ANALYTICA CHIMICA ACTA
·
2026
·
IF 6.1
Jia-Xin Song,Dai-Fei Wang,Cheng Yang,Xiao-Fang Shen,Yue-Hong Pang
Background While many endocrine-disrupting compounds (EDCs) may form more toxic intermediates during degradation, current research predominantly focuses on parent compound residues and degradation efficiency, with limited attention to monitoring degradation process. This insufficient understanding of the degradation pathway hampers accurate ecological risk evaluation.In this work, a novel solid-phase microextraction (SPME) fiber coated with a porphyrin-based porous organic polymer (POR-Tp) was fabricated for simultaneous trace detection of bisphenol AF (BPAF) and monitoring of its degradation process. Results The POR-Tp has large specific surface area (330.201 m 2 /g) and pore size (3.929 nm). The POR-Tp/SSW fiber exhibited excellent durability (over 200 cycles), superior extraction capability and broad applicability to other bisphenols (BPA, BPB, BPF, TBBPA) and triclosan. The established method demonstrated a wide linear range (1-1000 μg/L) and low detection limit (0.03 μg/L). The method was successfully applied to determine trace levels of BPAF in environmental water and beverage samples. Furthermore, the light-activated persulfate degradation process of BPAF was monitored, with intermediate products tracked and a potential degradation pathway proposed, and toxicity analysis of BPAF and its intermediate products was performed. Significance This study successfully developed a novel porphyrin-based porous organic polymer (POR-Tp) as a SPME fiber coating for trace detection of BPAF in complex matrices and monitoring of its degradation process and intermediates transformation. The analytical strategy developed in this work provides an effective tool for precisely tracking the migration and transformation of EDCs, thereby improving ecological risk assessment throughout the degradation pathway.
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MICROCHEMICAL JOURNAL
·
2026
·
IF 5.2
Hao Wang,Jianbin Ju,Yuji Ruan,Guihua Ruan,Yipeng Huang
Pre-oxidation‑carbonization regulated PAN-derived porous carbon flowers, preventing collapse and enabling N/O co-doping. • PCF-400's 400 °C carbonization retains active sites, enhancing adsorption efficiency of NSAIDs. • PCF-400 exhibits superior NSAIDs selectivity, high NSAIDs adsorption (Qe ≥ 12.69 mg g −1 ) and fast kinetics (5 min equilibrium). Flower-shaped porous carbons are attractive in separation science. Herein, the controlled synthesis of porous carbon flowers (PCF) was realized by pre-oxidation and carbonization treatments of flower-shaped polyacrylonitrile (PAN) particles. The pre-oxidation treatment at 230 °C transferred the linear polymer chain of PAN to six-membered ring structure, enhancing the thermal stability to avoid the collapse of flower-shape in carbonization process. Then, the subsequent carbonization promoted the crosslinking and formation of alicyclic and graphitic structures. The carbonization at moderate temperature (400 °C) enabled the remaining of some oxygen-containing groups and the formation of nitrogen-doped carbon structure, which was responsible for the improved adsorption efficiency for non-steroidal anti-inflammatory drugs (NSAIDs). In addition, higher adsorption efficiency of PCF than that of porous carbons in other morphologies for NSAIDs was demonstrated. The PCF carbonized at 400 °C (PCF-400) showed sufficient adsorption capacity (12.69–18.59 mg g −1 ) and selectivity for NSAIDs. An SPE-HPLC method based on PCF-400 was proposed for extraction and analysis of trace NSAIDs in environmental water samples. The SPE-HPLC method showed a wide linear range (1–400 ng mL −1 ) and low detection limits (0.38–0.56 ng mL −1 ) for three kinds of NSAIDs. The intra-day and inter-day relative standard deviations (RSDs) of this method were 1.85%–2.77% and 3.17%–3.63%, respectively. The recoveries of NSAIDs in spiked samples ranged from 89% to 103% by the SPE-HPLC method. This study not only provides a simple synthetic method for preparing carbon materials with controllable morphology and adjustable heteroatom content, but also offers an analytical method for detection of trace NSAIDs in complex environmental matrices. Download: Download high-res image (126KB) Download: Download full-size image
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FOOD CHEMISTRY
·
2026
·
IF 10.4
Ziyi Yin,Xiaoqing Wang,Qianqian Wang,Chun Wang,Yujie Ma,Mingming Xu,Qiuhua Wu
Phenolic endocrine disrupting compounds (PEDCs) are associated with significant health hazards, necessitating the development of highly sensitive analytical detection methodologies. This study reported a novel covalent organic framework (DT-COF) by strategically incorporating hydroxyl-rich building blocks into π-conjugated architectures. DT-COF demonstrated enhanced adsorption effect for PEDCs through the multiple hydrogen bond binding and multiple π-π interaction sites. By using DT-COF as a solid phase extraction adsorbent and integrating it with high performance liquid chromatography tandem the mass spectrometry, a robust analytical platform was provided to determine the trace PEDCs in green tea beverages, bottled water, and milk. Under optimized conditions, the method exhibited excellent analytical performance, including a low detection limit (0.018–0.219 ng mL −1 ), good recovery rates (86.3–109%), and outstanding reproducibility (RSDs ≤6.6%). This study achieves dual objectives: enabling sensitive detection of PEDCs contaminants while pioneering functional COF material development.
