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Cyclodextrin-based dispersive liquid-liquid microextraction for the determination of fungicides in water, juice, and vinegar samples via HPLC. Food Chem 2021; 367:130664. [PMID: 34343804 DOI: 10.1016/j.foodchem.2021.130664] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 07/05/2021] [Accepted: 07/19/2021] [Indexed: 12/22/2022]
Abstract
Cyclodextrin-based dispersive liquid-liquid microextraction (CD-DLLME) was developed for the determination of triazole and strobilurin fungicides in water, juice, and vinegar samples using high-performance liquid chromatography-diode-array detection (HPLC-DAD). Undecanol, which is a green solvent, was selected as the extraction solvent. A cyclodextrin aqueous solution was chosen as the dispersion solvent and demulsifier to avoid the use of a toxic dispersion solvent and eliminate the centrifugation step. Dispersion and phase separation were completed within 1 and 60 s, respectively. The linear range of this method was 1 to 100 µg L-1. The limits of detection were 0.3 μg L-1 along with the preconcentration factor of 133 and enrichment factor of 124. The recovery was 83.2% to 103.2%. This pretreatment method was fast, simple, and environmentally friendly and was successfully applied to the analysis of triazole and strobilurin fungicide residues in water, juice, and vinegar samples.
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Cheng Q, Huang M, Xiao A, Xu Z, Chen X, Gao Y, Yu G. Recyclable nitrogen-containing chitin-derived carbon microsphere as sorbent for neonicotinoid residues adsorption and analysis. Carbohydr Polym 2021; 260:117770. [PMID: 33712128 DOI: 10.1016/j.carbpol.2021.117770] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 01/02/2021] [Accepted: 02/03/2021] [Indexed: 01/19/2023]
Abstract
Chitin-derived three-dimensional nanomaterials has tremendous potential in pesticide residue analysis as an attractive green substitute for toxic solvents. The work presented herein focuses on constructing the environmentally friendly nitrogen-containing chitin-derived carbon microspheres (N-CCMP) for the efficient adsorption of neonicotinoid pesticides (NPs) including acetamiprid, clothianidin, imidacloprid and thiamethoxam. The N-CCMP displayed hierarchical porous structure, uniform size distribution, and excellent specific surface area of 680.8 m2 g-1. The N-CCMP with N-heterocyclic ring structure and surface oxygen functional groups exhibited good affinity to NPs, which was beneficial for the rapid adsorption. Then, the N-CCMP were utilized as sorbent in extraction of NP residues. Under the optimum conditions, the relative recoveries in water and juice sample were in the range of 85 %-116 % and 74 %-108 %, with relative standard deviations (RSDs) of 0.1 %∼5.2 % and 0.7 %∼5.2 %, respectively. The extraction performance of N-CCMP were still over 80 % after 5 times of reuse.
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Affiliation(s)
- Qiaoyun Cheng
- Guangdong Biomaterials Engineering Technology Research Center, Institute of Bioengineering, Guangdong Academy of Science, Guangzhou, 510316, China; Research Center for Sugarcane Industry Engineering Technology of Light Industry of China, Guangzhou, 510316, China
| | - Minxing Huang
- Guangdong Biomaterials Engineering Technology Research Center, Institute of Bioengineering, Guangdong Academy of Science, Guangzhou, 510316, China; Research Center for Sugarcane Industry Engineering Technology of Light Industry of China, Guangzhou, 510316, China
| | - Ailing Xiao
- Guangdong Biomaterials Engineering Technology Research Center, Institute of Bioengineering, Guangdong Academy of Science, Guangzhou, 510316, China; Research Center for Sugarcane Industry Engineering Technology of Light Industry of China, Guangzhou, 510316, China
| | - Zhuoyan Xu
- Guangdong Biomaterials Engineering Technology Research Center, Institute of Bioengineering, Guangdong Academy of Science, Guangzhou, 510316, China; Research Center for Sugarcane Industry Engineering Technology of Light Industry of China, Guangzhou, 510316, China
| | - Xiaochu Chen
- Guangdong Biomaterials Engineering Technology Research Center, Institute of Bioengineering, Guangdong Academy of Science, Guangzhou, 510316, China; Research Center for Sugarcane Industry Engineering Technology of Light Industry of China, Guangzhou, 510316, China.
