Synthesis and modification of MIL-101-NH2-based metal organic frameworks for preparation of SPME fibers using sol-gel methodology
Implementation of metal-organic frameworks (MOFs) in the separation science is attractive for many researchers, nowadays. In this study, three MOFs were synthesized and employed as extractive coating fibers. The MIL-101-NH2-based coatings were implemented in immersed solid phase microextraction (ISP...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-08-01
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| Series: | Advances in Sample Preparation |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772582023000256 |
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| author | Hasan Javanmardi Mahsa Doosti Alireza Abbasi Habib Bagheri |
| author_facet | Hasan Javanmardi Mahsa Doosti Alireza Abbasi Habib Bagheri |
| author_sort | Hasan Javanmardi |
| collection | DOAJ |
| description | Implementation of metal-organic frameworks (MOFs) in the separation science is attractive for many researchers, nowadays. In this study, three MOFs were synthesized and employed as extractive coating fibers. The MIL-101-NH2-based coatings were implemented in immersed solid phase microextraction (ISPME) of organophosphorus pesticides (OPPs) from real-life samples. The three different kinds of fiber coatings included MIL-101-NH2 and its acyl and ethyl modified structures as particles and 3-aminopropyl triethoxysilane (APTES) sol-gel precursor as binder. Each single MOF was coated on a stainless steel substrate via sol-gel technique. The uniform and tunable pore structure, high surface area, and capability to functionalization of MIL-101-NH2, make it susceptible for isolation of a wide range of analytes from small to large molecules. Extraction performance of the synthesized fiber coatings with different functionalities was examined on some model OPPs, followed by gas chromatography-mass spectrometry (GC–MS). The highest extraction efficiency was achieved by the acyl-modified (MIL-101-NHCOCH3) fiber coating. The effects of various parameters affecting the extraction and desorption efficiency such as desorption time, desorption temperature, ionic strength, stirring rate, extraction time and temperature for the selected fiber were investigated and optimized. All the synthesized fiber coatings showed sufficient affinity while the acyl modified extractive phase was found to be very sensitive for determination of OPPs with reliable figures of merit such as acceptable linear dynamic ranges (1–1000 & 5–1000 ng.kg−1, here two linear dynamic ranges (LDR) are reported due to the variation of LDR ranges from one analyte to another), low limits of detection (0.2–1 ng.kg−1), suitable intra–day (RSD% <13%) and inter–day relative standard deviation (RSD% <15%). |
| first_indexed | 2024-03-12T01:56:17Z |
| format | Article |
| id | doaj.art-866325ecac7642029ac448d8b76f5518 |
| institution | Directory Open Access Journal |
| issn | 2772-5820 |
| language | English |
| last_indexed | 2024-03-12T01:56:17Z |
| publishDate | 2023-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Advances in Sample Preparation |
| spelling | doaj.art-866325ecac7642029ac448d8b76f55182023-09-08T04:34:21ZengElsevierAdvances in Sample Preparation2772-58202023-08-017100075Synthesis and modification of MIL-101-NH2-based metal organic frameworks for preparation of SPME fibers using sol-gel methodologyHasan Javanmardi0Mahsa Doosti1Alireza Abbasi2Habib Bagheri3Environmental and Bio–Analytical Laboratories, Department of Chemistry, Sharif University of Technology, P.O. Box 11365–9516, Tehran, IranEnvironmental and Bio–Analytical Laboratories, Department of Chemistry, Sharif University of Technology, P.O. Box 11365–9516, Tehran, IranSchool of Chemistry, College of Science, University of Tehran, P.O. Box 14155-6455, Tehran, IranEnvironmental and Bio–Analytical Laboratories, Department of Chemistry, Sharif University of Technology, P.O. Box 11365–9516, Tehran, Iran; Corresponding author at: Environmental and Bio–Analytical Laboratories, Department of Chemistry, Sharif University of Technology, P.O. Box 11365–9516, Tehran, Iran.Implementation of metal-organic frameworks (MOFs) in the separation science is attractive for many researchers, nowadays. In this study, three MOFs were synthesized and employed as extractive coating fibers. The MIL-101-NH2-based coatings were implemented in immersed solid phase microextraction (ISPME) of organophosphorus pesticides (OPPs) from real-life samples. The three different kinds of fiber coatings included MIL-101-NH2 and its acyl and ethyl modified structures as particles and 3-aminopropyl triethoxysilane (APTES) sol-gel precursor as binder. Each single MOF was coated on a stainless steel substrate via sol-gel technique. The uniform and tunable pore structure, high surface area, and capability to functionalization of MIL-101-NH2, make it susceptible for isolation of a wide range of analytes from small to large molecules. Extraction performance of the synthesized fiber coatings with different functionalities was examined on some model OPPs, followed by gas chromatography-mass spectrometry (GC–MS). The highest extraction efficiency was achieved by the acyl-modified (MIL-101-NHCOCH3) fiber coating. The effects of various parameters affecting the extraction and desorption efficiency such as desorption time, desorption temperature, ionic strength, stirring rate, extraction time and temperature for the selected fiber were investigated and optimized. All the synthesized fiber coatings showed sufficient affinity while the acyl modified extractive phase was found to be very sensitive for determination of OPPs with reliable figures of merit such as acceptable linear dynamic ranges (1–1000 & 5–1000 ng.kg−1, here two linear dynamic ranges (LDR) are reported due to the variation of LDR ranges from one analyte to another), low limits of detection (0.2–1 ng.kg−1), suitable intra–day (RSD% <13%) and inter–day relative standard deviation (RSD% <15%).http://www.sciencedirect.com/science/article/pii/S2772582023000256Metal-organic frameworksPost synthetic modificationSolid phase microextractionOrganophosphorus pesticides |
| spellingShingle | Hasan Javanmardi Mahsa Doosti Alireza Abbasi Habib Bagheri Synthesis and modification of MIL-101-NH2-based metal organic frameworks for preparation of SPME fibers using sol-gel methodology Advances in Sample Preparation Metal-organic frameworks Post synthetic modification Solid phase microextraction Organophosphorus pesticides |
| title | Synthesis and modification of MIL-101-NH2-based metal organic frameworks for preparation of SPME fibers using sol-gel methodology |
| title_full | Synthesis and modification of MIL-101-NH2-based metal organic frameworks for preparation of SPME fibers using sol-gel methodology |
| title_fullStr | Synthesis and modification of MIL-101-NH2-based metal organic frameworks for preparation of SPME fibers using sol-gel methodology |
| title_full_unstemmed | Synthesis and modification of MIL-101-NH2-based metal organic frameworks for preparation of SPME fibers using sol-gel methodology |
| title_short | Synthesis and modification of MIL-101-NH2-based metal organic frameworks for preparation of SPME fibers using sol-gel methodology |
| title_sort | synthesis and modification of mil 101 nh2 based metal organic frameworks for preparation of spme fibers using sol gel methodology |
| topic | Metal-organic frameworks Post synthetic modification Solid phase microextraction Organophosphorus pesticides |
| url | http://www.sciencedirect.com/science/article/pii/S2772582023000256 |
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