1
|
Zhou R, Kong C, Wen Y, Yang G, Huo W, Zhang C, Sun H, Liu H, Huang D, Li J. One step cleanup of 160 pesticides and veterinary drugs in aquatic products using melamine-based automatic pressure filtration purification method combined with HPLC-MS/MS. Food Chem 2024; 443:138493. [PMID: 38281413 DOI: 10.1016/j.foodchem.2024.138493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 01/16/2024] [Accepted: 01/16/2024] [Indexed: 01/30/2024]
Abstract
A 15-channel pressure filtration purification method was presented for high throughput sample preparation of aquatic products. A cost-effective device was constructed and melamine sponge was selected as the cleanup sorbent. Upon interfacing with HPLC-MS/MS, the analytical procedure demonstrated its suitability for quantifying 160 pesticides and veterinary drug residues in aquatic products such as fish, shrimp, and crab. The method achieved sample recoveries ranging from 61.3 to 124.9 %. The detection limits were established between 0.5 and 1.0 μg/kg, while the quantitation limits were confirmed to be within the range of 1.0-2.0 μg/kg. The method was applied to quantify the pesticide and veterinary drug residues in mostly consumed aquatic products from five coastal provinces in China. The results showed significant differences between different aquatic products in the concentrations of pesticide and veterinary drug residues, implying the necessity of supervision for the accurate determination of pesticides and veterinary drugs.
Collapse
Affiliation(s)
- Ruidong Zhou
- Key Laboratory of East China Sea Fishery Resources Exploitation, Ministry of Agriculture and Rural Affairs, East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, PR China; Chinese Academy of Fishery Sciences, Beijing 100141, PR China; Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture and Rural Affairs, Beijing 100141, PR China; College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, PR China
| | - Cong Kong
- Key Laboratory of East China Sea Fishery Resources Exploitation, Ministry of Agriculture and Rural Affairs, East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, PR China
| | - Yupeng Wen
- Chinese Academy of Fishery Sciences, Beijing 100141, PR China; Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture and Rural Affairs, Beijing 100141, PR China; College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, PR China
| | - Guangxin Yang
- Key Laboratory of East China Sea Fishery Resources Exploitation, Ministry of Agriculture and Rural Affairs, East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, PR China
| | - Wendi Huo
- Chinese Academy of Fishery Sciences, Beijing 100141, PR China; Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture and Rural Affairs, Beijing 100141, PR China; School of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, PR China
| | - Chaoying Zhang
- Chinese Academy of Fishery Sciences, Beijing 100141, PR China; Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture and Rural Affairs, Beijing 100141, PR China
| | - Huiwu Sun
- Chinese Academy of Fishery Sciences, Beijing 100141, PR China; Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture and Rural Affairs, Beijing 100141, PR China
| | - Huan Liu
- Chinese Academy of Fishery Sciences, Beijing 100141, PR China; Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture and Rural Affairs, Beijing 100141, PR China
| | - Dongmei Huang
- Key Laboratory of East China Sea Fishery Resources Exploitation, Ministry of Agriculture and Rural Affairs, East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, PR China
| | - Jincheng Li
- Chinese Academy of Fishery Sciences, Beijing 100141, PR China; Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture and Rural Affairs, Beijing 100141, PR China.
| |
Collapse
|
2
|
Zeng Y, Lan T, Li X, Chen Y, Yang Q, Qu B, Zhang Y, Pan C. A comparison of the determination of multiple pesticide residues in fruits, vegetables, and edible fungi using gas chromatography combined with filtration purification and solid-phase extraction. RSC Adv 2024; 14:16898-16911. [PMID: 38799210 PMCID: PMC11123614 DOI: 10.1039/d3ra07584b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 05/10/2024] [Indexed: 05/29/2024] Open
Abstract
The multiplug filtration clean-up (m-PFC) and solid-phase extraction (SPE) pretreatment methods were employed to process 8 representative matrices in fruits, vegetables, and edible fungi, respectively. 37 pesticide residues were determined using gas chromatography equipped with ECD and FPD detectors. The measurement data were compared and analyzed following m-PFC purification and gas chromatography analysis, and both accuracy and precision met the (EU) 2021/808 requirements, achieving recovery rates for the 8 matrices ranging from 67.0% to 112.8% (averaging over 83.8% recovery), and RSDs between 0.2% and 15.2%. The 37 pesticides exhibited good linearity between 0.05 and 1.6 μg mL-1, and the matrix effect was found to be weaker compared to that of the Florisil solid-phase extraction method. The detection limits ranged from 0.0001 to 0.03 μg kg-1, with 31 pesticides showing lower detection limits compared to the SPE method. The application of this method to 150 real samples resulted in the detection of 17 pesticides across all samples. Fewer pigments were detected in m-PFC purified solutions compared to Florisil PR SPE when analyzed by liquid chromatography. m-PFC achieved more thorough adsorption of endogenous substances like pigments, reducing instrument contamination, utilizing less organic solvent, and simplifying the operation. This purification step offers clear advantages, allowing for the processing of larger sample batches in a short time. It can serve as a replacement for SPE methods like Florisi PR in batch detection of fruit and vegetable samples.
