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Wang Y, Zhou L, Chen T, You L, Shi X, Liu X, Zheng S, Jiang J, Ke Y, Xu G. Screening strategy for 1210 exogenous chemicals in serum by two-dimensional liquid chromatography-mass spectrometry. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023:121914. [PMID: 37257806 DOI: 10.1016/j.envpol.2023.121914] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 05/24/2023] [Accepted: 05/26/2023] [Indexed: 06/02/2023]
Abstract
Humans are at risk of exogenous exposure to exogenous chemicals. Challenges exist for the comprehensive monitoring of residues with different physical and chemical properties in serum. Here, an on-line two-dimensional liquid chromatography (2D-LC) - high resolution mass spectrometry system (HRMS) was developed, expanding the range of the partition coefficient in octanol/water of the residue analysis from -8 to 12. A high-coverage serum residue screening strategy was further designed by integrating 2D-LC system with HRMS full MS/data independent acquisition and automatic spectral library searching. This strategy enables to simultaneously screen 1210 pesticides, veterinary/human drugs, other chemical pollutants and their metabolites in serum with a single analysis. Method validation showed 92% and 81% of 1022 residues spiked in serum could be detected at 50 ng/mL and 5 ng/mL, respectively. The developed method was applied to the analysis of 24 separately pooled serum samples, 58 suspect residues were found, some of them were detected at high frequencies over than 50%. Among them, 4,6-Dinitro-O-cresol and probable carcinogenic folpet are highly toxic, and cimaterol is banned in China. Collectively, this study developed a 2D-LC-HRMS -based screening strategy for screening pesticides, veterinary/human drugs, and other chemical pollutants in serum, it is helpful for studying the effect of exogenous exposures on human health.
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Affiliation(s)
- Yuting Wang
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Lina Zhou
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China; Liaoning Province Key Laboratory of Metabolomics, Dalian, China.
| | - Tiantian Chen
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Lei You
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Xianzhe Shi
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China; Liaoning Province Key Laboratory of Metabolomics, Dalian, China.
| | - Xinyu Liu
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China; Liaoning Province Key Laboratory of Metabolomics, Dalian, China.
| | - Sijia Zheng
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Jie Jiang
- Chemical Analysis & Physical Testing Institute, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China.
| | - Yuebin Ke
- Key Laboratory of Molecular Epidemiology of Shenzhen, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China.
| | - Guowang Xu
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Liaoning Province Key Laboratory of Metabolomics, Dalian, China.
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2
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Maral M, Erdem A. Carbon Nanofiber-Ionic Liquid Nanocomposite Modified Aptasensors Developed for Electrochemical Investigation of Interaction of Aptamer/Aptamer-Antisense Pair with Activated Protein C. BIOSENSORS 2023; 13:bios13040458. [PMID: 37185533 PMCID: PMC10136435 DOI: 10.3390/bios13040458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 03/27/2023] [Accepted: 03/28/2023] [Indexed: 05/17/2023]
Abstract
Selective and sensitive detection of human activated protein C (APC) was performed herein by using carbon nanofiber (CNF) and ionic liquid (IL) composite modified pencil graphite electrode (PGE) and electrochemical impedance spectroscopy (EIS) technique. A carbon nanomaterial-based electrochemical aptasensor was designed and implemented for the first time in this study for the solution-phase interaction of DNA-Apt with its cognate protein APC as well as APC inhibitor aptamer-antidote pair. The applicability of this assay developed for the determination of APC in fetal bovine serum (FBS) and its selectivity against different proteins (protein C, thrombin, bovine serum albumin) was also examined. CNF-IL modified aptasensor specific to APC provided the detection limit as 0.23 μg/mL (equal to 3.83 nM) in buffer medium and 0.11 μg/mL (equal to 1.83 nM) in FBS. The duration of the proposed assay from the point of electrode modification to the detection of APC was completed within only 55 min.
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Affiliation(s)
- Meltem Maral
- Department of Material Science and Engineering, The Institute of Natural and Applied Sciences, Ege University, Bornova, 35100 Izmir, Turkey
- Analytical Chemistry Department, Faculty of Pharmacy, Ege University, Bornova, 35100 Izmir, Turkey
| | - Arzum Erdem
- Department of Material Science and Engineering, The Institute of Natural and Applied Sciences, Ege University, Bornova, 35100 Izmir, Turkey
- Analytical Chemistry Department, Faculty of Pharmacy, Ege University, Bornova, 35100 Izmir, Turkey
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3
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Dong S, He K, Yang J, Shi Q, Guan L, Chen Z, Feng J. A simple mesoporous silica Nanoparticle-based aptamers SERS sensor for the detection of acetamiprid. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 283:121725. [PMID: 35985229 DOI: 10.1016/j.saa.2022.121725] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/29/2022] [Accepted: 08/04/2022] [Indexed: 06/15/2023]
Abstract
In this study, we developed a novel, rapid, simple, and sensitive nano sensor based on the controlled release of 4-Aminothiophenol (4-ATP) signal molecules from aptamers (Apts) modified aminated mesoporous silica nanoparticles (MSNs-NH2) for the quantitative detection of acetamiprid (ACE). Firstly, we synthesized the positively charged MSNs-NH2 by one-pot method, then loaded 4-ATP signal molecules into the pore, and finally electrostatically adsorbed the Apts onto the MSNs-NH2, which acts as a gate to control the release of signal molecules. When ACE is added to the system, ACE preferentially and specifically binds to Apts, so the gate opens and 4-ATP signal molecules are released from the pore. Meanwhile, the silver-loaded mesoporous silica nanoparticles (Ag@SiO2) were prepared by one-pot method as surface-enhanced Raman spectroscopy (SERS) substrate to amplify the signal. The intensity of 4-ATP signal molecules at 1433 cm-1 position was observed to has a linear relationship with the concentration of ACE by SERS detection. Under the optimized detection conditions, a linear correlation was observed in the range of 5-60 ng/mL (R2 = 0.99749), and the limit of detection (LOD) was 2.66 ng/mL. The method has high sensitivity, good selectivity and reproducibility, and can be used for actual sample analysis with the recovery rate of 96.24-103.6 %. This study provides a reference for the rapid and convenient detection of ACE in agricultural products.
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Affiliation(s)
- Sa Dong
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, China.
| | - Kangli He
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, China
| | - Jinghan Yang
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, China
| | - Qiuyun Shi
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, China
| | - Lingjun Guan
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, China
| | - Zhiyang Chen
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, China
| | - Jianguo Feng
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, China.
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4
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Gu Y, Li Q, Yin M, Yang D, Yang Y. A super-hydrophobic perfluoropolyether coated polytetrafluoroethylene sheets substrate for detection of acetamiprid surface-enhanced Raman spectroscopy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 278:121373. [PMID: 35576838 DOI: 10.1016/j.saa.2022.121373] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 05/04/2022] [Accepted: 05/09/2022] [Indexed: 06/15/2023]
Abstract
In this paper, a hydrophobic substrate as concentrators including an inner layer of polytetrafluoroethylene (PTFE) and an outer layer covered a thin layer of perfluoropolyether (PFPE) was constructed to achieve a higher sensitivity for acetamiprid (AC) SERS detection. The condensation effect of the PTFE-PFPE hydrophobic substrate-induced aggregation of gold nanoparticles (Au NPs) result ''hot spots'' for SERS. The hydrophobic substrate is better reproducibility (RSD < 5%) compared with that on a conventional silicon wafer. A further application of the hydrophobic substrate was demonstrated by the detection of AC in tea samples within a detection range of 0.03 mg/L to 3 mg/L. The hydrophobic substrate eliminates the problem of solution diffusion to avoid the "coffee ring" effect (When a droplet adheres to a solid surface, the suspended molecular particles usually deposit on the edge of the droplet to form a ring).
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Affiliation(s)
- Yi Gu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Qiulan Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Mengjia Yin
- Yunnan Lunyang Technology Co., Ltd, Kunming 650032, Yunnan Province, China
| | - Dezhi Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China.
| | - Yaling Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China.
