基于内滤效应机理的新型荧光碳点定量检测苏丹红

IF 4.3 2区化学 Q1 SPECTROSCOPY

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy Pub Date : 2025-04-08 DOI:10.1016/j.saa.2025.126213

Yingying Wang , Linping Ma , Shaogui Wu

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引用次数: 0

摘要

苏丹红是一种致癌染料，由于食品安全问题，需要有效的检测方法。本研究以天冬酰胺为碳源，采用一锅水热法合成了S， P共掺杂蓝色发射碳点（BSP-CDs）。由于内部滤光效应，BSP-CDs具有优异的光学性能、环境稳定性和选择性荧光猝灭。利用这些特性开发了一种灵敏、快速的“开-关”荧光传感系统，用于苏丹红检测。该传感器的线性检测范围为50 ~ 175 μM，检出限为2.11 μM，在实际水样中具有较高的准确度和回收率。这项工作为苏丹红监测提供了一种绿色、经济、高度可复制的方法，对食品安全和环境保护具有重要意义。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Advanced fluorescent carbon dots for quantitative detection of Sudan Red via inner filter effect mechanism

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Advanced fluorescent carbon dots for quantitative detection of Sudan Red via inner filter effect mechanism

Food safety concerns regarding Sudan Red, a carcinogenic dye, necessitate effective detection methods. This study introduces S, P co-doped blue-emitting carbon dots (BSP-CDs), synthesized via a one-pot hydrothermal method using asparagine as the carbon source. BSP-CDs exhibit excellent optical properties, environmental stability, and selective fluorescence quenching due to the inner filter effect. These properties were utilized to develop a sensitive and rapid “on-off” fluorescence sensing system for Sudan Red detection. The sensor demonstrated a linear detection range of 50–175 μM and a detection limit of 2.11 μM, with high accuracy and recovery rates in real-world water samples. This work offers a green, economical, and highly reproducible approach for Sudan Red monitoring, with significant implications for food safety and environmental protection.

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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.