Bisphenol A (BPA) is an environmental containment with toxic and hazardous characteristics towards all organisms. So, introducing a simple and sensitive sensor for its determination in the field is of importance. We applied Fe(II) -S₂O₈²⁻ Fenton-like reaction to design chemiluminescence and fluorescence sensing methods for BPA detection. In the chemiluminescence method, tungsten disulfide quantum dots (WS₂ QDs) were used as an enhancer to amplify (around 300-fold) the intensity of the ultra-weak Fe(II) -S₂O₈²⁻ CL reaction. The WS₂ QD-enhanced CL system was applied to design a simple and sensitive sensor for monitoring BPA at the range of 1.0–50 μM. Additionally, a ratiometric fluorescence sensor was designed for BPA assay in which WS₂ QDs and o-phenylenediamine (OPD) were applied as a reference and a fluorescence reporter, respectively. In the presence of BPA, the fluorescence intensity of ox-OPD, produced from the OPD-Fe(II) -S₂O₈²⁻ reaction, increased while that of WS₂ QDs was almost constant. The ratio of reporter fluorescence intensity to that of the reference was linearly proportional to the BPA concentration in the range of 2.5–75 μM. The developed methods were successfully applied for the determination of BPA in water samples.

双酚 A (BPA) 是一种对所有生物体都具有有毒和危险特性的环境污染物。因此，引入一种简单而灵敏的传感器进行现场测定具有重要意义。我们应用 Fe(II) -S ₂ O ₈ ²⁻ Fenton 反应设计用于 BPA 检测的化学发光和荧光传感方法。在化学发光方法中，使用二硫化钨量子点（WS ₂ QD）作为增强剂来放大（约300倍）超弱Fe(II) -S ₂ O ₈ ²⁻ CL反应的强度。WS ₂应用 QD 增强型 CL 系统设计了一种简单而灵敏的传感器，用于监测 1.0–50 μM 范围内的 BPA。此外，还设计了用于 BPA 测定的比例荧光传感器，其中 WS ₂ QD 和邻苯二胺 (OPD) 分别用作参考和荧光报告剂。在 BPA 存在下，OPD-Fe(II) -S ₂ O ₈ ²⁻反应产生的 ox-OPD 的荧光强度增加，而 WS ₂ QD 的荧光强度几乎恒定。报告荧光强度与参考荧光强度之比与 BPA 浓度在 2.5–75 μM 范围内呈线性正比。所开发的方法成功应用于水样中BPA的测定。