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JOURNAL OF CHROMATOGRAPHY A
·
2026
·
IF 4
Xue Yang,Yuanyuan Zhang,Pinzhu Chen,Shengxiao Zhang,Qiang Xu,Yujing Chen,Faju Hou
In this paper, poly(N-isopropylacrylamide) (PNIPAM) composite materials were successfully prepared through free radical polymerization. Utilizing its thermosensitive properties, PNIPAM can control the adsorption and desorption processes by adjusting the temperature. Due to the presence of hydrophobic interactions and hydrogen bonds, this polymer exhibits excellent adsorption performance for bisphenol A and bisphenol B. The adsorption process follows the pseudo-second-order kinetic model and the Freundlich isotherm model, indicating that its adsorption behavior is non-uniform. Under optimized conditions, the maximum adsorption capacities for BPA and BPB are 187.13 mg·g⁻¹ and 271.45 mg·g⁻¹, respectively. In addition, a magnetic solid-phase extraction method was established for extracting four phenolic compounds from water samples. Under the optimal conditions, the limits of detection are in the range of 0.0005 - 0.02 mg·L⁻¹, and the limits of quantification are in the range of 0.00165 - 0.066 mg·L⁻¹, respectively. The applicability of this method was evaluated by analyzing three water samples, and the spiked recovery rates are in the range of 75.81 - 97.54 %. The results show that the magnetic and thermal dual-responsive properties of the synthesized polymer contribute to efficient separation and recovery.
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JOURNAL OF CHROMATOGRAPHY A
·
2026
·
IF 4
Zongkai Li,Qianqian Wang,Lin Hao,Weihua Liu,Qiuhua Wu,Chun Wang
The sensitive detection of trace endocrine disruptors holds immense practical significance for safeguarding food safety. Herein, a boronic acid-decorated magnetic porous organic polymer (POP-PA@Fe 3 O 4 ) was synthesized as adsorbent for the extraction and enrichment of several phenolic endocrine disruptors (PEDs). The decoration of boronic acid provides a high density of hydroxyl groups, significantly enhancing its adsorption performance. POP-PA@Fe 3 O 4 exhibited excellent adsorption capability toward PEDs by virtue of H-bonding interactions and π-π stacking. Subsequently, combined with high-performance liquid chromatography/mass spectrometry (HPLC/MS), a sensitive method for the determination of PEDs in milk was established by employing POP-PA@Fe 3 O 4 as a magnetic extraction adsorbent. The method showed low detection limits (S/ N = 3) of 0.080–0.40 ng·mL −1 . The recoveries of spiked samples spanned 84.6% to 100.0% with RSD ≤ 7.5%. This work presents a feasible approach for the detection of PEDs in milk and further expands the application of functionalized porous organic polymers in food safety monitoring.
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JOURNAL OF CHROMATOGRAPHY A
·
2026
·
IF 4
Lin Lv,Dan Qiu,Lei Wang,Yuanyuan Zhang,Yan Zhao
An innovative porous magnetic solid-phase extraction composite material (Fe 3 O 4 @MIL-101(Cr)-NH 2 @Dha@Dha-TAPB), integrating amino-functionalized metal-organic frameworks and phenolic hydroxyl‑functionalized covalent organic frameworks, was constructed for the efficient extraction of bisphenols (BPs) from aqueous samples. The adsorption and desorption parameters of the adsorbent were systematically optimized to establish the most effective sample pretreatment conditions. Under these optimized conditions, the composite material was integrated with high-performance liquid chromatography coupled with fluorescence detection (HPLC-FLD), yielding a method with excellent analytical performance. Specifically, the method exhibited good linearity over the range from 0.05 to 500 μg L −1 , with coefficients of determination ranging from 0.9993 to 0.9998, low limits of detection (0.003–0.014 μg L −1 ), and recovery rates of 82.9–101.6% for carbonated beverages and 82.2–99.3% for environmental water samples. By integrating the composite material with HPLC-FLD, a simple, sensitive, and reliable analytical approach was established and successfully employed for the analysis of BPs in aqueous samples.
