likely to be resulted from laboratories which use conventional solvent extraction, use detectors other than mass spectrometers, and are not accredited.
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Affiliation(s)
- Mariska M. Pitoi
- Research Center for Environmental and Clean Technology, National Research and Innovation Agency, Bandung, Indonesia
| | - Harmoko Harmoko
- Directorate of Standardization and Quality Control, Ministry of Trade Republic of Indonesia, Jakarta, Indonesia
| | - Astika Tresnawati
- Directorate of Standardization and Quality Control, Ministry of Trade Republic of Indonesia, Jakarta, Indonesia
| | - Hilman F. Pardede
- Research Center for Data and Information Sciences, National Research and Innovation Agency, Bandung, Indonesia
| | - Miranti Ariyani
- Research Center for Environmental and Clean Technology, National Research and Innovation Agency, Bandung, Indonesia
| | - Yohanes S. Ridwan
- Research Center for Environmental and Clean Technology, National Research and Innovation Agency, Bandung, Indonesia
| | - Retno Yusiasih
- Research Center for Environmental and Clean Technology, National Research and Innovation Agency, Bandung, Indonesia
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7
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Huang H, Li Z, He Y, Huang L, Xu X, Pan C, Guo F, Yang H, Tang S. Nontarget and high-throughput screening of pesticides and metabolites residues in tea using ultra-high-performance liquid chromatography and quadrupole-orbitrap high-resolution mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2021; 1179:122847. [PMID: 34418760 DOI: 10.1016/j.jchromb.2021.122847] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 06/22/2021] [Accepted: 06/23/2021] [Indexed: 10/20/2022]
Abstract
A Sin-QuEChERS, coupled to UHPLC Q-Exactive Orbitrap MS, was used for nontargeted high-throughput rapid screening and quantitative analysis of residual pesticides and metabolites in green teas. The sample was extracted with 0.1% formic acid in acetonitrile with shaking, salted out and centrifuged, and purified with Sin-QuEChERS Nano solid phase extraction column; with Full MS/ddMS2 as the data collection mode, the database containing 384 pesticides combined with Trace Finder 3.0 software, In the absence of standard products, rapid screening and confirmation of potential pesticide residues in tea samples with accurate mass, isotope abundance ratio, secondary fragment ions, etc. 20 pesticides were used as quality controls to verify the screening method, and the linearity of these pesticides was between 1 and 200 μg/L, and the correlation coefficients were all greater than 0.9922. Moreover, the LOQ was between 0.002 and 0.01 mg/kg. The average recoveries of spiked tea samples were 74%-111%. Efficiency and reliability of this method were investigated by the analysis of 38 Chinese green tea samples. 18 potential residual pesticides were detected by non-targeted screening. The researchers then conducted a quantitative analysis of the 18 potential residual pesticides.
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Affiliation(s)
- Hetian Huang
- School of Public Health, The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang 550025, China; Guizhou Academy of Testing and Analysis, Guiyang 550014, China; The Peoples Hospital of Liupanshui City, Liupanshui 553001, China
| | - Zhanbin Li
- Guizhou Academy of Testing and Analysis, Guiyang 550014, China
| | - Yu He
- Guizhou Academy of Testing and Analysis, Guiyang 550014, China
| | - Lian Huang
- School of Public Health, The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang 550025, China
| | - Xiaoli Xu
- Guizhou Academy of Testing and Analysis, Guiyang 550014, China
| | - Canping Pan
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100094, China
| | - Feng Guo
- National Research Center for Geoanalysis, Key Laboratory of Eco-Geochemistry, Ministry of Natural Resources, Beijing 100037, China.
| | - Hongbo Yang
- School of Public Health, The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang 550025, China; Guizhou Academy of Testing and Analysis, Guiyang 550014, China.