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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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Xiu F, Lu Y, Qi Y, Wang Y, He J. Ultrasensitive and practical chemiluminescence sensing pesticide residue acetamiprid in agricultural products and environment: Combination of synergistically coupled co-amplifying signal and smart interface engineering. Talanta 2021; 235:122811. [PMID: 34517668 DOI: 10.1016/j.talanta.2021.122811] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 08/03/2021] [Accepted: 08/16/2021] [Indexed: 11/25/2022]
Abstract
Practical detection of single-component pesticide residue at ultra-low concentrations in agricultural products and environment is very important for assessment of environmental risks and protection of human health. Herein, a practical and highly sensitive chemiluminescence (CL) sensing acetamiprid in agricultural products and environmental media was constructed based on the synergistic co-catalysis of graphene oxide (GO)/gold nanoparticles (AuNPs) nanocomposites for luminol CL reaction and the smart interface engineering. ss-DNA could inhibit co-catalysis of GO/AuNPs for luminol CL reaction. Once acetamiprid was added, aptamer conformation changed in dimension and synergistically catalytic amplification signal of GO/AuNPs was restored significantly. The limit of detection was 8.9 pM. High sensitivity could be due to strong signal amplification from synergistic catalysis of GO/AuNPs for CL reaction and perfect regulation of composite interface by DNA dimension. Moreover, the used GO/AuNPs could be stably stored for six months, which was superior to previously reported AuNPs (only half a month). The analysis exhibited excellent selectivity for acetamiprid. The detection results for real samples confirmed reliability in practical application. This analysis is an extremely useful method for monitoring pesticide residues in environment and agricultural products. Synergetic co-catalysis of GO/AuNPs and ingenious interface engineering provide important ideas for other biosensors.
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Affiliation(s)
- Furong Xiu
- College of Geology and Environment, Xi'an University of Science and Technology, Xi'an, 710054, China
| | - Yongwei Lu
- College of Geology and Environment, Xi'an University of Science and Technology, Xi'an, 710054, China
| | - Yingying Qi
- College of Geology and Environment, Xi'an University of Science and Technology, Xi'an, 710054, China.
| | - Yuan Wang
- College of Geology and Environment, Xi'an University of Science and Technology, Xi'an, 710054, China
| | - Jiahuan He
- College of Geology and Environment, Xi'an University of Science and Technology, Xi'an, 710054, China
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7
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Sergazina M, Vazquez L, Llompart M, Dagnac T. Occurrence of Fungicides in Vineyard and the Surrounding Environment. Molecules 2021; 26:molecules26206152. [PMID: 34684732 PMCID: PMC8537801 DOI: 10.3390/molecules26206152] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 10/05/2021] [Accepted: 10/06/2021] [Indexed: 11/21/2022] Open
Abstract
Seventeen fungicides were determined in different matrices from vineyard areas, including vine leaves, soils, grapes and water, using gas chromatography coupled to tandem mass spectrometry (GC-MS/MS). For leaf analysis, ultrasound-assisted extraction (UAE) was performed evaluating different solvents. UAE was compared with other extraction techniques such as vortex extraction (VE) and matrix solid-phase dispersion (MSPD). The performance of the UAE method was demonstrated on vine leaf samples and on other types of samples such as tea leaves, underlining its general suitability for leaf crops. As regards other matrices, soils were analyzed by UAE and microwave-assisted extraction (MAE), grapes by UAE and waters by SPE using cork as the sorbent. The proposed method was applied to 17 grape leaf samples in which 14 of the target fungicides were detected at concentrations up to 1000 μg g−1. Furthermore, the diffusion and transport of fungicides was demonstrated not only in crops but also in environmental matrices.
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Affiliation(s)
- Meruyert Sergazina
- CRETUS, Department of Analytical Chemistry, Nutrition and Food Science, University of Santiago de Compostela, E-15782 Santiago de Compostela, Spain; (M.S.); (L.V.)
- Department of Chemistry, Institute of Natural Science and Geography, Abai Kazakh National Pedagogical University, Almaty 050010, Kazakhstan
| | - Lua Vazquez
- CRETUS, Department of Analytical Chemistry, Nutrition and Food Science, University of Santiago de Compostela, E-15782 Santiago de Compostela, Spain; (M.S.); (L.V.)
| | - Maria Llompart
- CRETUS, Department of Analytical Chemistry, Nutrition and Food Science, University of Santiago de Compostela, E-15782 Santiago de Compostela, Spain; (M.S.); (L.V.)
- Correspondence: (M.L.); (T.D.)
| | - Thierry Dagnac
- Galician Agency for Food Quality—Agronomic Research Centre (AGACAL-CIAM), Unit of Organic Contaminants, Apartado 10, E-15080 A Coruña, Spain
- Correspondence: (M.L.); (T.D.)
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8
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Watanabe E. Review of sample preparation methods for chromatographic analysis of neonicotinoids in agricultural and environmental matrices: From classical to state-of-the-art methods. J Chromatogr A 2021; 1643:462042. [PMID: 33761434 DOI: 10.1016/j.chroma.2021.462042] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 03/03/2021] [Accepted: 03/04/2021] [Indexed: 11/16/2022]
Abstract
This review specifically examines the development of sample preparation methods for residue analyses of neonicotinoid insecticides in agricultural and environmental matrices. Pesticide residue analysis is fundamentally important to ensure the safety of foods and processed foods of plant and animal origin, and to preserve the environment, particularly soil and water. For the development of pesticide residue analysis, the sample preparation process is an important key to maximizing the analytical performance of highly sensitive and accurate chromatographic instruments and to acquiring reliable analytical results. This review outlines sample preparation methods that have been proposed to date for extraction of neonicotinoids that might remain in a complicated sample matrix in quantitatively trace amounts, and for cleaning up, to the greatest extent possible, the interfering components that coexist in the sample extract.
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Affiliation(s)
- Eiki Watanabe
- Chemical Analysis Unit, Division of Hazardous Chemicals, Institute for Agro-Environmental Sciences, National Agriculture and Food Research Organization (NARO), Tsukuba 305-8604, Japan.
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9
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Heshmati A, Mehri F, Mousavi Khaneghah A. Simultaneous multi-determination of pesticide residues in black tea leaves and infusion: a risk assessment study. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:13725-13735. [PMID: 33197000 DOI: 10.1007/s11356-020-11658-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 11/12/2020] [Indexed: 06/11/2023]
Abstract
This study aimed to investigate the concentration of 33 pesticide residues in 60 black tea samples collected from Iran, determine their transfer rate, and assess their health risk during brewing. Pesticide extraction and analysis were performed by using a quick, easy, cheap, effective, rugged, and safe (QuEChERS) method and gas chromatography/tandem mass spectrometry (GC-MS/MS), respectively. The limits of detection (LOD) and the limits of quantification (LOQ) of pesticides were ranged 0.1-7.26 and 0.8-24 μg/kg for dried tea leaves and 0.03-3.1 and 0.09-10 μg/L for the tea infusion, respectively. The levels of pesticide residue in 52 (86.67%) out of 60 tea samples were above the LOD (0.1-7.26 μg/kg). Twenty four (40%) of the samples contained pesticides in a concentration higher than the maximum residue limit (MRL) set by the European Commission (EC). Seven out of 33 validated pesticides were detected in dried tea leaf samples that only four of seven, including buprofezin, chlorpyrifos, hexaconazole, and triflumizole, were transferred into tea infusion, demonstrating that the concentrations of pesticides in infusion were raised during brewing. The risk assessment study for detected pesticides in the tea infusion samples indicated that this beverage consumption was safe for consumers, while the mean residue of some pesticides in positive samples was higher than the MRL; therefore, periodic control of these pesticides should be regularly implemented.
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Affiliation(s)
- Ali Heshmati
- Nutrition Health Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Fereshteh Mehri
- Nutrition Health Research Center, Hamadan University of Medical Sciences, Hamadan, Iran.
| | - Amin Mousavi Khaneghah
- Department of Food Science, Faculty of Food Engineering, University of Campinas (UNICAMP), Rua Monteiro Lobato, 80. Caixa Postal: 6121, Campinas, São Paulo, CEP: 13083-862, Brazil.
