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学者姓名：林陈晨
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Abstract ：
Developing a functional media for precise identification of trace shellfish toxin would underpin the effective assessment of marine pollution. Herein, a novel monolithic column with a dual-mode strategy integrating antifouling and aptamer bionic affinity recognition was proposed for online specific identification of the marine toxin okadaic acid (OA). The zwitterionic monomer 2-(methacryloyloxy)ethylphosphorylcholine (MPC) and aptamers were synergistically employed to enable efficient reduction of matrix interferences and selective capture of target OA. Preparation optimization, characterization, and fouling-resistant mechanism of the dualmode bionic monolith were evaluated. The zwitterion phosphorylcholine MPC introduced into the monolith significantly improved the fouling resistance to biomass substrates, meanwhile the aptamers were able to provide a high specific recognition capacity. Coupled with LC-MS, the as-prepared monolith provided an effective approach for highly selective and sensitive identification of OA. Good recovery yields of over 90 % in shellfish tissue extracts and human serum were achieved with a sensitive limit of detection (LOD) as low as 0.1 ng/mL, as well as excellent specificity and low interference from proteins, fatty acids and analogues. Applied to popular shellfishes (such as clams, mussels, and oysters) and serum samples, trace OA toxin was accurately distinguished and quantified with satisfactory recoveries as 93.8 +/- 2.2 % - 99.9 +/- 1.9 % (n = 3). Compared to the traditional HLB cartridge and other materials in the LC-MS method, the resulting anti-fouling aptamer monolith provided a more advanced online analysis mode with higher sensitivity and better resolution of OA in biological samples. It might provide an attractive access to an online bionic recognition platform with LC-MS for efficient, antiinterference and sensitive specific detection of trace marine toxin OA in biological samples.
Keyword ：
Aptamer affinity monolith Aptamer affinity monolith Dual mode Dual mode Okadaic acid Okadaic acid Online recognition Online recognition Zwitterion antifouling Zwitterion antifouling
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| GB/T 7714 | Peng, Qi , Ye, Yan , Wu, Xinglin et al. Dual-mode monolithic column with zwitterion antifouling and aptamer affinity for online specific recognition of okadaic acid [J]. | JOURNAL OF CHROMATOGRAPHY A , 2025 , 1747 . |
| MLA | Peng, Qi et al. "Dual-mode monolithic column with zwitterion antifouling and aptamer affinity for online specific recognition of okadaic acid" . | JOURNAL OF CHROMATOGRAPHY A 1747 (2025) . |
| APA | Peng, Qi , Ye, Yan , Wu, Xinglin , Lin, Chenchen , Lin, Xucong , Weng, Qibiao et al. Dual-mode monolithic column with zwitterion antifouling and aptamer affinity for online specific recognition of okadaic acid . | JOURNAL OF CHROMATOGRAPHY A , 2025 , 1747 . |
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The release of microcystin (MCs) in aquatic ecosystems poses a substantial risk to the safety of irrigation and drinking water. In view of the challenges associated with monitoring MCs in water bodies, given their low concentration levels (mu g/L to ng/L) and the presence of diverse matrix interferences, there is an urgent need to develop an efficient, cost-effective and selective enrichment technique for MCs prior to its quantification. In this work, a gold nanoparticles (AuNPs)-functionalized zwitterionic polymer monolith was described and further applied for the affinity enrichment of MCs. Monoliths modified with zwitterionic amino acid ligands were synthesized within capillary microchannels as highly permeable porous supports for the immobilization of gold nanoparticles via electrostatic interactions. The structure and morphology of AuNPs-hybrid monoliths were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and FT-IR spectroscopy, confirming the uniform loading of AuNPs on the polymer matrix while ensuring porous structural stability. The asprepared hybrid monolith was employed as a sorbent for capillary microextraction (CME) prior to liquid chromatography-mass spectrometry (LC-MS) analysis. The results demonstrated that the functionalization of AuNPs under the protection of zwitterionic polymers markedly enhanced the extraction ability of the monolithic column for MCs. This is attributed to the formation of ligand exchange, hydrophobic interactions, and It-system interactions between MCs and AuNPs, as verified by zeta potential and XPS characterization. The developed CME-LC-MS method exhibited a wide linear range (1-10,000 ng L- 1), a low limit of detection (0.58-1.6 ng L- 1), and satisfactory recoveries (71.0-126.7 %) for three MCs in different ambient water sample matrices. It is evident from these findings that AuNPs-functionalized zwitterionic polymers represent a promising novel material for the efficient adsorption of MCs from aqueous samples.