| | - Yufeng Gao
- Guangdong Biomaterials Engineering Technology Research Center, Institute of Bioengineering, Guangdong Academy of Science, Guangzhou, 510316, China; Research Center for Sugarcane Industry Engineering Technology of Light Industry of China, Guangzhou, 510316, China
| | - Goubin Yu
- Guangdong Biomaterials Engineering Technology Research Center, Institute of Bioengineering, Guangdong Academy of Science, Guangzhou, 510316, China; Research Center for Sugarcane Industry Engineering Technology of Light Industry of China, Guangzhou, 510316, China.
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Pletnev IV, Smirnova SV, Shvedene NV. New Directions in Using Ionic Liquids in Analytical Chemistry. 1: Liquid–Liquid Extraction. JOURNAL OF ANALYTICAL CHEMISTRY 2019. [DOI: 10.1134/s1061934819070062] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Yang J, Fan C, Tang G, Zhang W, Dong H, Liang Y, Wang Y, Zou M, Cao Y. Relationship between the Structure of Ionic Liquid and Its Enrichment Ability To Trace Fungicides from an Environmental Water Sample. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:9418-9425. [PMID: 30133274 DOI: 10.1021/acs.jafc.8b03244] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
To elucidate the relationship between the structure of ionic liquid (IL) and its enrichment ability to trace pesticides from an environmental water sample, a series of imidazole-based ILs were synthesized to extract four fungicides (boscalid, cyprodinil, fluazinam, and pyrimethanil) through an in situ ionic liquid dispersive liquid-liquid microextraction method. The results showed that aromatic heterocyclic monocation ionic liquids (MILs) had better extraction ability to fungicides than other three alicyclic heterocyclic MILs. Dication ionic liquids (DILs) with the four carbons at the side chain had better ability to extract fungicides than MILs, and DILs with a long bridge carbon chain had better recoveries of fungicides with low Kow values. The proposed method showed high mean enrichment factors and high recoveries of the fungicides from real water samples. The rules of the relationship between the structure of IL and enrichment ability are instructive to the application of ILs in pretreatment of complex substances.
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Affiliation(s)
- Jiale Yang
- College of Plant Protection , China Agricultural University , 2 Yuanmingyuan West Road , Beijing 100193 , People's Republic of China
| | - Chen Fan
- College of Plant Protection , China Agricultural University , 2 Yuanmingyuan West Road , Beijing 100193 , People's Republic of China
| | - Gang Tang
- College of Plant Protection , China Agricultural University , 2 Yuanmingyuan West Road , Beijing 100193 , People's Republic of China
| | - Wenbing Zhang
- College of Plant Protection , China Agricultural University , 2 Yuanmingyuan West Road , Beijing 100193 , People's Republic of China
| | - Hongqiang Dong
- College of Plant Protection , China Agricultural University , 2 Yuanmingyuan West Road , Beijing 100193 , People's Republic of China
| | - You Liang
- College of Plant Protection , China Agricultural University , 2 Yuanmingyuan West Road , Beijing 100193 , People's Republic of China
| | - Yanfei Wang
- Institute of Equipment Technology , Chinese Academy of Inspection and Quarantine , 3 Gaobeidian North Road , Beijing 100123 , People's Republic of China
| | - Mingqiang Zou
- Institute of Equipment Technology , Chinese Academy of Inspection and Quarantine , 3 Gaobeidian North Road , Beijing 100123 , People's Republic of China
| | - Yongsong Cao
- College of Plant Protection , China Agricultural University , 2 Yuanmingyuan West Road , Beijing 100193 , People's Republic of China
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Clark KD, Emaus MN, Varona M, Bowers AN, Anderson JL. Ionic liquids: solvents and sorbents in sample preparation. J Sep Sci 2017; 41:209-235. [DOI: 10.1002/jssc.201700864] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 09/12/2017] [Accepted: 09/12/2017] [Indexed: 12/15/2022]
Affiliation(s)
- Kevin D. Clark
- Department of Chemistry; Iowa State University; Ames IA USA
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