| | - Shi Tang
- The Peoples Hospital of Liupanshui City, Liupanshui 553001, China
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8
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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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9
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Determination of Three Typical Metabolites of Pyrethroid Pesticides in Tea Using a Modified QuEChERS Sample Preparation by Ultra-High Performance Liquid Chromatography Tandem Mass Spectrometry. Foods 2021; 10:foods10010189. [PMID: 33477680 PMCID: PMC7831930 DOI: 10.3390/foods10010189] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 01/08/2021] [Accepted: 01/13/2021] [Indexed: 01/01/2023] Open
Abstract
Pyrethroid pesticides are widely used on tea plants, and their residues of high frequency and concentration have received great attention. Until recently, the residues of typical metabolites of pyrethroid pesticides in tea were unknown. Herein, a modified “quick, easy, cheap, effective, rugged and safe” (QuEChERS) method for the determination of three typical metabolites of pyrethroid pesticides in tea, using ultra performance liquid chromatography tandem mass spectrometry, was developed. The mixture of florisil, octadecylsilane, and graphite carbon black was employed as modified QuEChERS adsorbents. A Kinetex C18 column achieved good separation and chromatographic peaks of all analytes. The calibration curves of 3-phenoxybenzoic acid (3-PBA) and 4-fluoro-3-phenoxybenzoic acid (4-F-3-PBA) were linear in the range of 0.1–50 ng mL−1 (determination coefficient R2 higher than 0.999), and that of cis-3-(2-chloro-3,3,3-trifluoroprop-1-en-1-yl)-2,2-dimethylcyclopropanecarboxylic acid (TFA) was in the range of 1–100 ng mL−1 (R2 higher than 0.998). The method was validated and recoveries ranged from 83.0% to 117.3%. Intra- and inter-day precisions were lower than or equal to 13.2%. The limits of quantification of 3-PBA, 4-F-3-PBA, and TFA were 5, 2, and 10 μg kg−1, respectively. A total of 22 tea samples were monitored using this method, and 3-PBA and TFA were found in two green tea samples.
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10
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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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11
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Wang C, Chen H, Zhu L, Liu X, Lu C. Accurate, sensitive and rapid determination of perchlorate in tea by hydrophilic interaction chromatography-tandem mass spectrometry. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2020; 12:3592-3599. [PMID: 32701081 DOI: 10.1039/d0ay00811g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Perchlorate is an environmental contaminant interrupting thyroid hormone production, and perchlorate in tea has raised wide concern recently. In this study, an accurate method was developed for the determination of perchlorate in tea using hydrophilic interaction chromatography-tandem mass spectrometry and a simplified QuEChERS procedure. The method utilized a zwitterion HILIC column for separation, and the optimal gradient eluents consisted of acetonitrile and aqueous solution with 0.1% formic acid and 20 mmol L-1 ammonium formate. Calibration curves were fitted by the quadratic model with 1/x weight instead of the linear model. As perchlorate was only partially extractable when using acetonitrile or methanol as the extraction solvent, acetonitrile/water (1 : 1, v/v) was chosen to extract perchlorate from tea samples. Graphitized carbon black was used as the dispersive solid phase extraction sorbent to clean up tea extracts. The method exhibited satisfactory accuracy with recoveries of 81.4-100.9% and relative standard deviations of 1.3-14.5% for green and black teas. The limit of quantitation was 0.005 mg kg-1, while the limits of detection were 0.0011 mg kg-1 for green tea and 0.0013 mg kg-1 for black tea, indicating an excellent sensitivity of this method. A 100% positive rate of perchlorate was found in 100 real tea samples, and the concentrations ranged from 0.0030 mg kg-1 to 0.78 mg kg-1. This accurate, sensitive and rapid method would be suitable for monitoring, risk assessment and source identification of perchlorate in tea.
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Affiliation(s)
- Chen Wang
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, 310008, China.