Keyword ：
Affinity adsorbent Affinity adsorbent Capillary microextraction Capillary microextraction Gold nanoparticles Gold nanoparticles Microcystins Microcystins Zwitterionic polymer Zwitterionic polymer
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| GB/T 7714 | Wang, Shuqiang , Huang, Jiansong , Huang, Ting et al. Gold nanoparticles supported onto zwitterionic polymer capillary monoliths meant for efficient enrichment of microcystins in water [J]. | TALANTA , 2025 , 286 . |
| MLA | Wang, Shuqiang et al. "Gold nanoparticles supported onto zwitterionic polymer capillary monoliths meant for efficient enrichment of microcystins in water" . | TALANTA 286 (2025) . |
| APA | Wang, Shuqiang , Huang, Jiansong , Huang, Ting , Huang, Guobin , Lin, Chenchen , Wu, Xiaoping . Gold nanoparticles supported onto zwitterionic polymer capillary monoliths meant for efficient enrichment of microcystins in water . | TALANTA , 2025 , 286 . |
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Surface engineering of covalent organic frameworks (COFs) represents a highly promising strategy for achieving superior capture capacity towards environmental trace pollutants. Herein, the three-dimensional covalent organic frameworks (3D-COFs) with tunable crystallinity were synthesized and optimized via a simple solvent ratio adjustment, demonstrating an exceptional capture capacity of polychlorinated biphenyls (PCBs). By adjusting the ratio of solvents (1,4-dioxane and toluene), a functional 3D COF (dia-c5 TPA-TAM-COF) was discovered, providing an ideal approach to transform an amorphous compound into a functional platform with a significant increase in crystallinity, surface area and pore volume for PCBs capture. The adsorption features and analytical performance of PCBs were evaluated, and a good performance was achieved with high enrichment factors as 6973 ∼ 11,015. Optimization of solid phase microextraction (SPME) using the dia-c5 TPA-TAM-COF as the coating was investigated, and the method was verified for sensitive quantification of PCBs by using GC–MS, achieving the sensitive limits of detection (LODs) of 0.028 ∼ 0.0263 ng/L. Good reproducibility and robustness of the analytical performance of PCBs using dis-c5 was achieved, with the RSDs of intra-day (n = 3), inter-day (n = 6) and fiber-to-fiber (n = 3) of 0.7 ∼ 4.7 %, 1.8 ∼ 4.6 % and 2.0 ∼ 3.9 % respectively. The recoveries of PCBs in the soil fortified samples were obtained as 85.3 ∼ 101.9 % and 86.3 ∼ 108.8 %, respectively, as well as high thermal stability and long lifetime (keep on going more than 150 cycles). This study demonstrates that a simple protocol of adjusting the solvent content was capable of tailoring high crystallinity and suitable interpenetration degree of TPA-TAM-COFs for high performance target capture of PCBs in environmental soils. © 2025
Keyword ：
Carbon capture Carbon capture Environmental technology Environmental technology
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| GB/T 7714 | Chen, Qingai , Lu, Feifei , Chen, Chenqun et al. Surface engineering of 3D covalent organic frameworks via crystalline modulation for enhanced profiling of polychlorinated biphenyls [J]. | Journal of Chromatography A , 2025 , 1755 . |