Collapse
Affiliation(s)
- Yan Zeng
- Ya'an Agricultural Food Quality Monitoring and Testing Center Ya'an 625000 China
| | - Tao Lan
- China National Institute of Standardization Beijing 100191 China
| | - Xiaxue Li
- Ya'an Agricultural Food Quality Monitoring and Testing Center Ya'an 625000 China
| | - Ya Chen
- Ya'an Agricultural Food Quality Monitoring and Testing Center Ya'an 625000 China
| | - Qiaohui Yang
- Ya'an Agricultural Food Quality Monitoring and Testing Center Ya'an 625000 China
| | - Bin Qu
- Beijing KNORTH Technology Co., Ltd Beijing 102299 China
| | - Yu Zhang
- Ya'an Agricultural Food Quality Monitoring and Testing Center Ya'an 625000 China
| | - Canping Pan
- College of Science, China Agricultural University No. 2, Yuanmingyuan West Road, Haidian District Beijing 100193 China +86-18080598805
| |
Collapse
|
3
|
WANG X, RAO Q, ZHANG Q, DU P, SONG W. [Determination of 14 perfluoroalkyl substances in Chinese mitten crab by multi-plug filtration cleanup coupled with ultra-performance liquid chromatography-tandem mass spectrometry]. Se Pu 2023; 41:1095-1105. [PMID: 38093539 PMCID: PMC10719808 DOI: 10.3724/sp.j.1123.2023.07017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Indexed: 12/17/2023] Open
Abstract
Perfluoroalkyl substances (PFASs) have become a new food-safety problem. Dietary intake is a major pathway of human exposure to PFASs. Chinese mitten crab (Eriocheir sinensis) is a high-end aquaculture product popular among consumers in China. Conventional extraction methods for PFASs are cumbersome and time consuming, and result in incomplete purification; thus, this technique does not meet the requirements for PFAS detection. Herein, an analytical strategy was established for the rapid detection of 14 PFASs in Chinese mitten crab based on multi-plug filtration cleanup (m-PFC) and ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). The carbon-chain length of the 14 PFASs analyzed in this study ranged from 4 to 14, and they are perfluorobutanoic acid (PFBA), perfluoro-n-pentanoic acid (PFPeA), perfluorohexanoic acid (PFHxA), perfluoroheptanoic acid (PFHpA), perfluorooctanoic acid (PFOA), perfluorononanoic acid (PFNA), perfluorodecanoic acid (PFDA), perfluoroundecanoic acid (PFUnDA), perfluorododecanoic acid (PFDoDA), perfluorotetradecanoic acid (PFTeDA), perfluoro-1-butane sulfonic acid (PFBS), perfluoro-1-hexane sulfonic acid (PFHxS), perfluoro-1-octane sulfonic acid (PFOS), and perfluoro-1-decanesulfonate (PFDS). The m-PFC column was prepared using carboxy-based multiwalled carbon nanotubes, and used to reduce the interference of sample impurities. The samples were extracted with 5 mL of 0.1% formic acid aqueous solution, 15 mL of acetonitrile and extraction salt (2 g Na2SO4 and 2 g NaCl). The supernatant (10 mL) was purified using the m-PFC column, concentrated to near dryness under nitrogen, and then redissolved in 1 mL of methanol. Finally, the sample solution was filtered through a 0.22 μm polypropylene syringe filter for UPLC-MS/MS analysis. The target analytes were separated using a Shimadzu Shim-pack G1ST-C18 chromatographic column (100 mm×2.1 mm, 2 μm) using methanol (A) and 5 mmol/L ammonium acetate aqueous solution (B) as the mobile phases via gradient elution. The linear gradient program were as follows: 0-0.5 min, 10%A-35%A; 0.5-3 min, 35%A-60%A; 3-5 min, 60%A-100%A; 5-6.5 min, 100%A; 6.5-7 min, 100%A-10%A. The target analytes were analyzed using negative electrospray ionization in multiple-reaction monitoring