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TALANTA
·
2026
·
IF 6.7
Chenhuan Wang,Zhimei Liu,Yang Zhu,Jiayi Zhang,Zhi Li
Herein, a boronic acid-functionalized porous organic polymer (B-TC-POP) was synthesized via a two-step Friedel-Crafts reaction. The B-TC-POP showed remarkable adsorption capability for phenolic endocrine disrupting compounds (EDCs-OH). The adsorption mechanism of B-TC-POP mainly depends on the strong hydrogen bonding and π-π interactions. The B-TC-POP was utilized as a solid-phase extraction adsorbent in combination with high-performance liquid chromatography-mass spectrometry (HPLC-MS) to construct a new analysis approach for highly sensitive determination of several EDCs-OH in chicken and shrimp matrices. The proposed method demonstrated excellent performance, achieving low detection limits (S/N = 3) of 0.30-1.50 ng g −1 (chicken sample) and 0.25-1.30 ng g −1 (shrimp sample), high accuracy (spiked recovery of 86.2 %–108 %), and good precision (relative standard deviation < 7.4 %). This work not only elucidates the potential of boronic acid-functionalized adsorbents in contaminant monitoring but also provides a strategy for designing advanced functional adsorbents with enhanced adsorption efficiency.
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ANALYTICA CHIMICA ACTA
·
2026
·
IF 6.1
Jinglin Chen,Xiaoying Feng,Tingting Tu,Chunying Wei,Yongsheng Cui,Juan Zheng,Gangfeng Ouyang
Background The increasing concern surrounding environmental pollution necessitates effective monitoring of emerging organic pollutants, especially for bisphenol compounds (BPs). These compounds are prevalent in various industries and have been detected in trace amounts across different ecosystems, raising significant health concerns. Current monitoring techniques often rely on extensive use of extraction solvents, large sample sizes, and expensive materials. Therefore, there is a pressing need for the development of cost-effective, stable, and eco-friendly pretreatment methods to enhance monitoring efficiency. Results A novel biochar from Gynostemma pentaphyllum , designated PBAGB, synthesized through a waste-to-wealth strategy that integrates K 2 CO 3 activation, ball-milling, and plasma treatment. This innovative approach resulted in a biochar with high specific surface area, abundant oxygen-containing functional groups, and numerous defect sites. The modifications significantly enhanced the active sites available on PBAGB, which was then employed as a solid-phase microextraction (SPME) fiber for extracting bisphenols (BPs). Compared to commercial fibers, the PBAGB-coated fiber demonstrated excellent stability, improved extraction performance, and lower production cost. Coupled with ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS), the method achieved good linear ranges (5–5000 ng L −1 ), low detection limits (0.39–2.9 ng L −1 ), and satisfactory relative recoveries (80.4–119.9%), allowing for efficient determination of BPs in 21 marine samples from the Beibu Gulf. Significance The work presents a more sustainable, practical, and effective sample pretreatment technique utilizing direct-immersion SPME (DI-SPME) coupled with UPLC-MS/MS for environmental monitoring of trace BPs in Beibu Gulf, following a waste-to-wealth strategy. It emphasizes the practical application of PBAGB-coated fibers in extracting BPs and assessing the ecological risks posed by trace BPs.
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BIOSENSORS & BIOELECTRONICS
·
2026
·
IF 11.8
Tiantian Li,Ziwei Chen,Qi Li,Wenqi Tang,Mei Shen,Dongmei Li,Jiayue Zhou,Yinuo Chen,Guanggui Yu,Na Sai
The integration of multiple optical signals with independent responses within a single sensing architecture is of interest for multiplex small-molecule detection. An anole-inspired multi-colored colloidal array (MCA) probe integrating structural reflection (SR), fluorescein isothiocyanate (FITC), and europium acetylacetonate (EU) emissions was developed for simultaneous visual detection of bisphenol B (BPB) and levofloxacin (LVX). The probe consists of a highly ordered non-close-packed (NCP) colloidal array assembled from FITC- and EU-doped molecularly imprinted particles, enabling the coexistence of structural color and dual-emission luminescence within a single architecture. The periodic array generates an additional SR signal via Bragg diffraction, while the enlarged interparticle spacing suppresses aggregation-induced quenching and non-radiative losses, resulting in enhanced FITC and EU emissions. Upon exposure to BPB and LVX, orthogonal optical responses are triggered, producing concentration-dependent multicolor variations that are directly observable by the naked eye, enabling dual-target discrimination. To quantitatively decode these physico-optical responses, a logic-guided physico-optical decoding (LGPD) framework is employed, enabling simultaneous prediction of BPB and LVX concentrations with high correlation coefficients (range from 0.964 to 0.994). The probe exhibits stable tri-color emission over 20 days, with sensitivity low to 1 ng/mL, a linear range of 1-300 ng/mL, and recoveries of 85.4 %-98.61 % in real samples. This multimodal optical encoding and machine-learning-based decoding strategy enables rapid (<30 min) multiplexed detection and provides a generalizable platform for point-of-care analysis in environmental and biomedical applications. This bioinspired integration of optical encoding and machine-learning-assisted decoding provides an alternative strategy for visual and quantitative multiplex sensing.
