17 May 2016 Detection of chemical residues in food oil via surface-enhanced Raman spectroscopy
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Abstract
Highly ordered hexagonally patterned Ag-nanorod (Ag-NR) arrays for surface-enhanced Raman scattering (SERS) detection of unhealthy chemical residues in food oil was reported, which was obtained by sputtering Ag on the alumina nanotip arrays stuck out of conical-pore anodic aluminum oxide (AAO) templates. SERS measurements demonstrate that the as-fabricated large-scale Ag-nanostructures can serve as highly sensitive and reproducible SERS substrates for detection of trace amount of chemicals in oil with the lower detection limits of 2×10-6 M for thiram and 10-7 M for rhodamine B, showing the potential of application of SERS in rapid trace detection of pesticide residues and illegal additives in food oils.
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Kexi Sun, Kexi Sun, Qing Huang, Qing Huang, "Detection of chemical residues in food oil via surface-enhanced Raman spectroscopy", Proc. SPIE 9864, Sensing for Agriculture and Food Quality and Safety VIII, 98640B (17 May 2016); doi: 10.1117/12.2229812; https://doi.org/10.1117/12.2229812
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