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12
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Turan NB, Maltepe E, Chormey DS, Bakırdere S. Determination of fenazaquin in water and tomato matrices by GC-MS after a combined QuEChERS and switchable solvent liquid phase microextraction. ENVIRONMENTAL MONITORING AND ASSESSMENT 2020; 192:72. [PMID: 31897765 DOI: 10.1007/s10661-019-8061-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 12/25/2019] [Indexed: 06/10/2023]
Abstract
This study presents the use of Quick Easy Cheap Efficient Rugged and Safe (QuEChERS) as an effective sample cleaning procedure and switchable solvent liquid phase microextraction (SS-LPME) as a preconcentration tool for the determination of fenazaquin by gas chromatography mass spectrometry (GC-MS) at ultratrace levels. After a thorough optimization process, 0.50 mL of switchable solvent, 1.5 mL of 1.0 M sodium hydroxide, and 15 s of vortexing were determined as optimum conditions of the SS-LPME method. The limit of detection (LOD) and limit of quantitation (LOQ) determined using the optimum method (SS-LPME/GC-MS) were 0.05 and 0.18 ng/mL, respectively. Compared with direct GC-MS determination of fenazaquin, the optimum method yielded about 800-fold enhancement in detection power of GC-MS. The method was applied to lake, irrigation canal, well, and wastewater samples. In order to test the method's applicability on fresh tomato samples, a QuEChERS method was used before applying the SS-LPME method. Matrix-matched calibration standards were used to enhance the accuracy of fenazaquin quantification in spiked tomato samples to obtain recovery results close to 100%.
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Affiliation(s)
- Nouha Bakaraki Turan
- Environmental Engineering Department, Civil Engineering Faculty, Yildiz Technical University, Davutpaşa, Esenler, 34220, İstanbul, Turkey
| | - Esra Maltepe
- Department of Chemistry, Faculty of Art and Science, Yildiz Technical University, Davutpaşa, Esenler, 34220, İstanbul, Turkey
| | - Dotse Selali Chormey
- Department of Chemistry, Faculty of Art and Science, Yildiz Technical University, Davutpaşa, Esenler, 34220, İstanbul, Turkey
| | - Sezgin Bakırdere
- Department of Chemistry, Faculty of Art and Science, Yildiz Technical University, Davutpaşa, Esenler, 34220, İstanbul, Turkey.
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13
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Li J, Shan J, Kong Z, Fan C, Zhang Z, Fan B. Determining multi‐pesticide residues in teas by dispersive solid‐phase extraction combined with speed‐regulated directly suspended droplet microextraction followed by gas chromatography–tandem mass spectrometry. J Sep Sci 2019; 43:486-495. [DOI: 10.1002/jssc.201900484] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 10/16/2019] [Accepted: 10/17/2019] [Indexed: 01/10/2023]
Affiliation(s)
- Jianxun Li
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Laboratory of Quality & Safety Risk Assessment on Agro‐products Processing, Ministry of Agriculture and Rural AffairsKey Laboratory of Agro‐products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs Beijing P. R. China
- Agro‐product Safety Research CenterChinese Academy of Inspection and Quarantine Beijing P. R. China
| | - Jihao Shan
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Laboratory of Quality & Safety Risk Assessment on Agro‐products Processing, Ministry of Agriculture and Rural AffairsKey Laboratory of Agro‐products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs Beijing P. R. China
| | - Zhiqiang Kong
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Laboratory of Quality & Safety Risk Assessment on Agro‐products Processing, Ministry of Agriculture and Rural AffairsKey Laboratory of Agro‐products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs Beijing P. R. China
| | - Chunlin Fan
- Agro‐product Safety Research CenterChinese Academy of Inspection and Quarantine Beijing P. R. China
| | - Zijuan Zhang
- Agro‐product Safety Research CenterChinese Academy of Inspection and Quarantine Beijing P. R. China
| | - Bei Fan
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Laboratory of Quality & Safety Risk Assessment on Agro‐products Processing, Ministry of Agriculture and Rural AffairsKey Laboratory of Agro‐products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs Beijing P. R. China
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14
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Fırat M, Chormey DS, Bakırdere S, Turak F. Experimental design of switchable solvent-based liquid phase microextraction for the accurate determination of etrimfos from water and food samples at trace levels by GC-MS. ENVIRONMENTAL MONITORING AND ASSESSMENT 2019; 191:619. [PMID: 31493146 DOI: 10.1007/s10661-019-7797-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 08/27/2019] [Indexed: 06/10/2023]
Abstract
Presented in this study is a simple but efficient switchable polarity solvent microextraction strategy for etrimfos preconcentration from water and food samples for quantification by gas chromatography mass spectrometry. Repeatability of the extraction process and instrumental measurements were enhanced by using deuterated bisphenol A as internal standard. Significant parameters of the extraction method were fitted into an experimental design model to study the effects of parameters on extraction output, as well as mutual effects of combined parameters. The design model was formed with 51 experimented data obtained from the combination of sodium hydroxide volume, switchable solvent volume, and vortex period at three levels. The method was validated by applying optimum conditions attained from the model predictor. The detection limit was found to be 1.3 ng/mL and it corresponded to an enhancement factor of about 54 folds when compared to direct GC-MS measurement. Etrimfos was not detected in the water and food samples tested but the results (92-107%) obtained from spiked recovery experiments established that etrimfos when present in the selected matrices can be accurately and precisely quantified.