mode, and quantitative analysis was performed using the internal standard method. In this study, we optimized the mobile-phase system as well as the extraction solvent, time, volume, and salt. The 14 PFASs exhibited good peak shapes and sensitivities when the 5 mmol/L ammonium acetate solution-methanol system was used as the mobile phase. Compared with acetonitrile or methanol alone, the extraction efficiencies of the 14 PFASs were significantly improved when 5 mL of 0.1% formic acid aqueous solution was added, followed by 15 mL of acetonitrile. The extraction efficiencies of the 14 PFASs did not differ significantly when the extraction time was within 3-15 min. The extraction salt (MgSO4, Na2SO4, NaCl, (NH4)2SO4, and Na2SO4+NaCl) significantly affected the extraction efficiencies of the 14 PFASs. The highest extraction efficiencies of the 14 PFASs, which ranged from 47.9% to 121.9%, were obtained when Na2SO4+NaCl was used as the extraction salt. Under the optimal experimental conditions, good linearities (R2=0.998-0.999) were obtained for seven PFASs (PFBS, PFHxA, PFHpA, PFHxS, PFDA, PFDoDA, PFTeDA) at 0.10-100 μg/L, and seven PFASs (PFBA, PFPeA, PFOA, PFOS, PFNA, PFUnDA, PFDS) at 0.50-100 μg/L. The average spiked recoveries for the 14 PFASs in Chinese mitten crabs at three levels ranged from 73.1% to 120%, with relative standard deviations (RSDs) in the range of 1.68%-19.5%(n=6). The limits of detection (LODs) and quantification (LOQs) of the 14 PFASs were in the range of 0.03-0.15 and 0.10-0.50 μg/kg, respectively. The developed method was applied to the analysis of crab samples collected from three farms in Shanghai, and PFASs with total concentrations of 3.52-37.77 μg/kg were detected in all samples. The detection frequencies for PFDA, PFUnDA, PFDoDA, PFTeDA, and PFOS were 100%. PFDA, PFUnDA, PFOS, and PFDoDA were the most abundant congeners, accounting for 31.2%, 30.6%, 15.0%, and 10.9%, respectively, of the 14 PFASs detected. The proposed method is simple, efficient, accurate, and suitable for the rapid analysis of 14 PFASs in Chinese mitten crabs.
Collapse
|
4
|
Zhou Y, Wu Y, Zeng W, An Q, Chen G, Pan C. Determination of Multi-pesticides Residues in Jasmine Flower and Its Scented Tea. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2023; 110:48. [PMID: 36707471 DOI: 10.1007/s00128-023-03687-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 01/08/2023] [Indexed: 06/18/2023]
Abstract
For minor crops such as jasmine, the lack of pesticide registration and maximum residue limits are important issues that need to be solved in order to facilitate trading and ensure food safety. Meanwhile, reliable and quick analytical methods for multi-pesticide residues in these commodities are few, but required by various stakeholders. In this study, a method for detecting twenty-five most frequently used pesticides in jasmine flower and its scented tea by multi-plug filtration cleanup and ultra-high-performance liquid chromatography-tandem mass spectrometry was developed and validated. The cleanup process was optimized and compared with the dispersive solid phase extraction procedure. The method was validated, showing that except for methomyl, recoveries of twenty-five pesticides were 64%-108%, with relative standard deviations (n = 5) of 0.33%-10%. The method was successfully applied to detect pesticide residues in marketed samples. The results showed that some flower and tea samples contained a combination of different pesticide residues.
