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Zhang W, Yang Y, Mao J, Zhang Q, Fan W, Chai G, Shi Q, Zhu C, Zhang S, Xie J. Quinoline Bridging Hyperconjugated Covalent Organic Framework as Solid-Phase Microextraction Coating for Ultrasensitive Determination of Phthalate Esters in Water Samples. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:17999-18009. [PMID: 37904272 DOI: 10.1021/acs.jafc.3c02859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/01/2023]
Abstract
Phthalate esters (PAEs) are widely distributed in the environment, and this has caused serious health and safety concerns. Development of rapid and ultrasensitive identification and analysis methods for phthalate esters is urgent and highly desirable. In this work, a novel nitrogen-rich covalent organic framework (N-TTI) derived quinoline bridging covalent organic framework (N-QTTI) was fabricated and used as a solid-phase microextraction (SPME) coating for the ultrasensitive determination of phthalate esters in water samples. The physical and chemical properties of N-QTTI were investigated sufficiently. The N-QTTI-coated fiber demonstrates a superior enrichment performance than either the N-TTI-coated fiber or commercial fibers under the optimized SPME conditions. For the first time, we propose a semi-immersion strategy for the extraction of PAEs from water samples based on N-QTTI-coated SPME fibers. Combined with gas chromatography-mass spectrometry (GC-MS), the developed method N-QTTI-SPME-GC-MS exhibits a wide linear range with a satisfactory linearity (R2 ≥ 0.995). The limits of detection (LOD, S/N = 3) and the limits of quantification (LOQs, S/N = 10) were 0.17-1.70 and 0.57-5.60 ng L-1, respectively. The repeatability of the new method was examined using relative standard deviations (RSDs) between intraday and interday data, which were 0.38-7.98% and 1.22-6.60%, respectively. The spiked recoveries at three levels of 10, 100, and 1000 ng L-1 were in the range of 90.0-106.2% with RSDs of less than 7.48%. The enrichment factors ranged from 291 to 17180. When compared to previously published works, the LODs of the newly established method were improved 5-5400 times, and the enrichment factors were increased by at least 8 times. The absorption mechanism was investigated by X-ray photoelectron spectroscopy and noncovalent interaction force analysis. The technique was successfully employed for detecting PAEs in water samples.
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Affiliation(s)
- Wenfen Zhang
- Zhengzhou Tobacco Research Institute of CNTC, Fengyang Road, Zhengzhou, Henan 450001, People's Republic of China
- College of Chemistry, Zhengzhou University, Kexue Avenue 100, Zhengzhou, Henan 450001, People's Republic of China
- Food Laboratory of Zhongyuan, Flavour Science Research Center of Zhengzhou University, Kexue Avenue 100, Zhengzhou, Henan 450001, People's Republic of China
| | - Yuan Yang
- College of Chemistry, Zhengzhou University, Kexue Avenue 100, Zhengzhou, Henan 450001, People's Republic of China
| | - Jian Mao
- Zhengzhou Tobacco Research Institute of CNTC, Fengyang Road, Zhengzhou, Henan 450001, People's Republic of China
| | - Qidong Zhang
- Zhengzhou Tobacco Research Institute of CNTC, Fengyang Road, Zhengzhou, Henan 450001, People's Republic of China
| | - Wu Fan
- Zhengzhou Tobacco Research Institute of CNTC, Fengyang Road, Zhengzhou, Henan 450001, People's Republic of China
| | - Guobi Chai
- Zhengzhou Tobacco Research Institute of CNTC, Fengyang Road, Zhengzhou, Henan 450001, People's Republic of China
- Food Laboratory of Zhongyuan, Flavour Science Research Center of Zhengzhou University, Kexue Avenue 100, Zhengzhou, Henan 450001, People's Republic of China
| | - Qingzhao Shi
- Zhengzhou Tobacco Research Institute of CNTC, Fengyang Road, Zhengzhou, Henan 450001, People's Republic of China
| | - Changlian Zhu
- Henan Key Laboratory of Child Brain Injury and Henan Pediatric Clinical Research Center, Institute of Neuroscience and Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, People's Republic of China
| | - Shusheng Zhang
- Zhengzhou Tobacco Research Institute of CNTC, Fengyang Road, Zhengzhou, Henan 450001, People's Republic of China
- Food Laboratory of Zhongyuan, Flavour Science Research Center of Zhengzhou University, Kexue Avenue 100, Zhengzhou, Henan 450001, People's Republic of China
| | - Jianping Xie
- Zhengzhou Tobacco Research Institute of CNTC, Fengyang Road, Zhengzhou, Henan 450001, People's Republic of China
- Food Laboratory of Zhongyuan, Flavour Science Research Center of Zhengzhou University, Kexue Avenue 100, Zhengzhou, Henan 450001, People's Republic of China
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Porous aromatic framework coated stir bar sorptive extraction coupled with gas chromatography for the analysis of 16 polycyclic aromatic hydrocarbons in atmospheric particles and environmental water samples. J Chromatogr A 2022; 1673:463139. [PMID: 35584565 DOI: 10.1016/j.chroma.2022.463139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 05/09/2022] [Accepted: 05/09/2022] [Indexed: 11/20/2022]
Abstract
In this work, porous aromatic frameworks (PAFs) with different pore size were evaluated for simultaneous adsorption of 16 polycyclic aromatic hydrocarbons (PAHs) with large difference in polarity and molecular size. Two other porous organic polymers containing electron pushing/withdrawing group were investigated along for a comparison, and PAF-120 with the pore size of appr. 2.1 nm exhibited the highest extraction efficiency. Based on water contact angle and molecular dynamics simulation, the adsorption of 16 PAHs on PAF-120 was attributed to hydrophobic interaction, π-π interaction and molecular sieving effect. PAF-120/PDMS coated stir bar was then prepared by physical adhesion, and a method of stir bar sorptive extraction-gas chromatography-flame ionization detector was established for trace PAHs analysis in environmental samples. Under the optimal experimental conditions, the limits of detection (S/N = 3) for 16 PAHs were found to be in the range of 42-375 ng/L, with the relative standard deviations of 4.1-14.6% (n = 7). The enrichment factors varied from 31 (Indeno[1,2,3-cd]pyrene) to 80-fold (anthracene), with the maximal enrichment factor of 100-fold. The proposed method was applied to the analysis of PAHs in local environmental water and atmospheric particle samples. None of the 16 PAHs were detected in the collected water samples. While for the collected atmospheric particles, 12 PAHs were detected in fine particulate matter (PM2.5) within the range of 0.6-2.8 ng/m3. For inhalable particulate matter (PM10) and total suspended particulate matter (TSP), 16 PAHs were all detected in the range of 0.6-3.8 ng/m3 and 0.6-5.9 ng/m3, respectively. Quantitative recoveries were obtained in recovery test, demonstrating the accuracy and application potential of the proposed method.
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Shokrollahi M, Seidi S, Fotouhi L. In situ electrosynthesis of a copper-based metal–organic framework as nanosorbent for headspace solid-phase microextraction of methamphetamine in urine with GC-FID analysis. Mikrochim Acta 2020; 187:548. [DOI: 10.1007/s00604-020-04535-w] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 08/27/2020] [Indexed: 02/01/2023]
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