| MLA | Chen, Qingai et al. "Surface engineering of 3D covalent organic frameworks via crystalline modulation for enhanced profiling of polychlorinated biphenyls" . | Journal of Chromatography A 1755 (2025) . |
| APA | Chen, Qingai , Lu, Feifei , Chen, Chenqun , Lin, Chenchen , wang, Jiabin , Lin, Xucong et al. Surface engineering of 3D covalent organic frameworks via crystalline modulation for enhanced profiling of polychlorinated biphenyls . | Journal of Chromatography A , 2025 , 1755 . |
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Background: Enzyme-linked immunosorbent assay (ELISA) requires the simultaneous maintenance of enzyme activity and the efficient labelling of the enzymes on the antibodies. Challenges in ELISA include the enzyme decomposition under harsh conditions and the requirement for secondary antibodies for binding. Preserving enzyme activity and simplifying antibody binding is a crucial prerequisite for expanding the applications of ELISA. Most encapsulation cases focus on enzyme immobilization in MOFs/COFs, while the synergetic encapsulation of enzyme-biotin in DNA nanoflowers (DNFs) and their labeling of capture antibodies to construct stable streamlined ELISA platforms was few. It is clear that a novel protocol is needed that is facile, capable of preserving both high enzymatic activity and efficient antibody binding for the stable ELISA. Results: We proposed a novel horseradish peroxidase (HRP)/biotin co-encapsulated DNA nanoflowers (HRP/ biotin@DNFs) for the synergistic implementation of the robust enzyme immobilization using rolling circle amplification and secondary antibody-free antibody binding using biotin-streptavidin ligation in ELISA. Enzyme immobilization, abundant antibody binding sites, and superior protection of enzymes were achieved in synchrony. High enzyme activity, excellent stability and chemical tolerance of HRP/biotin@DNFs were obtained. Especially, HRP/biotin@DNFs provides 95 %-85 % and 91 %-81 % of its original activity after the exposure at 25 degrees C and 37 degrees C in 5 days, respectively, whereas that of free HRP was drastically reduced to only 40 % and 20 % after the exposure at 25 degrees C and 37 degrees C for 5 days, respectively. Using tetrabromobisphenol A bis-(2-hydroxyethyl) ether (viz. TBBPA-BHEE) as the target model, high performance for the assay was achieved, with high enzymatic activity, good tolerance and sensitive limit of detection of 0.66 ng mL-1 that was 5-fold more sensitive than that of common ELISA. Stable and accurate ELISA for TBBPA-BHEE was realized with recovery yields of 91.4 %- 112.8 % with RSD at 1.6-3.4 %. Significance: This study pioneers a simple yet powerful strategy that simultaneously achieves both affordable, biologically encapsulated enzymes with high activity and secondary antibody-free antibody conjugation. It expands the toolbox of enzyme immobilization and facilitates enzyme binding on antibody without the need of secondary antibody, enabling cost-effective and robust ELISA for environmental assays.
