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- Rasco, Barbara A., et al. Show all 5 Authors
- Lebensmittel-Wissenschaft + [i.e. und] Technologie 2019
- Raman spectroscopy; apple juice; cations; diquat; gold; nanogold; nanoparticles; nanosilver; particle size; rapid methods; silver
- ... Twelve different Au nanoparticles (NPs; diameter, 19–87 nm) and Au–Ag core-shell NPs (diameters of core and particles: 19 nm, 35–91 nm; 43 nm, 66–127 nm) varying in size and the ratio of gold to silver were employed as surface enhanced Raman scattering (SERS) substrates for rapid analysis of herbicide diquat cation in apple juice. The minimum detectible concentrations for diquat cation standards w ...
- Rasco, Barbara A., et al. Show all 4 Authors
- Lebensmittel-Wissenschaft + [i.e. und] Technologie 2015 v.60 no.1 pp. 352-357
- apples; fruits; maximum residue limits; quantitative analysis; food matrix; least squares; models; carbaryl; chemometrics; vegetables; food safety; Raman spectroscopy
- ... Residual pesticides in fruits and vegetables are one of the major food safety concerns around the world. Surface-enhanced Raman spectroscopy (SERS) coupled with chemometric methods was applied for quantitative analysis of trace levels of carbaryl pesticide in apple. The lowest detectable level for carbaryl in apple was 0.5 μg g−1, which was sensitive enough for identifying apple contaminated with ...