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| Study on Raman Enhancement Technology for High Sensitivity Detection of Paper Additives |
| Received:September 06, 2019 |
| DOI：10.11980/j.issn.0254-508X.2019.10.006 |
| Key Words:Raman enhancement paper additives silver nanoparticles |
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| Abstract:In this project, high-sensitivity spherical optical fiber probes coated with silver nanoparticles and detected by portable surface enhanced Raman scattering (SERS) were prepared by sol self-assembly method. The reusability of the probe was achieved by using silver nanostructures coated with Parylene-C nano-films, and there was no change after 50 times of reuse of the coated Parylene-C nano-films, and the residual R6G molecule remained stable after 3 min of cleaning, while the peak value of the uncoated Parylene-C nano-films weakened after 10 times of rinsing, The residual R6G molecule remained stable, after 15 min of rinsing. Finally, the papers from four different manufacturers were tested by using the optical fiber probe coated with silver nanoparticles. The experiment showed that the optical fiber probe could detect the additives with lower concentration in the paper. The lowest concentration was 10-12 mol/L. |
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