Abstract：
A dual-emission ratiometric fluorescence sensor (CDs@CdTe@MIP) with a self-calibration function was successfully constructed for AMO detection. In the CDs@CdTe@MIP system, non-imprinted polymer-coated CDs and molecule-imprinted polymer-coated CdTe quantum dots were used as the reference signal and response elements, respectively. The added AMO quenched the fluorescence of the CdTe quantum dots, whereas the fluorescence intensity of the CDs remained almost unchanged. The AMO concentration was monitored using the fluorescence intensity ratio (log(I647/I465)0/(I647/I465)) to reduce interference from the testing environment. The sensor with a low detection limit of 0.15 μg/L enabled detection of the AMO concentration within 6 min. The ratiometric fluorescence sensor was used to detect AMO in spiked pork samples; it exhibited a high recovery efficiency and relative standard deviation (RSD) of 97.94-103.70% and 3.77-4.37%, respectively. The proposed highly sensitive and selective platform opens avenues for sensitive, reliable, and rapid determination of pharmaceuticals in the environment and food safety monitoring using ratiometric sensors.
摘要：
成功构建了具有自校准功能的双发射比率荧光传感器（CD@CdTe@MIP），用于AMO检测。在CD@CdTe@MIP系统中，非印迹聚合物涂层CD和分子印迹聚合物涂层CdTe量子点被用作参考信号和响应元件，分别。添加的AMO猝灭了CdTe量子点的荧光，而CD的荧光强度几乎保持不变。使用荧光强度比(log(I647/I465)0/(I647/I465))监测AMO浓度以减少来自测试环境的干扰。低检测限为0.15μg/L的传感器能够在6分钟内检测AMO浓度。比率荧光传感器用于检测加标猪肉样品中的AMO。它表现出很高的回收率和相对标准偏差（RSD）分别为97.94-103.70％和3.77-4.37％，分别。所提出的高度敏感和选择性的平台为敏感，可靠,以及使用比率传感器快速测定环境中的药品和食品安全监测。