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10
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Chen X, Lin H, Xu T, Lai K, Han X, Lin M. Cellulose nanofibers coated with silver nanoparticles as a flexible nanocomposite for measurement of flusilazole residues in Oolong tea by surface-enhanced Raman spectroscopy. Food Chem 2020; 315:126276. [DOI: 10.1016/j.foodchem.2020.126276] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 01/18/2020] [Accepted: 01/20/2020] [Indexed: 12/30/2022]
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11
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Chen X, Wang D, Li J, Xu T, Lai K, Ding Q, Lin H, Sun L, Lin M. A spectroscopic approach to detect and quantify phosmet residues in Oolong tea by surface-enhanced Raman scattering and silver nanoparticle substrate. Food Chem 2020; 312:126016. [DOI: 10.1016/j.foodchem.2019.126016] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 11/07/2019] [Accepted: 12/02/2019] [Indexed: 10/25/2022]
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12
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An Electronic Nose Technology to Quantify Pyrethroid Pesticide Contamination in Tea. CHEMOSENSORS 2020. [DOI: 10.3390/chemosensors8020030] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The contamination of tea with toxic pesticides is a major concern. Additionally, because of improved detection methods, importers are increasingly rejecting contaminated teas. Here, we describe an electronic nose technique for the rapid detection of pyrethroid pesticides (cyhalothrin, bifenthrin, and fenpropathrin) in tea. Using a PEN 3 electronic nose, the text screened a group of metal oxide sensors and determined that four of them (W5S, W1S, W1W, and W2W) are suitable for the detection of the same pyrethroid pesticide in different concentrations and five of them (W5S, W1S, W1W, W2W, and W2S) are suitable for the detection of pyrethroid pesticide. The models for the determination of cyhalothrin, bifenthrin, and fenpropathrin are established by PLS method. Next, using back propagation (BP) neural network technology, we developed a three-hidden-layer model and a two-hidden-layer model to differentiate among the three pesticides. The accuracy of the three models is 96%, 92%, and 88%, respectively. The recognition accuracies of the three-hidden-layer BP neural network pattern and two-hidden-layer BP neural network pattern are 98.75% and 97.08%, respectively. Our electronic nose system accurately detected and quantified pyrethroid pesticides in tea leaves. We propose that this tool is now ready for practical application in the tea industry.
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Li Z, Huang L, Xia N, Teng J, Wei B, Peng D. Amount of
Eurotium
sp. in Chinese Liupao tea and its relationship with tea quality. J Appl Microbiol 2020; 128:1658-1668. [DOI: 10.1111/jam.14589] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 01/03/2020] [Accepted: 01/06/2020] [Indexed: 01/07/2023]
Affiliation(s)
- Z. Li
- Institute of Light Industry and Food Engineering Guangxi University Nanning China
| | - Li Huang
- Institute of Light Industry and Food Engineering Guangxi University Nanning China
| | - N. Xia
- Institute of Light Industry and Food Engineering Guangxi University Nanning China
| | - J. Teng
- Institute of Light Industry and Food Engineering Guangxi University Nanning China
| | - B. Wei
- Institute of Light Industry and Food Engineering Guangxi University Nanning China
| | - D. Peng
- Institute of Light Industry and Food Engineering Guangxi University Nanning China
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14
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Apostolou T, Loizou K, Hadjilouka A, Inglezakis A, Kintzios S. Newly Developed System for Acetamiprid Residue Screening in the Lettuce Samples Based on a Bioelectric Cell Biosensor. BIOSENSORS 2020; 10:E8. [PMID: 31991561 PMCID: PMC7168231 DOI: 10.3390/bios10020008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 01/16/2020] [Accepted: 01/21/2020] [Indexed: 11/16/2022]
Abstract
Population growth and increased production demands on fruit and vegetables have driven agricultural production to new heights. Nevertheless, agriculture remains one of the least optimized industries, with laboratory tests that take days to provide a clear result on the chemical level of produce. To address this problem, we developed a tailor-made solution for the industry that can allow multiple field tests on key pesticides, based on a bioelectric cell biosensor and the measurement of the cell membrane potential changes, according to the principle of the Bioelectric Recognition Assay (BERA). We developed a fully functional system that operates using a newly developed hardware for multiple data sources and an Android application to provide results within 3 min. The presence of acetamiprid residues caused a cell membrane hyperpolarization, which was distinguishable from the control samples. A database that classified samples Below or Above Maximum Residue Levels (MRL) was then created, based on a newly developed algorithm. Additionally, lettuce samples were analyzed with the conventional and the newly developed method, in parallel, revealing a high correlation on sample classification. Thus, it was demonstrated that the novel biosensor system could be used in the food supply chain to increase the number of tested products before they reach the market.
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Affiliation(s)
- Theofylaktos Apostolou
- EMBIO Diagnostics Ltd., Athalassas Ave 8, Strovolos, 2018 Nicosia, Cyprus; (K.L.); (A.H.); (A.I.)
| | - Konstantinos Loizou
- EMBIO Diagnostics Ltd., Athalassas Ave 8, Strovolos, 2018 Nicosia, Cyprus; (K.L.); (A.H.); (A.I.)
| | - Agni Hadjilouka
- EMBIO Diagnostics Ltd., Athalassas Ave 8, Strovolos, 2018 Nicosia, Cyprus; (K.L.); (A.H.); (A.I.)
| | - Antonios Inglezakis
- EMBIO Diagnostics Ltd., Athalassas Ave 8, Strovolos, 2018 Nicosia, Cyprus; (K.L.); (A.H.); (A.I.)
| | - Spyridon Kintzios
- Laboratory of Cell Technology, Department of Biotechnology, Agricultural University of Athens, 75 Iera Odos St., 11855 Athens, Greece;
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15
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Chen H, Li W, Guo L, Weng H, Wei Y, Guo Q. Residue, dissipation, and safety evaluation of etoxazole and pyridaben in Goji berry under open-field conditions in the China's Qinghai-Tibet Plateau. ENVIRONMENTAL MONITORING AND ASSESSMENT 2019; 191:517. [PMID: 31352622 DOI: 10.1007/s10661-019-7671-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 07/18/2019] [Indexed: 06/10/2023]
Abstract
The dissipation and residual levels of etoxazole and pyridaben in Goji berry under open field conditions were determined by using GC-NPD (gas chromatography with nitrogen and phosphorus detector) with modified QuEChERS method. At fortification levels of 0.01, 1, and 5 mg/kg in Goji berry, it was shown that recoveries were ranged from 80.40 to 100.9% with relative standard deviation of the method (RSD) for repeatability ranged from 2.20 to 4.25%. The limit of quantification (LOQ) of the method was 0.01 mg/kg. The dissipation rates of etoxazole and pyridaben were described by using first-order kinetics and its half-life, as they are 7.13 days, 5.77 days, and 5.99 days (etoxazole) and 1.02 day, 0.67 day, 1.02 day (pyridaben). The terminal residues of etoxazole and pyridaben were below the European maximum residue limit (MRL, 0.1 mg/kg) in Goji berry when measured 7 days after the final application, which suggested that the use of these insecticides was safe for humans. This study would help in providing the basic information for developing regulation to guard a safe use of etoxazole and pyridaben in Goji berry and prevent health problem from consumers.