Keyword ：
Biotin-streptavidin interaction Biotin-streptavidin interaction DNA nanoflowers DNA nanoflowers ELISA ELISA Enzyme/biotin encapsulation Enzyme/biotin encapsulation Rolling circle amplification Rolling circle amplification
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| GB/T 7714 | Wu, Xinglin , Chen, Chengqun , Lin, Chenchen et al. Synergistic HRP/Biotin encapsulation in DNA nanoflowers via RCA: A path to stabilized, streamlined ELISA platform [J]. | ANALYTICA CHIMICA ACTA , 2025 , 1371 . |
| MLA | Wu, Xinglin et al. "Synergistic HRP/Biotin encapsulation in DNA nanoflowers via RCA: A path to stabilized, streamlined ELISA platform" . | ANALYTICA CHIMICA ACTA 1371 (2025) . |
| APA | Wu, Xinglin , Chen, Chengqun , Lin, Chenchen , Wang, Jiabin , Weng, Qibiao , Lin, Xucong . Synergistic HRP/Biotin encapsulation in DNA nanoflowers via RCA: A path to stabilized, streamlined ELISA platform . | ANALYTICA CHIMICA ACTA , 2025 , 1371 . |
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Okadaic acid (OA) biotoxin acts a well-established inhibitor of protein phosphatase even a tumor promoter of human being, arouse great attention in safety monitoring. However, the powerful and convenient nanosensing technologies for addressing the demands such as rapidity, high sensitivity, and stability in the in-field test of OA shellfish toxin is still scarce. Herein, a high-performance magnetic biometric nanosensor (MBNS) integrating oriented aptamers and ultrasensitive laser-induced fluorescence (LIF) was firstly proposed for the in-field detection of trace OA in seafoods. High-density aptamers hybridized with FAM-labeled cDNA were tethered to the surface of AuNPs on magnetic MIL-101@Fe3O4, and then finely regulated by mercaptohexyl alcohol (MCH) to be orderly assembled, as was successfully utilized to engineer an active biological nanosensor for highly specific recognition of OA. Aptamers anchored on magnetic Fe3O4@MOF@AuNPs activate a biometric micro -reactor of OA, in which the superior LIF properties, conformation regulation of aptamer, and the specific recognition using aptamer genes were adopted. The magnetic nanosensor with an excellent specificity and super sensitivity for OA analysis was achieved within 20 min. Moreover, the content of captured OA could facilely be recorded by measuring the fluorescence intensity, and the limit of detection (LOD) and limit of quantitation of OA (LOQ) reached 0.015 and 0.050 ng/mL respectively, which was far better than most aptamer-based biometric sensing methods. The feasibility for accurate test of trace OA toxin in the fortified shellfish samples was validated with the recovery yields of 88.2-107.5% and RSD of 0.5-7.6%, respectively. The result demonstrated that the oriented-aptamer encoded MNS had significant practical values in rapid and ultrasensitive detection of OA biotoxin and the related safety applications.
Keyword ：
Laser-induced fluorescence Laser-induced fluorescence Magnetic nanosensor Magnetic nanosensor Okadaic acid Okadaic acid Oriented aptamer Oriented aptamer Ultrasensitive test Ultrasensitive test
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| GB/T 7714 | Zhou, Yuwei , Chen, Qingai , Huang, Guobin et al. Oriented-aptamer encoded magnetic nanosensor with laser-induced fluorescence for ultrasensitive test of okadaic acid [J]. | TALANTA , 2024 , 266 . |
| MLA | Zhou, Yuwei et al. "Oriented-aptamer encoded magnetic nanosensor with laser-induced fluorescence for ultrasensitive test of okadaic acid" . | TALANTA 266 (2024) . |
| APA | Zhou, Yuwei , Chen, Qingai , Huang, Guobin , Huang, Shukun , Lin, Chenchen , Lin, Xucong et al. Oriented-aptamer encoded magnetic nanosensor with laser-induced fluorescence for ultrasensitive test of okadaic acid . | TALANTA , 2024 , 266 . |
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The occurrence of microcystins (MCs) during harmful algal blooms (HABs) represents a major threat to freshwater environments. In this work, a novel surface amphiphilic hybrid porous polymers based on cage-like organosiloxanes (PCSs) was prepared for the enrichment of MCs. The copolymerization of bifunctional amphiphilic monomers, 2-methacryloyloxyethyl phosphorylcholine (MPC) and N-benzylquininium chloride (BQN), with the cross-linker methacryl substituted polyhedral oligomeric silsesquioxane (POSS) was achieved in an ionic liquid-based porogenic medium. The hierarchical porous structure, a variety of surface functional groups and weak hydrophilicity were well characterized on the prepared materials using scanning electron microscopy, nitrogen adsorption/desorption analysis, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, zeta potential analysis and water contact angle testing, respectively. The as-prepared surface amphiphilic PCSs was used as an adsorbent for pipette tip solid-phase extraction (PT-SPE) to enrich microcystins (MCs) from surface waters before their analysis by capillary electrochromatography (CEC) and liquid chromatography-mass spectrometry (LC-MS). Under the optimal conditions, the established PT-SPE-LC-MS method exhibited a wide linear range (10-10,000 ng L- 1), low limits of detection (4.0-8.0 ng L- 1) and satisfactory recoveries (89.5-102.8 %) for MCs. An adsorption mechanism involving electrostatic interactions, hydrogen bonding, hydrophilic interactions, and it-it stacking has been proposed. The findings suggest that the use of surface amphiphilic PCSs materials as adsorbents in the PT-SPE platform facilitates efficient enrichment of MCs for subsequent chromatographic analysis. These investigations offer a new perspective on the simple and uncomplicated pretreatment of complex environmental samples.
