Accurate and efficient detection of ClO⁻ was extremely important due to the harm of ROS in the environment and organism. In this paper, yellow fluorescent N,O-CDs were successfully prepared by the solvothermal method. The microscopic size of the N,O-CDs was approximately spherical with an average particle size of 4.8 ± 0.8 nm. The fluorescence quantum yield in ethanol solution was calculated as 10.5 % using fluorescein as the standard reference. The as-fabricated N,O-CDs had high sensitivity and low detection limit (7.5 µM) for quantitatively detecting ClO⁻ with a linear range from 0.07 mM to 0.16 mM. The probe not only shows good selectivity and anti-interference to metal ions, anions and amino acids but also has excellent light stability and thermal stability. Also, a wide selection range for pH was demonstrated.

Graphical Abstract

中文翻译：

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黄色荧光N,O-CDs的制备及其在ClO检测中的应用 −

由于 ROS 对环境和生物体的危害，准确有效地检测 ClO ^{-非常重要。}本文采用溶剂热法成功制备了黄色荧光N,O-CDs。N,O-CDs 的微观尺寸近似球形，平均粒径为 4.8 ± 0.8 nm。使用荧光素作为标准参考，乙醇溶液中的荧光量子产率计算为 10.5%。制造的 N,O-CD 具有高灵敏度和低检测限 (7.5 µM) 用于定量检测 ClO ^-线性范围为 0.07 mM 至 0.16 mM。该探针不仅对金属离子、阴离子和氨基酸具有良好的选择性和抗干扰性，而且具有优异的光稳定性和热稳定性。此外，还证明了广泛的 pH 值选择范围。

图形概要