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Affiliation(s)
- Hongyu Chen
- Academy of Agriculture and Forestry Sciences, State Key Laboratory of Plateau Ecology and Agriculture, Scientific Observing and Experimental Station of Crop Pest in Xining, Ministry of Agriculture, Key Laboratory of Agricultural Integrated Pest Management of Qinghai Province, Qinghai University, Xining, 810016, Qinghai Province, People's Republic of China
| | - Wei Li
- Academy of Agriculture and Forestry Sciences, State Key Laboratory of Plateau Ecology and Agriculture, Scientific Observing and Experimental Station of Crop Pest in Xining, Ministry of Agriculture, Key Laboratory of Agricultural Integrated Pest Management of Qinghai Province, Qinghai University, Xining, 810016, Qinghai Province, People's Republic of China
| | - Liangzhi Guo
- Academy of Agriculture and Forestry Sciences, State Key Laboratory of Plateau Ecology and Agriculture, Scientific Observing and Experimental Station of Crop Pest in Xining, Ministry of Agriculture, Key Laboratory of Agricultural Integrated Pest Management of Qinghai Province, Qinghai University, Xining, 810016, Qinghai Province, People's Republic of China
| | - Hua Weng
- Academy of Agriculture and Forestry Sciences, State Key Laboratory of Plateau Ecology and Agriculture, Scientific Observing and Experimental Station of Crop Pest in Xining, Ministry of Agriculture, Key Laboratory of Agricultural Integrated Pest Management of Qinghai Province, Qinghai University, Xining, 810016, Qinghai Province, People's Republic of China
| | - Youhai Wei
- Academy of Agriculture and Forestry Sciences, State Key Laboratory of Plateau Ecology and Agriculture, Scientific Observing and Experimental Station of Crop Pest in Xining, Ministry of Agriculture, Key Laboratory of Agricultural Integrated Pest Management of Qinghai Province, Qinghai University, Xining, 810016, Qinghai Province, People's Republic of China
| | - Qingyun Guo
- Academy of Agriculture and Forestry Sciences, State Key Laboratory of Plateau Ecology and Agriculture, Scientific Observing and Experimental Station of Crop Pest in Xining, Ministry of Agriculture, Key Laboratory of Agricultural Integrated Pest Management of Qinghai Province, Qinghai University, Xining, 810016, Qinghai Province, People's Republic of China.
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Yu Y, You J, Sun Z, Li G, Ji Z, Zhang S, Zhou X. Determination of residual organophosphorus thioester pesticides in agricultural products by chemical isotope-labelling liquid chromatography-tandem mass spectrometry coupled with in-syringe dispersive solid phase clean-up and in situ cleavage. Anal Chim Acta 2019; 1055:44-55. [DOI: 10.1016/j.aca.2018.12.039] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 12/15/2018] [Accepted: 12/17/2018] [Indexed: 01/03/2023]
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17
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Fang Q, Zu Q, Hua X, Lv P, Lin W, Zhou D, Xu Z, Fan J, Li X, Cao H. Quantitative Determination of Acetamiprid in Pollen Based on a Sensitive Enzyme-Linked Immunosorbent Assay. Molecules 2019; 24:molecules24071265. [PMID: 30939790 PMCID: PMC6479566 DOI: 10.3390/molecules24071265] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 03/27/2019] [Accepted: 03/30/2019] [Indexed: 01/16/2023] Open
Abstract
A sensitive biotinylated indirect competitive enzyme-linked immunosorbent assay (Bic-ELISA) was developed to detect acetamiprid pesticides in pollen, based on the heterogeneous coating antigen and biotinylated anti-acetamiprid monoclonal antibody. Under optimized experimental conditions, the detection limit for the Bic-ELISA was 0.17 ng/mL and the linear range was 0.25–25 ng/mL. The cross-reactivities could be regarded as negligible for the biotinylated antibodies with their analogues except for thiacloprid (1.66%). Analyte recoveries for extracts of spiked pollen (camellia pollen, lotus pollen, rape pollen) ranged from 81.1% to 108.0%, with intra-day relative standard deviations (RSDs) of 4.8% to 10.9%, and the average reproducibility was 85.4% to 110.9% with inter-assay and inter-assay RSDs of 6.1% to 11.7%. The results of Bic-ELISA methods for the Taobao’s website samples were largely consistent with HPLC-MS/MS. Therefore, the established Bic-ELISA methods would be conducive to the monitoring of acetamiprid in pollen.
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Affiliation(s)
- Qingkui Fang
- School of Plant Protection, Anhui Agricultural University, Hefei 230036, China.
- Key Laboratory of Biology and Sustainable Management of Plant Diseases and Pests of Anhui Higher Education Institutes, Anhui Agricultural University, Hefei 230036, China.
| | - Quan Zu
- School of Plant Protection, Anhui Agricultural University, Hefei 230036, China.
- Key Laboratory of Biology and Sustainable Management of Plant Diseases and Pests of Anhui Higher Education Institutes, Anhui Agricultural University, Hefei 230036, China.
| | - Xiude Hua
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China.
| | - Pei Lv
- School of Resource & Environment, Anhui Agricultural University, Hefei 230036, China.
| | - Wanwen Lin
- School of Plant Protection, Anhui Agricultural University, Hefei 230036, China.
| | - Dahe Zhou
- School of Plant Protection, Anhui Agricultural University, Hefei 230036, China.
| | - Zihan Xu
- School of Plant Protection, Anhui Agricultural University, Hefei 230036, China.
| | - Jiarui Fan
- School of Plant Protection, Anhui Agricultural University, Hefei 230036, China.
| | - Xiaohan Li
- School of Plant Protection, Anhui Agricultural University, Hefei 230036, China.
| | - Haiqun Cao
- School of Plant Protection, Anhui Agricultural University, Hefei 230036, China.
- Key Laboratory of Biology and Sustainable Management of Plant Diseases and Pests of Anhui Higher Education Institutes, Anhui Agricultural University, Hefei 230036, China.
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18
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Feng X, Li C, Liang A, Luo Y, Jiang Z. Doped N/Ag Carbon Dot Catalytic Amplification SERS Strategy for Acetamiprid Coupled Aptamer with 3,3'-Dimethylbiphenyl-4,4'-diamine Oxidizing Reaction. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E480. [PMID: 30934552 PMCID: PMC6474095 DOI: 10.3390/nano9030480] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 03/15/2019] [Accepted: 03/19/2019] [Indexed: 12/17/2022]
Abstract
The as-prepared co-doped N/Ag carbon dot (CDNAg) has strong catalysis of H₂O₂ oxidation of 3,3'-dimethylbiphenyl-4,4'-diamine (DBD). It forms an oxidation product (DBDox) with surface-enhanced Raman scattering (SERS) activity at 1605 cm-1 in the silver nanosol substrate, and a CDNAg catalytic amplification with SERS analytical platform can be structured based on aptamer (Apt) with the DBD oxidizing reaction. For example, the aptamer (Apt) of acetamiprid (ACT) can be adsorbed on the surface of CDNAg, resulting in inhibited catalytic activity, the reduced generation of DBDox, and a weakened SERS intensity. When the target molecule ACT was added, it formed a stable Apt-ACT complex and free CDNAg that restored catalytic activity and linearly enhanced the SERS signal. Based on this, we proposed a new quantitative SERS analysis method for the determination of 0.01⁻1.5 μg ACT with a detection limit of 0.006 μg/L.
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Affiliation(s)
- Xiaozhen Feng
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin 541004, China.
- School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin 541004, China.
| | - Chongning Li
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin 541004, China.
| | - Aihui Liang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin 541004, China.
| | - Yanghe Luo
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin 541004, China.
- School of Food and Bioengineering, Hezhou University, Hezhou 542899, China.
| | - Zhiliang Jiang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin 541004, China.
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19
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Huang Y, Shi T, Luo X, Xiong H, Min F, Chen Y, Nie S, Xie M. Determination of multi-pesticide residues in green tea with a modified QuEChERS protocol coupled to HPLC-MS/MS. Food Chem 2019; 275:255-264. [DOI: 10.1016/j.foodchem.2018.09.094] [Citation(s) in RCA: 114] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 08/31/2018] [Accepted: 09/14/2018] [Indexed: 11/17/2022]
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20
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Fan K, Kang W, Qu S, Li L, Qu B, Lu L. A label-free and enzyme-free fluorescent aptasensor for sensitive detection of acetamiprid based on AT-rich dsDNA-templated copper nanoparticles. Talanta 2019; 197:645-652. [PMID: 30771988 DOI: 10.1016/j.talanta.2019.01.069] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 01/15/2019] [Accepted: 01/23/2019] [Indexed: 01/08/2023]
Abstract
A label-free and enzyme-free aptasensor for sensitive assay of acetamiprid has been established using AT-rich double-stranded (ds) DNA-templated copper nanoparticles (CuNPs) as fluorescent probe. In this work, two hairpin DNA, HP1 and HP2, were elaborately designed with AT-rich DNA sequences in their loops. The aptamer of acetamiprid was located at the 3'-terminal of HP1, which was caged in the stem of HP1. Upon the addition of acetamiprid, the aptamer could combine with acetamiprid to form a target/aptamer complex, and thus its free 5'-terminal was released. Subsequently, the protruded 3'-terminal of HP2 could hybridize with the free 5'-terminal of HP1 to form a stable AT-rich dsDNA. When it interacted with Cu2+ and ascorbic acid (AA), the AT-rich dsDNA/CuNPs were generated with strong fluorescence, offering a "switch-on" detection of acetamiprid. The developed strategy could high selectively detect acetamiprid at the concentration as low as 2.37 nM. Moreover, the possibility of this strategy for the food sample analysis was also investigated. The obtained results demonstrate that the developed strategy has a promising application potential for acetamiprid assay in food safety fields.