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Affiliation(s)
- Merve Fırat
- Faculty of Art and Science, Chemistry Department, Yıldız Technical University, 34210, İstanbul, Turkey
| | - Dotse Selali Chormey
- Faculty of Art and Science, Chemistry Department, Yıldız Technical University, 34210, İstanbul, Turkey
| | - Sezgin Bakırdere
- Faculty of Art and Science, Chemistry Department, Yıldız Technical University, 34210, İstanbul, Turkey.
| | - Fatma Turak
- Faculty of Art and Science, Chemistry Department, Yıldız Technical University, 34210, İstanbul, Turkey.
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15
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Dissipation Behavior of Three Pesticides in Prickly Pear ( Opuntia ficus-indica (L.) Mill.) Pads in Morelos, Mexico. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16162922. [PMID: 31443140 PMCID: PMC6720382 DOI: 10.3390/ijerph16162922] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 06/27/2019] [Accepted: 06/30/2019] [Indexed: 11/23/2022]
Abstract
The dissipation of three field-applied pesticides (chlorothalonil, chlorpyrifos, and malathion), on cultivated prickly pear (Opuntia ficus-indica (L.) Mill.) pads was studied. The extraction of pesticides was carried out using the European quick, easy, cheap, effective, rugged, and safe (QuEChERS) extraction technique and detection was carried out using tandem liquid chromatography with mass spectrometry. At harvest, 15 days after application, pesticide dissipation was below the level of detectability. Dissipation curves for prickly pear pads fit to a first-order kinetic equation. Two initial concentration levels were used for each pesticide. The approximate dissipation time for all pesticides studied was similar (10 days) and the half-life time was around six days. Final concentrations for the three pesticides were below the reference maximum residue level (MRL) (0.01 mg/kg), which suggests that these products can be applied safely in the commercial production of prickly pear pads at the established concentrations.
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16
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Simultaneous determination of cartap and its metabolite in tea using hydrophilic interaction chromatography tandem mass spectrometry and the combination of dispersive solid phase extraction and solid phase extraction. J Chromatogr A 2019; 1600:148-157. [DOI: 10.1016/j.chroma.2019.04.034] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 04/09/2019] [Accepted: 04/11/2019] [Indexed: 02/07/2023]
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17
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Zhang Y, Wu X, Li X, Duan T, Xu J, Dong F, Liu X, Guo L, Zheng Y. A fast and sensitive ultra-high-performance liquid chromatography-tandem mass spectrometry method for determining mefentrifluconazole in plant- and animal-derived foods. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2019; 36:1348-1357. [DOI: 10.1080/19440049.2019.1628361] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Ying Zhang
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, State Key Laboratory for Biology of Plant Diseases and In t Pests, Key Laboratory of Control of Biological Hazard Factors (Plant Origin) for Agricultural product Quality and Safety, Ministry of Agriculture, Beijing, People’s Republic of China
- Institute of Plant Protection, Guizhou Academy of Agricultural Sciences, Guiyang, People’s Republic of China
| | - Xiaohu Wu
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, State Key Laboratory for Biology of Plant Diseases and In t Pests, Key Laboratory of Control of Biological Hazard Factors (Plant Origin) for Agricultural product Quality and Safety, Ministry of Agriculture, Beijing, People’s Republic of China
| | - Xianbin Li
- Institute for the Control of Agrochemicals, Ministry of Agriculture and Rural Affairs, Beijing, People’s Republic of China
