In situ hydrothermal growth of metal-organic gels coating for efficient solid-phase microextraction of pesticide residues
In this study, a metal-organic gels (MOGs)-coated solid-phase microextraction (SPME) fiber was developed and coupled with gas chromatography-mass spectrometer (GC–MS) for highly sensitive detection of pesticide residues in fruit samples. The MOGs-coated fiber was prepared using a simple in situ hydr...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-12-01
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| Series: | Talanta Open |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666831921000473 |
| _version_ | 1819101669808406528 |
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| author | Yimin Cai Juan Wang Qiang Zou Wenmin Zhang Suhui Chen Wei Liu Lan Zhang |
| author_facet | Yimin Cai Juan Wang Qiang Zou Wenmin Zhang Suhui Chen Wei Liu Lan Zhang |
| author_sort | Yimin Cai |
| collection | DOAJ |
| description | In this study, a metal-organic gels (MOGs)-coated solid-phase microextraction (SPME) fiber was developed and coupled with gas chromatography-mass spectrometer (GC–MS) for highly sensitive detection of pesticide residues in fruit samples. The MOGs-coated fiber was prepared using a simple in situ hydrothermal growth method, and the influencing factors in preparation process were investigated in detail. The prepared fiber showed high extraction efficiency, and excellent acid and alkali resistance. Under the optimized conditions, the developed SPME-GC–MS method showed wide linearity in the range of 0.01–10.00 ng mL−1 for eleven pesticides. The limits of detection (LODs, S/N=3) and quantification (LOQs, S/N = 10) were in the range of 0.001–0.052 ng mL−1 and 0.005 -0.094 ng mL−1, respectively. The relative standard deviations (RSDs, n = 5) of single steel wire and steel wire to steel wire were all below 10.7%. The method was successfully applied to determine pesticide residues in fruit samples with satisfactory recovery of 79.3% -117.7% and RSDs varying from 2.9% to 9.6%. The MOGs-coated fiber stayed stable after 100 times extractions without significant changes in extraction capacity. The results indicated that the MOGs provided a promising coating for SPME of pesticide residues in complicated matrix. |
| first_indexed | 2024-12-22T01:22:21Z |
| format | Article |
| id | doaj.art-4c7d78e0703b466cb3fd7e5c2790f6b5 |
| institution | Directory Open Access Journal |
| issn | 2666-8319 |
| language | English |
| last_indexed | 2024-12-22T01:22:21Z |
| publishDate | 2021-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Talanta Open |
| spelling | doaj.art-4c7d78e0703b466cb3fd7e5c2790f6b52022-12-21T18:43:42ZengElsevierTalanta Open2666-83192021-12-014100077In situ hydrothermal growth of metal-organic gels coating for efficient solid-phase microextraction of pesticide residuesYimin Cai0Juan Wang1Qiang Zou2Wenmin Zhang3Suhui Chen4Wei Liu5Lan Zhang6Zhangzhou Health Vocational College, Zhangzhou, Fujian, 363000, China; MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, ChinaMOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, ChinaQuanzhou Entry-Exit Inspection and Quarantine Bureau, Quanzhou, Fujian, 362000, ChinaMinjiang Teachers College, Fuzhou, Fujian, 350108, ChinaZhangzhou Health Vocational College, Zhangzhou, Fujian, 363000, ChinaMOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, ChinaMOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, China; Corresponding author.In this study, a metal-organic gels (MOGs)-coated solid-phase microextraction (SPME) fiber was developed and coupled with gas chromatography-mass spectrometer (GC–MS) for highly sensitive detection of pesticide residues in fruit samples. The MOGs-coated fiber was prepared using a simple in situ hydrothermal growth method, and the influencing factors in preparation process were investigated in detail. The prepared fiber showed high extraction efficiency, and excellent acid and alkali resistance. Under the optimized conditions, the developed SPME-GC–MS method showed wide linearity in the range of 0.01–10.00 ng mL−1 for eleven pesticides. The limits of detection (LODs, S/N=3) and quantification (LOQs, S/N = 10) were in the range of 0.001–0.052 ng mL−1 and 0.005 -0.094 ng mL−1, respectively. The relative standard deviations (RSDs, n = 5) of single steel wire and steel wire to steel wire were all below 10.7%. The method was successfully applied to determine pesticide residues in fruit samples with satisfactory recovery of 79.3% -117.7% and RSDs varying from 2.9% to 9.6%. The MOGs-coated fiber stayed stable after 100 times extractions without significant changes in extraction capacity. The results indicated that the MOGs provided a promising coating for SPME of pesticide residues in complicated matrix.http://www.sciencedirect.com/science/article/pii/S2666831921000473Metal-organic gelsSolid-phase microextractionGas chromatography-mass spectrometryPesticide residuesFruits |
| spellingShingle | Yimin Cai Juan Wang Qiang Zou Wenmin Zhang Suhui Chen Wei Liu Lan Zhang In situ hydrothermal growth of metal-organic gels coating for efficient solid-phase microextraction of pesticide residues Talanta Open Metal-organic gels Solid-phase microextraction Gas chromatography-mass spectrometry Pesticide residues Fruits |
| title | In situ hydrothermal growth of metal-organic gels coating for efficient solid-phase microextraction of pesticide residues |
| title_full | In situ hydrothermal growth of metal-organic gels coating for efficient solid-phase microextraction of pesticide residues |
| title_fullStr | In situ hydrothermal growth of metal-organic gels coating for efficient solid-phase microextraction of pesticide residues |
| title_full_unstemmed | In situ hydrothermal growth of metal-organic gels coating for efficient solid-phase microextraction of pesticide residues |
| title_short | In situ hydrothermal growth of metal-organic gels coating for efficient solid-phase microextraction of pesticide residues |
| title_sort | in situ hydrothermal growth of metal organic gels coating for efficient solid phase microextraction of pesticide residues |
| topic | Metal-organic gels Solid-phase microextraction Gas chromatography-mass spectrometry Pesticide residues Fruits |
| url | http://www.sciencedirect.com/science/article/pii/S2666831921000473 |
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