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Affiliation(s)
- Kaimei Fan
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, China
| | - Wukui Kang
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, China
| | - Shuaifeng Qu
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, China
| | - Long Li
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, China
| | - Baohan Qu
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, China
| | - Lihua Lu
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, China.
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21
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Zhang X, Zhao Y, Cui X, Wang X, Shen H, Chen Z, Huang C, Meruva N, Zhou L, Wang F, Wu L, Luo F. Application and enantiomeric residue determination of diniconazole in tea and grape and apple by supercritical fluid chromatography coupled with quadrupole-time-of-flight mass spectrometry. J Chromatogr A 2018; 1581-1582:144-155. [DOI: 10.1016/j.chroma.2018.10.051] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Accepted: 10/29/2018] [Indexed: 01/30/2023]
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22
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Drabova L, Alvarez-Rivera G, Suchanova M, Schusterova D, Pulkrabova J, Tomaniova M, Kocourek V, Chevallier O, Elliott C, Hajslova J. Food fraud in oregano: Pesticide residues as adulteration markers. Food Chem 2018; 276:726-734. [PMID: 30409655 DOI: 10.1016/j.foodchem.2018.09.143] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 09/04/2018] [Accepted: 09/23/2018] [Indexed: 12/25/2022]
Abstract
Oregano, a widely used and popular herb, is particularly vulnerable to fraud. Less valued plants, adulterants that are often used for dilution, may introduce into this commodity additional contaminants such as pesticide residues. In this study, more than 400 pesticides were screened in a representative set of 42 genuine and 34 adulterated dried oregano samples collected from various locations across Europe. The results obtained by advanced mass spectrometry-based methods, showed, that some pesticide residues could be detected in virtually all tested samples, nevertheless, on average, higher contamination was found in the adulterated oregano samples. Increased incidence of insecticides such as cyfluthrin, permethrin and cyhalothrin was typical for these samples, moreover, pyriproxyfen was detected exclusively in adulterated samples. Thus, based on a critical assessment of pesticide profiles, suspected adulterated oregano samples can be selected for follow up authenticity testing.
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Affiliation(s)
- Lucie Drabova
- University of Chemistry and Technology, Prague, Faculty of Food and Biochemical Technology, Department of Food Analysis and Nutrition, Technicka 3, 166 28 Prague, Czech Republic
| | - Gerardo Alvarez-Rivera
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, Northern Ireland, United Kingdom
| | - Marie Suchanova
- University of Chemistry and Technology, Prague, Faculty of Food and Biochemical Technology, Department of Food Analysis and Nutrition, Technicka 3, 166 28 Prague, Czech Republic
| | - Dana Schusterova
- University of Chemistry and Technology, Prague, Faculty of Food and Biochemical Technology, Department of Food Analysis and Nutrition, Technicka 3, 166 28 Prague, Czech Republic
| | - Jana Pulkrabova
- University of Chemistry and Technology, Prague, Faculty of Food and Biochemical Technology, Department of Food Analysis and Nutrition, Technicka 3, 166 28 Prague, Czech Republic
| | - Monika Tomaniova
- University of Chemistry and Technology, Prague, Faculty of Food and Biochemical Technology, Department of Food Analysis and Nutrition, Technicka 3, 166 28 Prague, Czech Republic
| | - Vladimir Kocourek
- University of Chemistry and Technology, Prague, Faculty of Food and Biochemical Technology, Department of Food Analysis and Nutrition, Technicka 3, 166 28 Prague, Czech Republic
| | - Olivier Chevallier
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, Northern Ireland, United Kingdom
| | - Christopher Elliott
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, Northern Ireland, United Kingdom
| | - Jana Hajslova
- University of Chemistry and Technology, Prague, Faculty of Food and Biochemical Technology, Department of Food Analysis and Nutrition, Technicka 3, 166 28 Prague, Czech Republic.
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23
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Huang YW, Lee HK, Shih HK, Jen JF. A sublimate sorbent for stir-bar sorptive extraction of aqueous endocrine disruptor pesticides for gas chromatography-electron capture detection. J Chromatogr A 2018; 1564:51-58. [DOI: 10.1016/j.chroma.2018.06.018] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 06/04/2018] [Accepted: 06/05/2018] [Indexed: 01/13/2023]
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24
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Xu X, Guo Y, Wang L, He K, Guo Y, Wang X, Gunasekaran S. Hapten-Grafted Programmed Probe as a Corecognition Element for a Competitive Immunosensor to Detect Acetamiprid Residue in Agricultural Products. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:7815-7821. [PMID: 29944365 DOI: 10.1021/acs.jafc.8b02487] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We have developed an effective competitive electrochemical immunosensor assay based on hapten-grafted programmed probe (HGPP) as a corecognition element for highly sensitive and selective detection of acetamiprid. Starting with the synthesis of hapten, HGPP was prepared using carboxyl group in the hapten and amino group in the 5' end of the programmed probe through covalent conjugation. Acetamiprid present in samples competes with HGPP to bind with capture antibody on the electrodes by specific recognition interaction. Methylene blue probe (MBP) was used as the electrochemical redox probe to capture the hybridized HGPP on the electrodes. The competitive reaction changes in accordance with the quantity of the target acetamiprid in the sample, as the amounts of the hybridized HGPP and the immobilized antibody are constant, i.e., the more acetamiprid samples are added, the less MBP is combined on the electrodes. In the optimal conditions, thus, biosensor output showed a linear relationship from 5 to 105 ng L-1 for the acetamiprid assay with a detecting limit of 3.2 ng L-1. The biosensor was successful in quantifying the amount of acetamiprid in spiked strawberry and cabbage extracts. This competitive immunosensor assay represents a rapid and sensitive technology for acetamiprid assay or other small molecule targets in food.
