基于表面分子印迹识别的石墨烯量子点增强化学发光传感器检测四溴双酚A

IF 4.6 2区化学 Q1 SPECTROSCOPY

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy Pub Date : 2025-09-22 DOI:10.1016/j.saa.2025.126981

AnYuan Tong, Nan Xu, Ting Yan, FuBin Chen, ChunYan Yang

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引用次数: 0

摘要

本文以二氧化硅纳米颗粒为载体，制备了对四溴双酚A （TBBPA）具有高选择性的表面分子印迹聚合物。通过加入氮掺杂石墨烯量子点（NGQDs）来增强鲁米诺- h2o2体系的化学发光强度，发现TBBPA可以有效抑制该体系的化学发光信号。基于上述原理，将ngqds敏化的Luminol-H2O2化学发光系统与特异性识别材料SiO2@TBBPA MIP结合，构建了分子印迹技术-化学发光（MIT-CL）传感器，用于检测环境水样中的TBBPA。在最佳条件下，传感器的线性检测范围为8.0 × 10−10 ~ 2.0 × 10−8 mol/L，检出限（3σ/k）为3.2 × 10−11 mol/L。采用MIT-CL法对水样中TBBPA进行检测，回收率为96.25% ~ 107.50%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Graphene quantum dot-enhanced Chemiluminescence sensor based on surface molecular imprinting recognition for the detection of Tetrabromobisphenol A

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Graphene quantum dot-enhanced Chemiluminescence sensor based on surface molecular imprinting recognition for the detection of Tetrabromobisphenol A

Herein, silica nanoparticles were employed as the carrier for surface molecular imprinted polymer with high selectivity for Tetrabromobisphenol A (TBBPA). Nitrogen-doped graphene quantum dots (NGQDs) were incorporated to enhance the chemiluminescence intensity of the Luminol-H₂O₂ system, as TBBPA was found to effectively suppress the chemiluminescence signal of this system. Based on these principles, a molecular imprinting technique-chemiluminescence (MIT-CL) sensor was developed by integrating the NGQDs-sensitized Luminol-H₂O₂ chemiluminescence system with the specific recognition material SiO₂@TBBPA MIP was constructed to detect TBBPA in environmental water samples. Under the optimal conditions, the sensor exhibited a linear detection range of 8.0 × 10⁻¹⁰-2.0 × 10⁻⁸ mol/L, with the detection limit (3σ/k) of 3.2 × 10⁻¹¹ mol/L. The illustrated MIT-CL method was utilized for the detection of TBBPA in water samples, yielding satisfactory recovery rates ranging from 96.25 % to 107.50 %.

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来源期刊

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 物理-光谱学

CiteScore

8.40

自引率

11.40%

发文量

1364

审稿时长

40 days

期刊介绍： Spectrochimica Acta, Part A: Molecular and Biomolecular Spectroscopy (SAA) is an interdisciplinary journal which spans from basic to applied aspects of optical spectroscopy in chemistry, medicine, biology, and materials science. The journal publishes original scientific papers that feature high-quality spectroscopic data and analysis. From the broad range of optical spectroscopies, the emphasis is on electronic, vibrational or rotational spectra of molecules, rather than on spectroscopy based on magnetic moments. Criteria for publication in SAA are novelty, uniqueness, and outstanding quality. Routine applications of spectroscopic techniques and computational methods are not appropriate. Topics of particular interest of Spectrochimica Acta Part A include, but are not limited to: Spectroscopy and dynamics of bioanalytical, biomedical, environmental, and atmospheric sciences, Novel experimental techniques or instrumentation for molecular spectroscopy, Novel theoretical and computational methods, Novel applications in photochemistry and photobiology, Novel interpretational approaches as well as advances in data analysis based on electronic or vibrational spectroscopy.