Keyword ：
Hybrid porous polymers based on cage-like Hybrid porous polymers based on cage-like Microcystins Microcystins organosiloxanes (PCSs) organosiloxanes (PCSs) Pipette tip solid phase extraction Pipette tip solid phase extraction Surface amphiphilic Surface amphiphilic
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| GB/T 7714 | Wang, Shuqiang , Liu, Wenning , Lei, Xiaoyun et al. Surface amphiphilic hybrid porous polymers based on cage-like organosiloxanes for pipette tip solid-phase extraction of microcystins in water [J]. | JOURNAL OF CHROMATOGRAPHY A , 2024 , 1736 . |
| MLA | Wang, Shuqiang et al. "Surface amphiphilic hybrid porous polymers based on cage-like organosiloxanes for pipette tip solid-phase extraction of microcystins in water" . | JOURNAL OF CHROMATOGRAPHY A 1736 (2024) . |
| APA | Wang, Shuqiang , Liu, Wenning , Lei, Xiaoyun , Huang, Ting , Huang, Guobin , Lin, Chenchen et al. Surface amphiphilic hybrid porous polymers based on cage-like organosiloxanes for pipette tip solid-phase extraction of microcystins in water . | JOURNAL OF CHROMATOGRAPHY A , 2024 , 1736 . |
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Accurate quantitation of trace-level ATP biomarkers often suffers from interference of sample matrix and remains a challenge. Herein, a novel magnetic biological nanosensor (MBNS) integrating tetrahedral framework nucleic acid (tFNA)-confined aptamers and ultrasensitive laser-induced fluorescence (LIF) was tailored and evaluated. The fluorescent aptamer nanoprobe hybridized with FAM-labelled cDNA was particularly incorporated into the inner cavity of tFNA, enabling a dual-mode mechanism that integrates molecular size selection and aptamer affinity recognition. By this strategy, the benefits of tFNA molecular sieve, the super sensitive properties of LIF, and the specific recognition of "aptamer gene codes" were integrated, as triggered the superior response of ATP. The structures, properties and reaction mechanism of tFNA, as well as tFNA modified with aptamer probe at different sites, were characterized in detail. A high level of anti-interference was achieved, shielding against nonspecific adsorption even in matrices with high protein and analogue content, 10(3)similar to 10(5) times higher than ATP. The release of fluorescent beacon from aptamer probe was facilely driven by specific binding of ATP, and an ultra-sensitive detection of 75 pmol/L ATP was obtained without amplification. It was 2-3 orders of magnitude more sensitive than most fluorescent aptasensors. Applied to serum samples, the stability and reproducibility of the resultant aptasensor have been validated with the intra- and inter-assay RSD in 1.6-6.4 % and -1.5-8.4 %, respectively. Acceptable recoveries of 96.5-106.8 % were achieved, consistent with the LC-MS method. It was expected to open a simple and efficient protocol for highly specific and ultrasensitive ATP detection in clinical diagnostics.
