A molecularly imprinted nanoprobe incorporating Cu2O@Ag nanoparticles with different morphologies for selective SERS based detection of chlorophenols.
作者： Yue Li , Yan Wang , Mingchao Wang , Jinyue Zhang , Qingwei Wang
DOI: 10.1007/S00604-019-4052-Y
关键词:
摘要: In a new method for the determination of trace levels chlorophenols in river waters, detection via surface-enhanced Raman scattering (SERS) is combined with recognition by molecularly imprinted polymer (MIP). Nanoparticles type Cu2O@Ag were synthesized attaching silver particles to surface Cu2O nanoparticles. The then coated layer MIP that was obtained atom transfer radical polymerization using from methacrylic acid as monomers and 2,6-dichlorophenol template. morphology found be flower-like. Cu2O@Ag-MIPs displays strong SERS effect. Following removal template rinsing mixture solution methanol/acetic (9/1, v/v), material used selectively bind 2,6-dichlorophenol, 2,4-dichlorophenol 2,4-dichlorophenol. peak intensity at 1580 cm−1 increases linearly concentration various range 10 nM 1 mM, limit 5.8 nM. imprinting factor 4.62. applied analysis (spiked) water, recoveries ranging 91.8 115.4% relative standard deviations <4.5%.
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