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Enrica Droghetti, Francesco P. Nicoletti, Luca Guandalini, Gianluca Bartolucci and Giulietta Smulevich SERS detection of benzophenones on viologen functionalized Ag nanoparticles: application to breakfast cereals Journal of Raman Spectroscopy 44

Version of Record online: 18 MAR 2013 | DOI: 10.1002/jrs.4273

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Surface-enhanced Raman scattering (SERS) spectroscopy using lucigenin as a molecular assembler in the functionalization of silver nanoparticles allowed us to reveal the presence of benzophenone and 4-methyl benzophenone in spiked breakfast cereal samples. The detection limit was at trace level, 25 ppm. The samples were analyzed with both SERS spectroscopy and gas chromatography-tandem mass spectrometry. For concentration above 70 μM (25 ppm), there was a very good agreement between the two techniques.

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