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Affiliation(s)
- Xiahong Xu
- Institute of Quality and Standard for Agro-Products, State Key Lab Breeding Base for Zhejiang Sustainable Plant Pest Control , Zhejiang Academy of Agricultural Sciences , No. 198 Shiqiao Road , Hangzhou 310021 , China
| | - Yuna Guo
- Institute of Quality and Standard for Agro-Products, State Key Lab Breeding Base for Zhejiang Sustainable Plant Pest Control , Zhejiang Academy of Agricultural Sciences , No. 198 Shiqiao Road , Hangzhou 310021 , China
| | - Liu Wang
- Institute of Quality and Standard for Agro-Products, State Key Lab Breeding Base for Zhejiang Sustainable Plant Pest Control , Zhejiang Academy of Agricultural Sciences , No. 198 Shiqiao Road , Hangzhou 310021 , China
| | - Kaiyu He
- Institute of Quality and Standard for Agro-Products, State Key Lab Breeding Base for Zhejiang Sustainable Plant Pest Control , Zhejiang Academy of Agricultural Sciences , No. 198 Shiqiao Road , Hangzhou 310021 , China
| | - Yirong Guo
- Institute of Pesticide and Environmental Toxicology , Zhejiang University , 866 Yuhangtang Road , Hangzhou 310029 , Zhejiang P rovince China
| | - Xinquan Wang
- Institute of Quality and Standard for Agro-Products, State Key Lab Breeding Base for Zhejiang Sustainable Plant Pest Control , Zhejiang Academy of Agricultural Sciences , No. 198 Shiqiao Road , Hangzhou 310021 , China
| | - Sundaram Gunasekaran
- Institute of Quality and Standard for Agro-Products, State Key Lab Breeding Base for Zhejiang Sustainable Plant Pest Control , Zhejiang Academy of Agricultural Sciences , No. 198 Shiqiao Road , Hangzhou 310021 , China
- College of Agricultural and Life Sciences , University of Wisconsin-Madison , Madison , Wisconsin 53706 , United States
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25
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Salamzadeh J, Shakoori A, Moradi V. Occurrence of multiclass pesticide residues in tomato samples collected from different markets of Iran. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2018; 16:55-63. [PMID: 29983989 PMCID: PMC6021478 DOI: 10.1007/s40201-018-0296-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Accepted: 01/16/2018] [Indexed: 05/24/2023]
Abstract
BACKGROUND Pesticides are a reason for popular concern due to their possible unfavorable results on human safety. Most pesticide residues are present in food owing to the direct application of a pesticide to a crop. The aims of this study were; development a multiresidue method for analysis of 81 pesticides in tomato using GC/MS, and detection and quantitation of the studied pesticides in tomato samples gathered from various stores of Iran. METHODS The pesticides were assessed concurrently in a single run applying GC/MS after extraction with QuEChERS method. Homogenized tomato samples were weighed into centrifuge tubes. The studied pesticides were extracted using acetonitrile, followed by the addition of a mixture of anhydrous magnesium sulfate and sodium acetate. In order to remove excess water and other components of tomato a combination of primary secondary amine and magnesium sulfate was applied, and then the extracted components were analyzed by GC-MS. RESULTS The calibration curves for all analytes were linear in the range of 20-200 ng/g with a determination coefficient (R2) in the range between 0.993 and 0.999. The LODs and LOQs were in the range between 2.5-6.7 and 7.5-20 ng/g respectively, and the mean recoveries obtained for three fortification levels (25,50 and 100 ng/g -five replicates each) were 72-116% with RSD < 20%. Six residues were found in 31 (20.7%) samples. Iprodione was the most common detected residues (6.0%), followed by permethrine (4.7%), esfenvalerate (4.7%), chlorpyrifos (3.3%), diazinon (2.0%), and penconazole (1.3%). CONCLUSIONS Among the detected pesticides, only Iprodione, permethrine, chlorpyrifos and diazinon are registered for tomato production in Iran. With exception of Chlorpyrifos and diazinon the concentrations of iprodione and permethrine were found below the maximum residue levels (MRLs) established by Iranian National Standard Organization (INSO). Esfenvalerate and penconazole are not registered for tomato production in Iran. Therefore, it is necessary to control and management of their residues in tomato.
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Affiliation(s)
- Jamshid Salamzadeh
- Food Safety Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Department of Clinical Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Attaollah Shakoori
- Food Safety Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Vice-Chancellor for Food and Drug Affairs, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Vahideh Moradi
- Vice-Chancellor for Food and Drug Affairs, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Department of Food Science and Technology, Science and Research Branch, Islamic Azad University, Tehran, Iran
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26
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Bahreyni A, Yazdian-Robati R, Ramezani M, Abnous K, Taghdisi SM. Fluorometric aptasensing of the neonicotinoid insecticide acetamiprid by using multiple complementary strands and gold nanoparticles. Mikrochim Acta 2018; 185:272. [DOI: 10.1007/s00604-018-2805-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Accepted: 04/13/2018] [Indexed: 01/13/2023]
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27
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Wang C, Chen D, Wang Q, Wang Q. Aptamer-based Resonance Light Scattering for Sensitive Detection of Acetamiprid. ANAL SCI 2018; 32:757-62. [PMID: 27396657 DOI: 10.2116/analsci.32.757] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In this work, an aptasensor-based resonance light-scattering (RLS) method was developed for the sensitive and selective detection of acetamiprid. The ABA (acetamiprid binding aptamer)-stabilized gold nanoparticles (ABA-AuNPs) were used as a probe. Highly specific single-strand DNA (ssDNA, i.e, aptamers) that bind to acetamiprid with high affinity were employed to discriminate other pesticides, such as edifenphos, kanamycin, metribuzin et. al. The sensing approach is based on a specific interaction between acetamiprid and ABA. Aggregation of AuNPs was specifically induced by the desorption of the ABA from the surface of AuNPs, which caused the RLS signal intensity to be enhanced at 700 nm. The alteration of AuNPs' aggregation has been successfully optimized by controlling several conditions. Under the optimal conditions, the RLS intensity changes (I/I0) of AuNPs were linearly correlated with the acetamiprid concentration in the range of 0 - 100 nM. The detection limit is 1.2 nM (3σ). This method had also been used for acetamiprid detection in lake water samples.
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Affiliation(s)
- Chengke Wang
- College of Food and Biological Engineering, Jiangsu University
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28
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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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29
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Chen H, Gao G, Chai Y, Ma G, Hao Z, Wang C, Liu X, Lu C. Multiresidue Method for the Rapid Determination of Pesticide Residues in Tea Using Ultra Performance Liquid Chromatography Orbitrap High Resolution Mass Spectrometry and In-Syringe Dispersive Solid Phase Extraction. ACS OMEGA 2017; 2:5917-5927. [PMID: 30023756 PMCID: PMC6044959 DOI: 10.1021/acsomega.7b00863] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 08/30/2017] [Indexed: 06/08/2023]
Abstract
A method based on in-syringe dispersive solid phase extraction (IS-D-SPE) and ultra performance liquid chromatography Orbitrap high resolution mass spectrometry for the multiresidue analysis of 117 pesticides in tea was developed. Full scan mode was acquired over an m/z range of 100-800 with Orbitrap resolution at 70000, followed by full scan/dd-MS2 mode for confirmation. The identification criteria of retention time and mass accuracy tolerance was ±0.20 min and ±5.0 ppm, respectively. MS/MS fragment ions obtained dd-MS2 were necessary to identify the pesticides with the same molecular mass weight. The IS-D-SPE technique involved a mixture of 200 mg PSA, 100 mg C18, and 15 mg multiwalled carbon nanotubes for the cleanup of tea matrix. Good linearity (R2 > 0.99) for 117 pesticides was obtained. Satisfactory recoveries in the range of 70-120% were obtained for 105 pesticides, while intraday and interday precisions were below 20%. Limits of quantification were generally 10 μg kg-1. Finally, this method was employed to analyze 117 pesticides in 70 tea samples.
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30
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Yin G, Athanassiadis I, Bergman Å, Zhou Y, Qiu Y, Asplund L. A refined method for analysis of 4,4'-dicofol and 4,4'-dichlorobenzophenone. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:13307-13314. [PMID: 28386885 PMCID: PMC5434158 DOI: 10.1007/s11356-017-8956-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 03/28/2017] [Indexed: 06/07/2023]
Abstract
The acaricide, dicofol, is a well-known pesticide and partly a substitute for dichlorodiphenyltrichloroethane (DDT). Only few reports on environmental occurrence and concentrations have been reported calling for improvements. Hence, an analytical method was further developed for dicofol and dichlorobenzophenone (DCBP) to enable assessments of their environmental occurrence. Concentrated sulfuric acid was used to remove lipids and to separate dicofol from DCBP. On-column injection was used as an alternative to splitless injection to protect dicofol from thermal decomposition. By the method presented herein, it is possible to quantify dicofol and DCBP in the same samples. Arctic cod (Gadus morhua) were spiked at two dose levels and the recoveries were determined. The mean recovery for dicofol was 65% at the low dose (1 ng) and 77% at the high dose (10 ng). The mean recovery for DCBP was 99% at the low dose (9.2 ng) and 146% at the high dose (46 ng). The method may be further improved by use of another lipid removal method, e.g., gel permeation chromatography. The method implies a step forward in dicofol environmental assessments.
