基于 CdTe QDs 和聚苯乙烯微球静电自组装的信号放大荧光探针快速检测痕量孔雀石绿。
Rapid detection of trace malachite green using a fluorescence probe based on signal amplification through electrostatic self-assembly of CdTe QDs and polystyrene microsphere.
机构信息
College of Food and Biological Engineering, Jimei University, Xiamen 361021, China.
College of Food and Biological Engineering, Jimei University, Xiamen 361021, China.
出版信息
Mar Pollut Bull. 2020 Feb;151:110812. doi: 10.1016/j.marpolbul.2019.110812. Epub 2019 Dec 10.
A fluorescence probe was delicately designed for the detection of malachite green (MG) in water and fish samples. Through the electrostatic self-assembly of CdTe QDs on the surface of polystyrene (PS) microspheres, the fluorescence signal was amplified. After grafting molecularly imprinted film, the fluorescence probe of MIP@PS@CdTe was fabricated and applied to the detection of MG based on fluorescence quenching. The linear range of MG detection was 0.01-20 μmol L, and the detection limit was 4.7 nmol L (3σ, n = 9) which was much lower than those of the previous reports. The recoveries of MG in aquaculture water and fish samples ranging from 87.6% to 105.4% illustrated that the detection by MIP@PS@CdTe probe was accurate and reliable.
设计了一种荧光探针用于检测水样和鱼样中的孔雀石绿（MG）。通过 CdTe QDs 在聚苯乙烯（PS）微球表面的静电自组装，放大了荧光信号。接枝分子印迹膜后，制备了 MIP@PS@CdTe 荧光探针，并基于荧光猝灭法用于 MG 的检测。MG 的检测线性范围为 0.01-20 μmol·L，检测限为 4.7 nmol·L（3σ，n=9），远低于以往的报道。在水产养殖用水和鱼样中的 MG 回收率在 87.6%到 105.4%之间，表明 MIP@PS@CdTe 探针的检测准确可靠。
Zotero 插件