Collapse
Affiliation(s)
- Yilu Zhou
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, 2 Yuanmingyuan West Road, Haidian District, Beijing, 100193, People's Republic of China
| | - Yangliu Wu
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, 2 Yuanmingyuan West Road, Haidian District, Beijing, 100193, People's Republic of China
| | - Wenbo Zeng
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, 2 Yuanmingyuan West Road, Haidian District, Beijing, 100193, People's Republic of China
| | - Quanshun An
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, 2 Yuanmingyuan West Road, Haidian District, Beijing, 100193, People's Republic of China
| | - Guanyu Chen
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, 2 Yuanmingyuan West Road, Haidian District, Beijing, 100193, People's Republic of China
| | - Canping Pan
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, 2 Yuanmingyuan West Road, Haidian District, Beijing, 100193, People's Republic of China.
| |
Collapse
|
5
|
Ma L, Cao L, Feng Y, Jia L, Liu C, Ding Q, Liu J, Shao P, Pan C. Automatic Multi-Plug Filtration Cleanup Tip-Filtration with Ultra-Performance Liquid Chromatography/Tandem Mass Spectrometry Detection For 22 Pesticide Residues in Typical Vegetables. J Chromatogr Sci 2022:6958658. [PMID: 36563020 DOI: 10.1093/chromsci/bmac104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 10/01/2022] [Accepted: 11/29/2022] [Indexed: 12/24/2022]
Abstract
An automatic multi-plug filtration cleanup (m-PFC) tip-filtration method was developed to reduce the manual operation workload in sample preparation. In this work, m-PFC was based on multi-walled carbon nanotubes mixed with primary secondary amines and anhydrous magnesium sulfate (MgSO4) in a packed column for analysis of pesticide residues followed by ultra-performance liquid chromatography coupled with tandem mass spectrometry. Method validation was performed on 22 pesticide residues in carrot, spinach and leek, at spiked levels of 5, 10 and 50 μg/kg, respectively. The average recoveries were between 70.1 and 119.5% with associated relative standard deviations <20% (n = 6) indicating satisfactory accuracy and repeatability. Matrix-matched calibration curves were performed with the correlation coefficients (R2) higher than 0.9903 within a linearity range of 5-100 ng/mL. The limits of quantification were 5 μg/kg for all the pesticides in carrot, spinach and leek matrices. The developed method was successfully used to determine pesticide residues in market samples.
Collapse
Affiliation(s)
- Lili Ma
- Institute of Analysis and Testing, Beijing Academy of Science and Technology (Beijing Center for Physical and Chemical Analysis), Beijing Engineering Research Center of Food Safety Analysis, No. 27, West Third Ring Road, Haidian District, Beijing 100089, China
| | - Lihua Cao
- Industrial Products Testing Center, Nanjing Customs, No. 39, Chuangzhi Road, Jianye District, Nanjing 210019, China
| | - Yuechao Feng
- Institute of Analysis and Testing, Beijing Academy of Science and Technology (Beijing Center for Physical and Chemical Analysis), Beijing Engineering Research Center of Food Safety Analysis, No. 27, West Third Ring Road, Haidian District, Beijing 100089, China
| | - Li Jia
- Institute of Analysis and Testing, Beijing Academy of Science and Technology (Beijing Center for Physical and Chemical Analysis), Beijing Engineering Research Center of Food Safety Analysis, No. 27, West Third Ring Road, Haidian District, Beijing 100089, China
| | - Cong Liu
- Institute of Analysis and Testing, Beijing Academy of Science and Technology (Beijing Center for Physical and Chemical Analysis), Beijing Engineering Research Center of Food Safety Analysis, No. 27, West Third Ring Road, Haidian District, Beijing 100089, China
| | - Qi Ding
- Institute of Analysis and Testing, Beijing Academy of Science and Technology (Beijing Center for Physical and Chemical Analysis), Beijing Engineering Research Center of Food Safety Analysis, No. 27, West Third Ring Road, Haidian District, Beijing 100089, China
| | - Jia Liu
- Institute of Analysis and Testing, Beijing Academy of Science and Technology (Beijing Center for Physical and Chemical Analysis), Beijing Engineering Research Center of Food Safety Analysis, No. 27, West Third Ring Road, Haidian District, Beijing 100089, China
| | - Peng Shao