| | - Tingting Duan
- Institute of Plant Protection, Guizhou Academy of Agricultural Sciences, Guiyang, People’s Republic of China
| | - Jun Xu
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, State Key Laboratory for Biology of Plant Diseases and In t Pests, Key Laboratory of Control of Biological Hazard Factors (Plant Origin) for Agricultural product Quality and Safety, Ministry of Agriculture, Beijing, People’s Republic of China
| | - Fengshou Dong
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, State Key Laboratory for Biology of Plant Diseases and In t Pests, Key Laboratory of Control of Biological Hazard Factors (Plant Origin) for Agricultural product Quality and Safety, Ministry of Agriculture, Beijing, People’s Republic of China
| | - Xingang Liu
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, State Key Laboratory for Biology of Plant Diseases and In t Pests, Key Laboratory of Control of Biological Hazard Factors (Plant Origin) for Agricultural product Quality and Safety, Ministry of Agriculture, Beijing, People’s Republic of China
| | - Luyao Guo
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, State Key Laboratory for Biology of Plant Diseases and In t Pests, Key Laboratory of Control of Biological Hazard Factors (Plant Origin) for Agricultural product Quality and Safety, Ministry of Agriculture, Beijing, People’s Republic of China
| | - Yongquan Zheng
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, State Key Laboratory for Biology of Plant Diseases and In t Pests, Key Laboratory of Control of Biological Hazard Factors (Plant Origin) for Agricultural product Quality and Safety, Ministry of Agriculture, Beijing, People’s Republic of China
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18
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Wang F, Li S, Feng H, Yang Y, Xiao B, Chen D. An enhanced sensitivity and cleanup strategy for the nontargeted screening and targeted determination of pesticides in tea using modified dispersive solid-phase extraction and cold-induced acetonitrile aqueous two-phase systems coupled with liquid chromatography-high resolution mass spectrometry. Food Chem 2019; 275:530-538. [DOI: 10.1016/j.foodchem.2018.09.142] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2018] [Revised: 09/23/2018] [Accepted: 09/23/2018] [Indexed: 01/22/2023]
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19
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Jiao W, Hu Y, Ge G, Li J, Xiao Y, Cai H, He L, Hua R, Sun J, Hou R. Comparison of the Metabolic Behaviors of Six Systemic Insecticides in a Newly Established Cell Suspension Culture Derived from Tea ( Camellia sinensis L.) Leaves. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:8593-8601. [PMID: 30074784 DOI: 10.1021/acs.jafc.8b02417] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The use of an in vitro cell suspension to study insecticide metabolism is a simpler strategy compared to using intact plants, especially for a difficult matrix such as tea. In this study, a sterile tea leaf callus was inoculated into B5 liquid media with 2,4-dichlorophenoxyacetic acid (2,4-D, 1.0 mg L-1) and Kinetin (KT, 0.1 mg L-1). After 3-4 subcultures (28 days each), a good cell suspension was established. Utilizing these cultures, the metabolic behaviors of six insecticides, including two organophosphates (dimethoate, omethoate) and four neonicotinoids (thiamethoxam, imidacloprid, acetamiprid, and imidaclothiz) were compared. The results showed that thiamethoxam, dimethoate, and omethoate were easily metabolized by tea cells, with degradation ratios after 75 days of 55.3%, 90.4%, and 100%, respectively. Seven metabolites of thiamethoxan and two metabolites of dimethoate were found in treated cell cultures using mass-spectrometry, compared to only two metabolites for thiamethoxam and one for dimethoate in treated intact plants.