Keyword ：
Aptamer affinity Aptamer affinity Aptasensor Aptasensor Laser-induced fluorescence Laser-induced fluorescence Size selection Size selection Tetrahedral framework nucleic acid Tetrahedral framework nucleic acid
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| GB/T 7714 | Huang, Guobin , Xie, Qian , Chi, Jinxin et al. Magneto-fluorescent nanobiosensor with tetrahedral framework nucleic acid-confined aptamer for trace adenosine triphosphate detection [J]. | SENSORS AND ACTUATORS B-CHEMICAL , 2024 , 417 . |
| MLA | Huang, Guobin et al. "Magneto-fluorescent nanobiosensor with tetrahedral framework nucleic acid-confined aptamer for trace adenosine triphosphate detection" . | SENSORS AND ACTUATORS B-CHEMICAL 417 (2024) . |
| APA | Huang, Guobin , Xie, Qian , Chi, Jinxin , Lin, Chenchen , Lin, Xucong , Xie, Zenghong . Magneto-fluorescent nanobiosensor with tetrahedral framework nucleic acid-confined aptamer for trace adenosine triphosphate detection . | SENSORS AND ACTUATORS B-CHEMICAL , 2024 , 417 . |
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本实用新型涉及一种用于海水总氮检测的装置，包括试剂供应模块、流动注射控制模块、消解反应模块、还原反应/比色检测模块和废液收集模块，本实用新型基于氧化消解、钒试剂还原和偶氮比色反应，待测海水样品依次在消解反应模块和还原/比色检测模块中连续进行海水含氮物质的紫外光‑热协同催化过硫酸盐氧化消解、硝酸盐还原反应和亚硝酸盐显色反应，实现海水总氮的测定，仪器避免了使用高温高压消解反应装置和镉金属还原柱，实验条件较为温和，反应速度快，可应用于海水中总氮的检测分析。
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| GB/T 7714 | 林旭聪 , 刘影 , 林陈晨 . 一种用于海水总氮检测的装置 : CN202321410118.2[P]. | 2023-06-05 00:00:00 . |
| MLA | 林旭聪 et al. "一种用于海水总氮检测的装置" : CN202321410118.2. | 2023-06-05 00:00:00 . |
| APA | 林旭聪 , 刘影 , 林陈晨 . 一种用于海水总氮检测的装置 : CN202321410118.2. | 2023-06-05 00:00:00 . |
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Fabricating functional electrospun nanofiber coating for highly selective extraction of microcystin-LR (MC-LR) was of significant importance for water-safety monitoring. Herein, a novel MOF@aptamer functional-ized nanofabric was presented via a facile and reliable strategy integrating polydopamine (PDA) mediation and thiol-ene chemistry and applied for specific recognition of the MC-LR model analyte. Using poly -dopamine (PDA) as the mediating layer, vinyl-UiO-66 MOF was grown in situ, followed by post-synthetic modification (PSM) of Zr4 + with vinyl phosphate and rapid UV-initiated click reaction of aptamers. Uni-form deposition of Zr-based MOF (vinyl-UiO-66) on the nanofibers was directly produced, and the tedious co-electrospinning process was abandoned to prevent the aggregation and encapsulation of MOF. Via an efficient "thiol-ene" chemistry, massive thiol-terminated aptamers were grafted on MOF within one step under friendly conditions, rather than the time-consuming nanoparticle adsorption or unfriendly cova-lent chemical reactions. As a result, the robust MOF@aptamer-coated nano-fabrics were obtained, and a highly selective performance towards MC-LR was illustrated with a limit of detection (LOD) at 0.002 ng/mL, good precision (CV < 8.3%), good repeatability (2.2-6.0%) when coupled with LC-MS. Almost 1-2 orders of magnitude higher detection sensitivity was exhibited than that of the common non-specific SPE/SPME fiber reported so far. Applied to water samples, the good matrix-resistance ability, and accept-able recovery yields were achieved with high specificity. This strategy might provide a rapid and friendly protocol to efficiently fabricate MOF@aptamer functionalized nano-fabrics through electrospinning and interfacial "thiol-ene" chemistry for highly-selective microextraction.(c) 2022 Elsevier B.V. All rights reserved.
