Near Infrared Surface-enfanced Raman Scattering of h-BN/Au Nanocomposites at Enrofloxacin Detection
As the enrofloxacin vestigein food is a threat to human health and environmental safety,it is important to establish rapid and sensitive antibiotic detections for it.The h-BN/Au nanocomposite was successfully synthesized by xenon lamp irradiation in liquid phase,realizing the low concentration detection of dye molecule crystal violet(CV)(10-12 M),and meeting the ultra-sensitive requirement of the trace detection of NIR-SERS.The experimental results showed that the NIR-SERS activity of h-BN/Au nanocomposites was about 2.4 times that of Au nanoparticles under 785nm excited.At the same time,under the high temperature condition of 200℃,～90%of the NIR-SERS activity can be maintained for 7 days.The h-BN/Au nanocomposite realized the detection of the concentration of Enrofloxacin(10-3M～10-7 M),and its NIR-SERS signal intensity showed a good linear relationship with the concentration.The results showed that real-time monitoring of probe molecule enrofloxacin with temperature was realized based on h-BN/Au nanocomposite,which provides the experimental basis for quantitative detection of antibiotics in public security.
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