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Affiliation(s)
- Weiting Jiao
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology , Anhui Agricultural University , Hefei 230036 , P. R. China
- Anhui Province Key Lab of Analysis and Detection for Food Safety , Hefei 230022 , P. R. China
- School of Resource & Environment of Anhui Agricultural University , Key Laboratory of Agri-food Safety of Anhui Province , Hefei 230036 , P. R. China
| | - Yizheng Hu
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology , Anhui Agricultural University , Hefei 230036 , P. R. China
- Anhui Province Key Lab of Analysis and Detection for Food Safety , Hefei 230022 , P. R. China
| | - Guoqin Ge
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology , Anhui Agricultural University , Hefei 230036 , P. R. China
- Anhui Province Key Lab of Analysis and Detection for Food Safety , Hefei 230022 , P. R. China
| | - Jianchao Li
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology , Anhui Agricultural University , Hefei 230036 , P. R. China
- Anhui Province Key Lab of Analysis and Detection for Food Safety , Hefei 230022 , P. R. China
| | - Yu Xiao
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology , Anhui Agricultural University , Hefei 230036 , P. R. China
- Anhui Province Key Lab of Analysis and Detection for Food Safety , Hefei 230022 , P. R. China
- Anhui Entry-Exit Inspection and Quarantine Bureau of the P. R. China , Hefei 230022 , P. R. China
| | - Huimei Cai
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology , Anhui Agricultural University , Hefei 230036 , P. R. China
- Anhui Province Key Lab of Analysis and Detection for Food Safety , Hefei 230022 , P. R. China
| | - Lili He
- Department of Food Science , University of Massachusetts , Amherst , Massachusetts 01003 , United States
| | - Rimao Hua
- School of Resource & Environment of Anhui Agricultural University , Key Laboratory of Agri-food Safety of Anhui Province , Hefei 230036 , P. R. China
| | - Jun Sun
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology , Anhui Agricultural University , Hefei 230036 , P. R. China
- Anhui Province Key Lab of Analysis and Detection for Food Safety , Hefei 230022 , P. R. China
| | - Ruyan Hou
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology , Anhui Agricultural University , Hefei 230036 , P. R. China
- Anhui Province Key Lab of Analysis and Detection for Food Safety , Hefei 230022 , P. R. China
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20
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Development and validation of an ultra performance liquid chromatography Q-Exactive Orbitrap mass spectrometry for the determination of fipronil and its metabolites in tea and chrysanthemum. Food Chem 2017; 246:328-334. [PMID: 29291857 DOI: 10.1016/j.foodchem.2017.11.017] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 10/26/2017] [Accepted: 11/03/2017] [Indexed: 12/18/2022]
Abstract
A fast, sensitive and reliable method for the determination of fipronil and its metabolites in tea and chrysanthemum was developed using a modified QuEChERS technique and an ultra performance liquid chromatography Q-Exactive Orbitrap mass spectrometry. The mixture of adsorbents containing primary secondary amine (PSA), octadecylsilane (C18) and carbon nanotubes (CNTs), was used as QuEChERS adsorbents. The use of mass resolution at 70000 full width at half maximum (FWHM) and narrow mass windows at 5 ppm achieved high selectivity and repeatability. Satisfactory linearity with correlative coefficient (R2) higher than 0.996 was achieved for all compounds. Recoveries at three levels (2, 10 and 50 μg kg-1) ranged from 86% to 112%, while the intra- and inter-day accuracies were less than 15%. Limits of quantification for fipronil and its metabolites were 2 μg kg-1, which fulfils the requirement of maximum residue limits formulated by European Union and Japan.
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21
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Chen X, Bian Y, Liu F, Teng P, Sun P. Comparison of micellar extraction combined with ionic liquid based vortex-assisted liquid–liquid microextraction and modified quick, easy, cheap, effective, rugged, and safe method for the determination of difenoconazole in cowpea. J Chromatogr A 2017; 1518:1-7. [DOI: 10.1016/j.chroma.2017.08.042] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 08/14/2017] [Accepted: 08/14/2017] [Indexed: 10/19/2022]
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22
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Ueda Y, Honda K. Development of Rapid Cleanup Method Using New Cleanup Agents for Analysis of Pesticide Residues in Tea. Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi) 2017; 58:188-194. [PMID: 28855473 DOI: 10.3358/shokueishi.58.188] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Cleanup using two types of agents (S-NH2 and S-Si) developed by the authors was investigated with the aim of removing interfering substances such as catechin and caffeine to enable analysis of pesticide residues in tea. S-NH2 and S-Si removed approximately 100% of catechin and caffeine in 6 species of tea. Recoveries of 61 pesticides in tea were tested at the level of 0.1 μg/g, and 44 pesticides showed recovery within the range from 70 to 120%, with RSD of less than 10%. With cleanup using S-NH2 and S-Si, pesticide residues in tea could be analyzed within two hours.