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Affiliation(s)
- Ge Yin
- Department of Environmental Science and Analytical Chemistry, Stockholm University, SE-10691, Stockholm, Sweden
| | - Ioannis Athanassiadis
- Department of Environmental Science and Analytical Chemistry, Stockholm University, SE-10691, Stockholm, Sweden
| | - Åke Bergman
- Department of Environmental Science and Analytical Chemistry, Stockholm University, SE-10691, Stockholm, Sweden
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China
- Swedish Toxicology Sciences Research Center, Forskargatan 20, SE-15136, Södertälje, Sweden
| | - Yihui Zhou
- Department of Environmental Science and Analytical Chemistry, Stockholm University, SE-10691, Stockholm, Sweden.
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China.
| | - Yanling Qiu
- Key Laboratory of Yangtze River Water Environment (Ministry of Education), College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China
| | - Lillemor Asplund
- Department of Environmental Science and Analytical Chemistry, Stockholm University, SE-10691, Stockholm, Sweden
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Nantia EA, Moreno-González D, Manfo FP, Gámiz-Gracia L, García-Campaña AM. QuEChERS-based method for the determination of carbamate residues in aromatic herbs by UHPLC-MS/MS. Food Chem 2017; 216:334-41. [DOI: 10.1016/j.foodchem.2016.08.038] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 08/10/2016] [Accepted: 08/13/2016] [Indexed: 01/15/2023]
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32
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Electrochemical aptamer based assay for the neonicotinoid insecticide acetamiprid based on the use of an unmodified gold electrode. Mikrochim Acta 2016. [DOI: 10.1007/s00604-016-2038-6] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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33
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Aptamer based fluorometric acetamiprid assay using three kinds of nanoparticles for powerful signal amplification. Mikrochim Acta 2016. [DOI: 10.1007/s00604-016-1992-3] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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34
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Optimization of a multi-residue method for 101 pesticides in green tea leaves using gas chromatographytandem mass spectrometry. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2016. [DOI: 10.1016/j.bjp.2016.03.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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35
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Zhou L, Luo F, Zhang X, Jiang Y, Lou Z, Chen Z. Dissipation, transfer and safety evaluation of emamectin benzoate in tea. Food Chem 2016; 202:199-204. [DOI: 10.1016/j.foodchem.2015.11.069] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2014] [Revised: 09/04/2015] [Accepted: 11/13/2015] [Indexed: 10/22/2022]
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36
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Determination of 19 Representative Pesticides in Traditional Chinese Medicines by Dispersive Liquid-Liquid Microextraction and Ultrahigh-Performance Liquid Chromatography–Tandem Mass Spectrometry. Chromatographia 2016. [DOI: 10.1007/s10337-016-3105-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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37
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Utilizing a novel sorbent in the solid phase extraction for simultaneous determination of 15 pesticide residues in green tea by GC/MS. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1023-1024:44-54. [PMID: 27183089 DOI: 10.1016/j.jchromb.2016.04.053] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Revised: 04/09/2016] [Accepted: 04/30/2016] [Indexed: 11/20/2022]
Abstract
Pesticide residues exceeding standard in green tea is a widespread problem of the world's attention, containing organochlorine pesticides (OCPs), organophosphorus pesticides (OPPs), and pyrethroids. In this research, three dimensionally honeycomb Mg-Al layered double oxide (TDH-Mg-Al-LDO) combined with graphitized carbon black (GCB), packed as a column, was used as a novel solid phase extraction sorbent, applying in simultaneous determination of 15 pesticide residues in green tea coupled with GC-MS. Compared with different type of SPE column, it showed that TDH-Mg-Al-LDO exhibited great advantages in the extraction of 15 pesticide residues from green tea, which was seldom reported before. Different experiment conditions, such as combination order of Mg-Al-LDO and GCB, dosage of sorbents, type and volume of eluting solvent were thoroughly studied and optimized. The limits of detection (LODs) of 15 pesticides ranged from 0.9 to 24.2ng/g and the limits of quantifications (LOQs) were ranging from 3.0 to 80.0ng/g. The recoveries using this method at three spiked concentration levels (10, 100 and 500ng/g for Fenthion, P,P'-DDE, O,P'-DDT, P,P'-DDD and Bifenthrin, 100, 500 and 2000ng/g for the others) range from 71.1 to 119.0%. The relative standard deviation (RSD) was from 0.1 to 7.6% in all case. The result indicated that the proposed analytical method had been successfully applied for the simultaneous determination of 15 pesticide residues in commercial green tea.
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38
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Qi Y, Xiu FR, Zheng M, Li B. A simple and rapid chemiluminescence aptasensor for acetamiprid in contaminated samples: Sensitivity, selectivity and mechanism. Biosens Bioelectron 2016; 83:243-9. [PMID: 27131997 DOI: 10.1016/j.bios.2016.04.074] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 04/17/2016] [Accepted: 04/22/2016] [Indexed: 10/21/2022]
Abstract
Ultralow concentration and selective detection of pesticide residue is important to evaluate the environmental and biological pollution and the threat to human health which single component pesticide can bring. Herein, we report an amplified chemiluminescence (CL) sensing platform for ultrasensitive and selective acetamiprid (widely used pesticide) detection. It is based on aptamer's high binding affinity to target and the relevance between AuNPs' morphology and its catalytic effect to stimulate the generation of CL in the presence of H2O2 and luminol. Moreover, AuNPs morphological slight change induced by aptamers' conformation during targets binding could lead to the significant change of catalytic properties. Therefore, the proposed sensing platform for pesticide residue exhibited a high sensitivity toward acetamiprid with a detection limit of 62pM, which was about 100-fold lower than that of other aptamer-based sensor for acetamiprid detection. Because of the intrinsic specificity of aptamer's recognization, this sensing platform has high selectivity. So, this sensing platform provides a label-free and cost-effective approach for sensitive and selective detection of single component pesticide residue. More importantly, this CL method was successfully used to determine acetamiprid in real contaminated samples.
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Affiliation(s)
- Yingying Qi
- College of Ecological Environment and Urban Construction, Fujian University of Technology, Fuzhou 350108, PR China.
| | - Fu-Rong Xiu
- College of Ecological Environment and Urban Construction, Fujian University of Technology, Fuzhou 350108, PR China
| | - Minfeng Zheng
- College of Ecological Environment and Urban Construction, Fujian University of Technology, Fuzhou 350108, PR China
| | - Baoxin Li
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, PR China
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39
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Jokar M, Safaralizadeh MH, Hadizadeh F, Rahmani F, Kalani MR. Design and evaluation of an apta-nano-sensor to detect Acetamiprid in vitro and in silico. J Biomol Struct Dyn 2016; 34:2505-17. [PMID: 26609886 DOI: 10.1080/07391102.2015.1123188] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Pesticide detection is a main concern of food safety experts. Therefore, it is urgent to design an accurate, rapid, and cheap test. Biosensors that detect pesticide residues could replace current methods, such as HPLC or GC-MC. This research designs a biosensor based on aptamer (Oligonucleotide ss-DNA) in the receptor role, silver nanoparticles (AgNPs) as optical sensors and salt (NaCl) as the aggregative inducer of AgNPs to detect the presence of Acetamiprid. After optimization, .6 μM aptamer and 100 mM salt were employed. The selectivity and sensitivity of the complex were examined by different pesticides and different Acetamiprid concentrations. To simulate in vitro experimental conditions, bioinformatics software was used as in silico analysis. The results showed the detection of Acetamiprid at the .02 ppm (89.8 nM) level in addition to selectivity. Docking outputs introduced two loops as active sites in aptamer and confirmed aptamer-Acetamiprid bonding. Circular dichroism spectroscopy (CD) confirmed upon Acetamiprid binding, aptamer was folded due to stem-loop formation. Stability of the Apt-Acetamiprid complex in a simulated aqueous media was examined by molecular dynamic studies.