- Institute of Analysis and Testing, Beijing Academy of Science and Technology (Beijing Center for Physical and Chemical Analysis), Beijing Engineering Research Center of Food Safety Analysis, No. 27, West Third Ring Road, Haidian District, Beijing 100089, China
| | - Canping Pan
- College of Science, China Agricultural University, No. 2, Yuanmingyuan West Road, Haidian District, Beijing 100193, China
| |
Collapse
|
6
|
Mu S, Teng T, Zhou R, Liu H, Sun H, Li J. Development and evaluation of a semi-automatic single-step clean-up apparatus for rapid analysis of 18 antibiotics in fish samples. J Food Compost Anal 2022. [DOI: 10.1016/j.jfca.2022.104718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
7
|
Development of a vortex oscillating clean-up column for high-throughput semi-automatic sample preparation of drug residues in fish muscle tissues. J Food Compost Anal 2022. [DOI: 10.1016/j.jfca.2022.104506] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
|
8
|
Wang X, Zhang Q, Zhao Z, Song W, Cheng L, Yang J, Chen S, Guan S, Song W, Rao Q, Zhao Z. A multi-plug filtration (m-PFC) cleanup method based on carboxylic multi-walled carbon nanotubes for the detection of 14 perfluorinated compounds and dietary risk assessment of chicken, beef, and mutton collected from Shanghai markets. Food Control 2021. [DOI: 10.1016/j.foodcont.2021.108330] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
9
|
Meng Z, Li Q, Cong J, Huang Y, Wang D, Pan C, Fan S, Zhang Y. Rapid Screening of 350 Pesticide Residues in Vegetable and Fruit Juices by Multi-Plug Filtration Cleanup Method Combined with Gas Chromatography-Electrostatic Field Orbitrap High Resolution Mass Spectrometry. Foods 2021; 10:1651. [PMID: 34359521 PMCID: PMC8305287 DOI: 10.3390/foods10071651] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 06/20/2021] [Accepted: 07/06/2021] [Indexed: 11/16/2022] Open
Abstract
A new method for screening pesticide residues in vegetable and fruit juices by the multi-plug filtration cleanup (m-PFC) method combined with gas chromatography-electrostatic field orbitrap high resolution mass spectrometry(GC-Orbitrap/MS) was developed. The samples were extracted with acetonitrile, purified with m-PFC and determined by GC-Orbitrap/MS. Qualitative analysis was confirmed by retention time, accurate molecular mass and quantitative analysis were performed with the matrix standard calibration. It could eliminate matrix interference effectively. Eight kinds of typical samples (orange juice, apple juice, grape juice, strawberry juice, celery juice, carrot juice, cucumber juice, tomato juice) were evaluated. The linear ranges of the 350 pesticides were from 5 to 500 μg/kg, with good correlation coefficients greater than 0.990. The limits of detection (LODs) were 0.3-3.0 μg/kg and the limits of quantification (LOQs) were 1.0-10.0 μg/kg. The average recoveries at three spiked levels of 10, 100, 200 μg/kg were in the range of 72.8-122.4%, with relative standard deviations (RSDs) of 2.0-10.8%. The method has effectively improved the determination efficiency of pesticide residue screening by high-resolution mass spectrometry in vegetable and fruit juices.
Collapse
Affiliation(s)
- Zhijuan Meng
- Key Laboratory of Food Safety of Hebei Province, Hebei Food Inspection and Research Institute, Shijiazhuang 050091, China; (Z.M.); (Q.L.); (Y.H.); (D.W.)
| | - Qiang Li
- Key Laboratory of Food Safety of Hebei Province, Hebei Food Inspection and Research Institute, Shijiazhuang 050091, China; (Z.M.); (Q.L.); (Y.H.); (D.W.)
| | - Jianhan Cong
- Beijing Key Laboratory of Environmental and Viral Oncology, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China;
| | - Yunxia Huang
- Key Laboratory of Food Safety of Hebei Province, Hebei Food Inspection and Research Institute, Shijiazhuang 050091, China; (Z.M.); (Q.L.); (Y.H.); (D.W.)
| | - Dong Wang
- Key Laboratory of Food Safety of Hebei Province, Hebei Food Inspection and Research Institute, Shijiazhuang 050091, China; (Z.M.); (Q.L.); (Y.H.); (D.W.)
| | - Canping Pan
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China;
| | - Sufang Fan
- Key Laboratory of Food Safety of Hebei Province, Hebei Food Inspection and Research Institute, Shijiazhuang 050091, China; (Z.M.); (Q.L.); (Y.H.); (D.W.)
| | - Yan Zhang
- Key Laboratory of Food Safety of Hebei Province, Hebei Food Inspection and Research Institute, Shijiazhuang 050091, China; (Z.M.); (Q.L.); (Y.H.); (D.W.)
