Preparation of Surface Imprinting Polymer Capped Mn-Doped ZnS Quantum Dots and Their Application for Chemiluminescence Detection of 4-Nitrophenol in Tap Water

摘要

In this paper, Mn-doped ZnS quantum dots (QDs) cappednby a molecularly imprinted polymer (MIP) were synthesized.nThe results showed a high selectivity of the MIPcappednMn-doped ZnS QDs toward the template moleculen(4-nitrophenol) by QD fluorescence quenching. The applicationnof MIP-capped Mn-doped ZnS QDs to thenchemiluminescence (CL) system was also studied usingna KIO4-H2O2 system. This application combines thengood selectivity of MIP with the high sensitivity of CL.nThe linear range of this CL system is from 0.1 to 40nμM, and the detection limit (DL) for 4-nitrophenol innthe water can reach 76 nM. The method was also usednin the real water samples, and the recoveries can fallnin the range of 91-96%.