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Affiliation(s)
- Mahmoud Jokar
- a Department of Entomology and Plant Pathology , Urmia University , Urmia , Iran
| | | | - Farzin Hadizadeh
- b Biotechnology Research Center, School of Pharmacy , Mashhad University of Medical Sciences , Mashhad , Iran
| | - Fatemeh Rahmani
- c Faculty of Sciences, Department of Biology , Urmia University , Urmia , Iran
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40
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Jiao Y, Jia H, Guo Y, Zhang H, Wang Z, Sun X, Zhao J. An ultrasensitive aptasensor for chlorpyrifos based on ordered mesoporous carbon/ferrocene hybrid multiwalled carbon nanotubes. RSC Adv 2016. [DOI: 10.1039/c6ra07735h] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this study, we designed a novel and ultrasensitive aptamer sensor for the quantitative detection of chlorpyrifos.
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Affiliation(s)
- Yancui Jiao
- School of Agriculture and Food Engineering
- Shandong University of Technology
- Zibo 255049
- People's Republic of China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability
| | - Huiying Jia
- School of Agriculture and Food Engineering
- Shandong University of Technology
- Zibo 255049
- People's Republic of China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability
| | - Yemin Guo
- School of Agriculture and Food Engineering
- Shandong University of Technology
- Zibo 255049
- People's Republic of China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability
| | - Haiyun Zhang
- School of Agriculture and Food Engineering
- Shandong University of Technology
- Zibo 255049
- People's Republic of China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability
| | - Zhiqiang Wang
- School of Agriculture and Food Engineering
- Shandong University of Technology
- Zibo 255049
- People's Republic of China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability
| | - Xia Sun
- School of Agriculture and Food Engineering
- Shandong University of Technology
- Zibo 255049
- People's Republic of China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability
| | - Jing Zhao
- School of Agriculture and Food Engineering
- Shandong University of Technology
- Zibo 255049
- People's Republic of China
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41
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Martínez-Domínguez G, Romero-González R, Garrido Frenich A. Multi-class methodology to determine pesticides and mycotoxins in green tea and royal jelly supplements by liquid chromatography coupled to Orbitrap high resolution mass spectrometry. Food Chem 2015; 197:907-15. [PMID: 26617033 DOI: 10.1016/j.foodchem.2015.11.070] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Revised: 09/25/2015] [Accepted: 11/13/2015] [Indexed: 02/04/2023]
Abstract
A multi-class methodology was developed to determine pesticides and mycotoxins in food supplements. The extraction was performed using acetonitrile acidified with formic acid (1%, v/v). Different clean-up sorbents were tested, and the best results were obtained using C18 and zirconium oxide for green tea and royal jelly, respectively. The compounds were determined using ultra high performance liquid chromatography (UHPLC) coupled to Exactive-Orbitrap high resolution mass spectrometry (HRMS). The recovery rates obtained were between 70% and 120% for most of the compounds studied with a relative standard deviation <25%, at three different concentration levels. The calculated limits of quantification (LOQ) were <10 μg/kg. The method was applied to green tea (10) and royal jelly (8) samples. Nine (eight of green tea and one of royal jelly) samples were found to be positive for pesticides at concentrations ranging from 10.6 (cinosulfuron) to 47.9 μg/kg (paclobutrazol). The aflatoxin B1 (5.4 μg/kg) was also found in one of the green tea samples.
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Affiliation(s)
- Gerardo Martínez-Domínguez
- Research Group "Analytical Chemistry of Contaminants", Department of Chemistry and Physics, Research Centre for Agricultural and Food Biotechnology (BITAL), University of Almería, Agrifood Campus of International Excellence, ceiA3, E-04120 Almería, Spain
| | - Roberto Romero-González
- Research Group "Analytical Chemistry of Contaminants", Department of Chemistry and Physics, Research Centre for Agricultural and Food Biotechnology (BITAL), University of Almería, Agrifood Campus of International Excellence, ceiA3, E-04120 Almería, Spain
| | - Antonia Garrido Frenich
- Research Group "Analytical Chemistry of Contaminants", Department of Chemistry and Physics, Research Centre for Agricultural and Food Biotechnology (BITAL), University of Almería, Agrifood Campus of International Excellence, ceiA3, E-04120 Almería, Spain.
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42
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43
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A sensitive and label-free photoelectrochemical aptasensor using Co-doped ZnO diluted magnetic semiconductor nanoparticles. Biosens Bioelectron 2015; 77:378-84. [PMID: 26436325 DOI: 10.1016/j.bios.2015.09.066] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Revised: 09/22/2015] [Accepted: 09/27/2015] [Indexed: 11/20/2022]
Abstract
Co-doped ZnO diluted magnetic semiconductor as a novel photoelectric beacon was first constructed for photoelectrochemical (PEC) aptasensor of acetamiprid. The fabricated PEC sensing is based on the specific binding of acetamiprid and its aptamer, which induces the decreasement of enhanced photocurrent produced by the electron donor of quercetin. Co(2+) doping has a beneficial effect in extending the band width of light absorption of ZnO into the visible region and to promote the separation of the photoinduced carriers due to the sp-d exchange interactions existing between the band electrons and the localized d electrons of Co(2+). The fabricated aptasensor was linear with the concentration of acetamiprid in the range of 0.5-800 nmolL(-1) with the detection limit of 0.18 nmolL(-1). The presence of same concentration of other conventional pesticides did not interfere in the detection of acetamiprid and the recovery is between 96.2% and 103.7%. This novel PEC aptasensor has good performances with high sensitivity, good selectivity, low cost and portable features. The strategy of Co-doped ZnO diluted magnetic semiconductor paves a new way to improve the performances of PEC aptasensor.
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44
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Cao Y, Tang H, Chen D, Li L. A novel method based on MSPD for simultaneous determination of 16 pesticide residues in tea by LC–MS/MS. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 998-999:72-9. [DOI: 10.1016/j.jchromb.2015.06.013] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Revised: 06/09/2015] [Accepted: 06/15/2015] [Indexed: 02/05/2023]
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45
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Martínez-Domínguez G, Nieto-García AJ, Romero-González R, Frenich AG. Application of QuEChERS based method for the determination of pesticides in nutraceutical products (Camellia sinensis) by liquid chromatography coupled to triple quadrupole tandem mass spectrometry. Food Chem 2015; 177:182-90. [DOI: 10.1016/j.foodchem.2015.01.032] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Revised: 11/15/2013] [Accepted: 01/03/2015] [Indexed: 10/24/2022]
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46
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S1 certification of alpha-endosulfan, beta-endosulfan, and endosulfan sulfate in a candidate certified reference material (organochlorine pesticides in tea) by isotope dilution gas chromatography-mass spectrometry. Anal Bioanal Chem 2015; 407:3009-21. [DOI: 10.1007/s00216-015-8455-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Revised: 12/17/2014] [Accepted: 01/02/2015] [Indexed: 10/24/2022]
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47
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High-Throughput Methodology for the Determination of 33 Carbamates in Herbal Products by UHPLC–MS/MS. FOOD ANAL METHOD 2015. [DOI: 10.1007/s12161-014-9998-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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48
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QIN Y, CHEN L, YANG X, LI S, WANG Y, TANG Y, LIU C. Multi-residue Method for Determination of Selected Neonicotinoid Insecticides in Traditional Chinese Medicine Using Modified Dispersive Solid-phase Extraction Combined with Ultra-performance Liquid Chromatography Tandem Mass Spectrometry. ANAL SCI 2015; 31:823-30. [DOI: 10.2116/analsci.31.823] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Yao QIN
- Central Laboratory, Changchun Normal University
| | - Lina CHEN
- Central Laboratory, Changchun Normal University
| | | | - Sainan LI
- Central Laboratory, Changchun Normal University
| | - Yumeng WANG
- Central Laboratory, Changchun Normal University
| | - Ying TANG
- Central Laboratory, Changchun Normal University
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49
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Chen H, Wang Q, Jiang Y, Wang C, Yin P, Liu X, Lu C. Monitoring and risk assessment of 74 pesticide residues in Pu-erh tea produced in Yunnan, China. FOOD ADDITIVES & CONTAMINANTS PART B-SURVEILLANCE 2014; 8:56-62. [DOI: 10.1080/19393210.2014.972471] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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50
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