▎ 摘　　要

NOVELTY - Preparing double-emission molecularly imprinted polymer fluorescent sensor comprises (1) preparing nitrogen-doped graphene quantum dots (N-GQDs) and rough core-shell silica (rSiO2) doped QDs: obtaining blue-emitting N-GQDs by mixing citric acid and urea by hydrothermal reaction, dissolving cadmium selenide/zinc sulfate quantum dot and aqueous ammonia in water, adding ethyl orthosilicate to obtain mixed solution, reacting, obtaining the rSiO2 doped QDs, (2) preparing the dual-em-MIPs fluorescent: sequentially adding cyclohexane, pretilachlor and 3-aminopropyl triethoxy silane (APTES) to obtain the complex, mixing N-GQDs, r-SiO2 doped QDs, ethyl orthosilicate and aqueous ammonia, stirring in the dark, repeatedly eluting until the pretilachlor is not detected and obtaining double-em-MIPs fluorescent sensor. USE - The sensor is useful in detecting the pretilachlor (claimed) accumulation in water and aquatic organisms fish. ADVANTAGE - The method enables to prepare double-emission molecularly imprinted polymer fluorescent sensor that has high sensitivity, good characteristics, combined with radio frequency (RF) model and successfully applied to the detection of the concentration of the pretilachlor in the water environment and aquatic organism. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: a double-emission molecularly imprinted polymer fluorescent sensor, which is prepared by above method; measuring pretilachlor by using the double-emission molecularly imprinted polymer fluorescence sensor; and monitoring pretilachlor in real time.