Keyword ：
Aptamer Aptamer Electrospun nanofiber Electrospun nanofiber Metal -organic framework Metal -organic framework Polydopamine Polydopamine Thiol-ene chemistry Thiol-ene chemistry
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| GB/T 7714 | Xie, Qian , Xu, Zhiqun , Huang, Guobin et al. Bioinspired polydopamine-mediated metal-organic framework click-grafting aptamers functionalized fabric for highly-specific recognition of microcystin-leucine arginine [J]. | JOURNAL OF CHROMATOGRAPHY A , 2022 , 1688 . |
| MLA | Xie, Qian et al. "Bioinspired polydopamine-mediated metal-organic framework click-grafting aptamers functionalized fabric for highly-specific recognition of microcystin-leucine arginine" . | JOURNAL OF CHROMATOGRAPHY A 1688 (2022) . |
| APA | Xie, Qian , Xu, Zhiqun , Huang, Guobin , Lin, Chenchen , Lin, Xucong . Bioinspired polydopamine-mediated metal-organic framework click-grafting aptamers functionalized fabric for highly-specific recognition of microcystin-leucine arginine . | JOURNAL OF CHROMATOGRAPHY A , 2022 , 1688 . |
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Developing functional fiber coating for selective solid phase microextraction (SPME) of trace pollutants is critical in environmental analysis. Herein, the novel covalent organic frameworks (COFs) with three-dimensional (3D) frameworks and multiple interactions were designed and presented for the selec-tive SPME of polychlorinated biphenyls (PCBs). Using tetra (p-aminophenyl) methane (TAM) and 1,3,5-triformylphloroglucinol (Tp) as the monomers, the 3D TpTAM-COF was synthesized and possessed a large specific surface area, high thermal stability, and spatial selectivity toward PCBs. Characterizations such as morphology, XPS, XRD, thermal stability, and enhancement factors (EFs) were studied. Multiple in-teractions including pi-pi conjugation, hydrophobic interaction, and selectivity toward non-planar struc-ture were adopted, which resulted in a superior adsorption affinity toward PCBs on TpTAM-COF. Under the optimal conditions, the spatial selectivity toward PCBs, organic analogs (o-dichlorobenzene, biphenyl) and polycyclic aromatic hydrocarbons (naphthalene, pyrene, and anthracene)) was achieved. Efficient and selective adsorption of fifteen PCBs was fulfilled with the highest EF up to 10305. Using the HS-SPME-GC-MS method, the recoveries of PCBs in the river water and soil samples were determined to be 84.8 +/- 7.8% -117.2 +/- 8.5% (n = 3) and 84.4 +/- 8.6% -114.7 +/- 7.6% (n = 3), respectively. Compared with most commercial SPME fibers and other COFs-based fibers, the resultant TpTAM-COF-coated fibers possessed higher selectivity and EFs of PCBs. It proposed a promising approach for selective SPME of trace PCBs by multiple interactions in the steric structure of 3D COFs.(c) 2022 Elsevier B.V. All rights reserved.
Keyword ：
3D covalent organic framework 3D covalent organic framework Fiber coating Fiber coating Polychlorinated biphenyls Polychlorinated biphenyls Selective solid phase microextraction Selective solid phase microextraction
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| GB/T 7714 | Lu, Feifei , Wu, Mengqin , Lin, Chenchen et al. Efficient and selective solid-phase microextraction of polychlorinated biphenyls by using a three-dimensional covalent organic framework as functional coating [J]. | JOURNAL OF CHROMATOGRAPHY A , 2022 , 1681 . |
| MLA | Lu, Feifei et al. "Efficient and selective solid-phase microextraction of polychlorinated biphenyls by using a three-dimensional covalent organic framework as functional coating" . | JOURNAL OF CHROMATOGRAPHY A 1681 (2022) . |
| APA | Lu, Feifei , Wu, Mengqin , Lin, Chenchen , Lin, Xucong , Xie, Zenghong . Efficient and selective solid-phase microextraction of polychlorinated biphenyls by using a three-dimensional covalent organic framework as functional coating . | JOURNAL OF CHROMATOGRAPHY A , 2022 , 1681 . |
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