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Affiliation(s)
- Yuko Ueda
- Faculty of Agriculture, Ehime University
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23
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Amelin VG, Lavrukhina OI. Food safety assurance using methods of chemical analysis. JOURNAL OF ANALYTICAL CHEMISTRY 2017. [DOI: 10.1134/s1061934817010038] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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24
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Evaluation of transfer rates of multiple pesticides from green tea into infusion using water as pressurized liquid extraction solvent and ultra-performance liquid chromatography tandem mass spectrometry. Food Chem 2017; 216:1-9. [DOI: 10.1016/j.foodchem.2016.07.175] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Revised: 07/22/2016] [Accepted: 07/28/2016] [Indexed: 01/20/2023]
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25
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Yadav S, Rai S, Srivastava AK, Panchal S, Patel DK, Sharma VP, Jain S, Srivastava LP. Determination of pesticide and phthalate residues in tea by QuEChERS method and their fate in processing. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:3074-3083. [PMID: 27854062 DOI: 10.1007/s11356-016-7673-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Accepted: 09/09/2016] [Indexed: 06/06/2023]
Abstract
In this study, the quick, easy, cheap, effective, rugged, and safe (QuEChERS) method was applied for the analysis of the multiclass pesticide residues of 12 organochlorines (OCs), 9 organophosphates (OPs), 11 synthetic pyrethroids (SPs), 4 herbicides, 6 phthalates in raw tea (loose tea, branded tea and herbal tea), and tea infusion in 4 different containers (glass cup, earthen cup, plastic bag and disposal cup). In loose tea and branded tea residues, malathion (0.257 and 0.118 mg kg-1), cypermethrin (0.065 and 0.030 mg kg-1), and fenvalerate (0.032 and 0.030 mg kg-1) were detected, respectively. In herbal tea, residues of only cypermethrin (0.053 mg kg-1) and fenvalerate (0.045 mg kg-1) were detected. Tea infusion samples contained in a plastic bag were found to be contaminated with only dibutyl phthalate (DBP) (0.038 mg kg-1). Disposable cup was found to be contaminated with DBP (0.026 mg kg-1) and diethyl phthalate (DEP) (0.004 mg kg-1). Further, to know the processing behavior of pesticides, the spiked raw tea was subjected to tea infusion at different brewing times (2, 5, 10 min). The analysis demonstrated that dimethoate, dichlorvos, and malathion had shown more than 10 % of translocation at 5 min of brewing time. Further brewing for 10 min revealed the reduction in concentration of pesticides. Leaching of phthalate residues from different plastic containers was also studied at 10, 30, and 60 min. DBP, benzyl butyl phthalate (BzBP), and di-2-(ethylhexyl) phthalate (DEHP) were leached in the tea infusion samples packed in plastic bags. On the other hand, in disposable cups, leaching of DBP, DEP, and dimethyl phthalate were found. The concentration of phthalate residues increased with retention time. Pesticide and phthalate contaminants were recorded at low quantities in few samples only.
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Affiliation(s)
- Sapna Yadav
- Pesticide Toxicology Laboratory, Regulatory Toxicology Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), MG Marg, Lucknow, Uttar Pradesh, 226001, India
| | - Satyajeet Rai
- Pesticide Toxicology Laboratory, Regulatory Toxicology Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), MG Marg, Lucknow, Uttar Pradesh, 226001, India
| | - Ashutosh K Srivastava
- Indian Council of Medical Research, Department of Health Research,Ministry of Health & Family Welfare, National Aids Research Institute, Plot No.73, G Block, MIDC, Pune, Bhosari, 411 026, India
| | - Smita Panchal
- Analytical Chemistry Laboratory, Regulatory Toxicology Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), MG Marg, Lucknow, Uttar Pradesh, 226001, India
| | - D K Patel
- Analytical Chemistry Laboratory, Regulatory Toxicology Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), MG Marg, Lucknow, Uttar Pradesh, 226001, India
| | - V P Sharma
- Developmental Toxicology Laboratory, Regulatory Toxicology Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), MG Marg, Lucknow, Uttar Pradesh, 226001, India
| | - Sudha Jain
- Department of Chemistry, University of Lucknow, Lucknow, Uttar Pradesh, 226007, India
| | - L P Srivastava
- Pesticide Toxicology Laboratory, Regulatory Toxicology Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), MG Marg, Lucknow, Uttar Pradesh, 226001, India.
