Abstract In this study, an optosensing composite was fabricated by coating a molecularly imprinted polymer (MIP) layer onto CdTe quantum dots (MIP-QDs) to develop a fluorescent sensor for the determination of tetrabromobisphenol-A (TBBPA). The resulting MIP-QDs composite was well characterized and had ideal properties of morphology and photoluminescence. Under the optimized experiment conditions, this fluorescent sensor exhibited a good linearity with TBBPA covering the concentration range of 1.0–60.0 ng/mL and the detection limit was as low as 3.6 ng/g. This developed MIP-QDs sensor was successfully employed to detect TBBPA in electronic waste (e-waste) samples for the first time. The mean recoveries were in the range from 89.6% to 107.9% with the relative standard deviation below 6.2%, which were in accordance with the results of HPLC-UV method. The average concentration of TBBPA in electric fan and circuit board samples were 260.20 and 707.30 mg/kg, respectively. This study provided a simple, rapid, highly sensitive and selective method to detect TBBPA in e-waste samples.

中文翻译：

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使用分子印迹聚合物涂覆的量子点检测电子废物样品中四溴双酚 A 的高灵敏度和选择性荧光传感器

摘要 在本研究中，通过将分子印迹聚合物 (MIP) 层涂覆到 CdTe 量子点 (MIP-QD) 上来制备光传感复合材料，以开发用于测定四溴双酚 A (TBBPA) 的荧光传感器。所得 MIP-QDs 复合材料具有良好的特征，并具有理想的形态和光致发光特性。在优化的实验条件下，该荧光传感器与 TBBPA 表现出良好的线性，覆盖浓度范围为 1.0-60.0 ng/mL，检测限低至 3.6 ng/g。这种开发的 MIP-QDs 传感器首次成功用于检测电子废物（e-waste）样品中的 TBBPA。平均回收率为89.6%～107.9%，相对标准偏差低于6.2%，与HPLC-UV法结果一致。电风扇和电路板样品中TBBPA的平均浓度分别为260.20和707.30 mg/kg。本研究提供了一种简单、快速、高灵敏度和选择性的方法来检测电子废物样品中的 TBBPA。