| |
Collapse
|
10
|
Dong X, Lan T, Tian X, Li Y, Zhao Y, Zong Q, Liu S, Pan C. Simultaneous determination of 14 pesticide residues in tea by multi-plug filtration cleanup combined with LC-MS/MS. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2021; 56:771-781. [PMID: 34190035 DOI: 10.1080/03601234.2021.1944962] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
A combined method of multi-plug filtration cleanup (m-PFC) and liquid chromatography-triple quadrupole mass spectrometry (LC-MS/MS) was established to simultaneously detect 14 pesticides in tea. The pesticides in water-soaked tea were extracted with acetonitrile. Cleanup of tea extract was performed using an m-PFC column packed with multiple cleanup materials: multi-walled carbon nano-tubes (MWCNTs), primary secondary amine (PSA) and anhydrous magnesium sulfate (MgSO4). The cleanup effect of the column was evaluated based on the rates of removal of tea components that interfered with pesticide recovery, henceforth referred to as interference components. Results showed that 14 pesticides had strong linearity in the range of 5-500 μg L-1 (r2 > 0.99). The quantitative limits were within the range of 3-50 μg kg-1. The average recoveries of 14 pesticides spiked into three different blank tea samples (green tea, black tea, oolong tea) at three levels of 0.05, 0.50 and 2.00 mg kg-1 were in the range of 62.3-108.8% with relative standard deviations of 0.2-13.6%. The m-PFC method can greatly improve the efficiency of sample pretreatment. Furthermore, this work provides methodological guidance on how to select cleanup materials and allocate their proportions.
Collapse
Affiliation(s)
- Xiaoqian Dong
- Beijing Centre for Tea Qualify Supervision and Inspection, Beijing Academy of Food Sciences, Beijing, China
| | - Tao Lan
- China National Institute of Standardization, Beijing, China
| | - Xu Tian
- Beijing Centre for Tea Qualify Supervision and Inspection, Beijing Academy of Food Sciences, Beijing, China
| | - Yanmei Li
- Beijing Centre for Tea Qualify Supervision and Inspection, Beijing Academy of Food Sciences, Beijing, China
| | - Yan Zhao
- Beijing Centre for Tea Qualify Supervision and Inspection, Beijing Academy of Food Sciences, Beijing, China
| | - Qi Zong
- Beijing Centre for Tea Qualify Supervision and Inspection, Beijing Academy of Food Sciences, Beijing, China
| | - Songnan Liu
- Beijing Centre for Tea Qualify Supervision and Inspection, Beijing Academy of Food Sciences, Beijing, China
| | - Canping Pan
- College of Science, China Agricultural University, Beijing, China
| |
Collapse
|
11
|
Li D, Zhou C, Zou N, Wu Y, Zhang J, An Q, Li JQ, Pan C. Nanoselenium foliar application enhances biosynthesis of tea leaves in metabolic cycles and associated responsive pathways. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 273:116503. [PMID: 33486255 DOI: 10.1016/j.envpol.2021.116503] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 12/26/2020] [Accepted: 01/11/2021] [Indexed: 05/05/2023]
Abstract
An emerging stress of pesticides in plant and soil is closely watched as it affects crop antioxidant systems, nutritional quality, and flavor. Although selenium (Se) can enhance the resistance of plants, the protective mechanism of nanoselenium is still not known under the long-term pesticide stress in tea trees. In this study, we investigated the potential effects of foliar application of nanoselenium for a two-year field experiment on tea plants under pesticide-induced oxidative stress. Compared to control, nano-Se (10 mg/L) markedly enhanced the protein, soluble sugar, carotenoid, tea polyphenols, and catechins contents. High levels of theanine, glutamic acid, proline, and arginine were found to be induced most likely by adjusting the GS-GOGAT cycle. Se-supplementation may promote tea leaves' secondary metabolism, thus increasing the accumulation of total phenols and flavonoids (apigenin, kaempferol, quercetin, myricetin, and rutin). It also minimized the accumulation of malondialdehyde, hydrogen peroxide, and superoxide anion by activating the antioxidants enzymes including in the AsA-GSH cycle. Selenium-rich tea also showed better fragrance and flavor. In summary, nano-Se can ameliorate the nutrients quality and abiotic stresses resistance of crops.
Collapse
Affiliation(s)
- Dong Li
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, China
| | - Chunran Zhou
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, China
| | - Nan Zou
- College of Plant Protection, Shandong Agricultural University, Shandong, 271000, China
| | - Yangliu Wu
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, China
| | - Jingbang Zhang
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, China
| | - Quanshun An
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, China
| | - Jia-Qi Li
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, China
| | - Canping Pan
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, China.
| |
Collapse
|