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ACS Applied Polymer Materials
·
2026
·
IF 5.2
Liu Jia,Duan Xiongcheng,Wu Zhuorui,Meng Wan,Zhang Lin,Li Hengye,Wei Meijie,Wang Zhongxia,Kong Fenying,Wang Wei
Herein,
thioether cyclodextrin-incorporated triazine-based porous
organic polymer (S-CD-TPOP) featuring multifunctional nature was prepared
for iodine vapor uptake and adsorption of organic micropollutants
(OMPs) and Hg 2+ from water. Polycondensation between specially
designed per-6-(4-formylbenzylthio)-β-cyclodextrin (FB-S-CD)
and 1,4-bis(2,4-diamino-1,3,5-triazine)benzene (BDTAB) affords the
S-CD-TPOP containing CD cavities, thioether, and triazine units as
well as high nitrogen content. S-CD-TPOP exhibits a high surface area
of 467.42 m 2 /g with 28.56% nitrogen and 2.16% sulfur contents.
S-CD-TPOP shows iodine vapor uptake of 1.70 g/g, where charge transfer
plays a dominant role. Moreover, S-CD-TPOP displays quick adsorption
kinetics and excellent removal efficiencies for phenols with a maximum
adsorption capacity ( q m ) of 181.16 mg/g
for bisphenol A (BPA). Host–guest and hydrophobic interactions
serve as the main mechanisms for the adsorption of OMPs onto S-CD-TPOP.
Additionally, S-CD-TPOP demonstrates rapid Hg 2+ adsorption
kinetics with a q m value of 45.25 mg/g,
primarily driven by coordination between the −S– group
and Hg 2+ . Furthermore, S-CD-TPOP exhibits great application
potential for simultaneously removing low concentrations BPA and Hg 2+ from river water. S-CD-TPOP also exhibits excellent reusability
and is a promising and versatile adsorbent for removing diverse environmental
pollutants.
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FOOD CHEMISTRY
·
2026
·
IF 10.4
Jiangping Cao,Zetong Wang,Chongchong Du,Xueli Zhuang,Jimei Zhou,Juanjuan Wei,Hongwei Di,Yangying Han
In this work, a novel ferrofluid was fabricated by coating Fe 3 O 4 nanoparticles with a hydrated deep eutectic solvent synthesized from choline chloride and urea, in which water was rationally introduced to tailor the solvent viscosity and modulate the hydrogen-bonded network. The prepared ferrofluid was used for the dispersive liquid-liquid microextraction of bisphenols in edible oil followed by the determination with high performance liquid chromatography. The integration of the hydrated deep eutectic solvent and Fe 3 O 4 nanoparticles enable efficient mass transfer, rapid phase separation, and convenient practical implementation. Molecular dynamics simulation was employed to reveal the underlying extraction mechanism. Under the optimum conditions, excellent performance of linearity ranged from 50 to 5000 μg L −1 (R 2 ≥ 0.9990), limit of detection (2.4–4.6 μg L −1 ), precision (RSDs ≤5.6%) and extraction recoveries (91.32%–95.91%) were achieved, which suggested a practicable alternative route for the determination of bisphenols in various edible oils.
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JOURNAL OF MASS SPECTROMETRY
·
2026
·Vol. 61
·期 2
·e70032
·
IF 2
Guanyu Lu,Guohuan Zhang,Yiqiu Wei,Peiqi Luo
Silver ion was applied in paper spray ionization mass spectrometry (PSI MS) to assist the ionization of bisphenols and derivatives including bisphenol A (BPA), bisphenol B (BPB), and bisphenol A bis (allylether) (BPA-BAE). By using the silver ion assisted paper spray ionization (SIA PSI), the intensities of BPA, BPB, and BPA-BAE were improved approximately 62, 90, and 58 times under positive mode and 1900, 1980, and 23 250 times under negative mode. Linear relationships for BPA were established within the concentration range of 0.002–1 mM, exhibiting strong correlation coefficients. The limit of detection for BPA can achieve 7.4 × 10 −5 mM. BPA in plastic sample and complex biological samples were also successfully detected by SIA PSI.
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