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26
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Jiao W, Xiao Y, Qian X, Tong M, Hu Y, Hou R, Hua R. Optimized combination of dilution and refined QuEChERS to overcome matrix effects of six types of tea for determination eight neonicotinoid insecticides by ultra performance liquid chromatography–electrospray tandem mass spectrometry. Food Chem 2016; 210:26-34. [DOI: 10.1016/j.foodchem.2016.04.097] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2015] [Revised: 02/13/2016] [Accepted: 04/20/2016] [Indexed: 11/25/2022]
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27
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Qin Y, Zhang J, Zhang Y, Li F, Han Y, Zou N, Xu H, Qian M, Pan C. Automated multi-plug filtration cleanup for liquid chromatographic-tandem mass spectrometric pesticide multi-residue analysis in representative crop commodities. J Chromatogr A 2016; 1462:19-26. [PMID: 27507726 DOI: 10.1016/j.chroma.2016.07.073] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Revised: 07/26/2016] [Accepted: 07/26/2016] [Indexed: 12/23/2022]
Abstract
An automated multi-plug filtration cleanup (m-PFC) method on modified QuEChERS (quick, easy, cheap, effective, rugged, and safe) extracts was developed. The automatic device was aimed to reduce labor-consuming manual operation workload in the cleanup steps. It could control the volume and the speed of pulling and pushing cycles accurately. In this work, m-PFC was based on multi-walled carbon nanotubes (MWCNTs) mixed with other sorbents and anhydrous magnesium sulfate (MgSO4) in a packed tip for analysis of pesticide multi-residues in crop commodities followed by liquid chromatography with tandem mass spectrometric (LC-MS/MS) detection. It was validated by analyzing 25 pesticides in six representative matrices spiked at two concentration levels of 10 and 100μg/kg. Salts, sorbents, m-PFC procedure, automated pulling and pushing volume, automated pulling speed, and pushing speed for each matrix were optimized. After optimization, two general automated m-PFC methods were introduced to relatively simple (apple, citrus fruit, peanut) and relatively complex (spinach, leek, green tea) matrices. Spike recoveries were within 83 and 108% and 1-14% RSD for most analytes in the tested matrices. Matrix-matched calibrations were performed with the coefficients of determination >0.997 between concentration levels of 10 and 1000μg/kg. The developed method was successfully applied to the determination of pesticide residues in market samples.
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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 100193, China
| | - Jingru Zhang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Yuan Zhang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Fangbing Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Yongtao Han
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Nan Zou
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Haowei Xu
- Tianjin Bonna-Agela Technologies, Tianjin 300462, China
| | - Meiyuan Qian
- Tianjin Bonna-Agela Technologies, Tianjin 300462, China
| | - Canping Pan
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China.
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28
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Kim SW, Abd El-Aty A, Choi JH, Lee YJ, Lieu TT, Chung HS, Rahman MM, Choi OJ, Shin HC, Rhee GS, Chang MI, Kim HJ, Shim JH. Contributing effect of various washing procedures and additives on the decline pattern of diethofencarb in crown daisy, a model of leafy vegetables. Food Chem 2016; 201:153-9. [DOI: 10.1016/j.foodchem.2016.01.064] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 01/11/2016] [Accepted: 01/15/2016] [Indexed: 12/26/2022]
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29
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Determination of 16 Polycyclic Aromatic Hydrocarbons in Tea by Simultaneous Dispersive Solid-Phase Extraction and Liquid–Liquid Extraction Coupled with gas Chromatography–Tandem Mass Spectrometry. FOOD ANAL METHOD 2016. [DOI: 10.1007/s12161-016-0427-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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30
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Pesticide Residue Rapid Extraction from Ginseng Tea Using a Modified Luke Method for GC–MS. FOOD ANAL METHOD 2016. [DOI: 10.1007/s12161-016-0400-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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31
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Zheng HB, Ding J, Zheng SJ, Yu QW, Yuan BF, Feng YQ. Magnetic “one-step” quick, easy, cheap, effective, rugged and safe method for the fast determination of pesticide residues in freshly squeezed juice. J Chromatogr A 2015; 1398:1-10. [DOI: 10.1016/j.chroma.2015.04.021] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Revised: 03/18/2015] [Accepted: 04/10/2015] [Indexed: 11/30/2022]
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32
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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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