WebBy measuring the Thiram's characteristic peak intensity at 1371 cm-1, the SERS method could distinguish Thiram from other pesticide residues. A good linear relationship between the peak intensity at 1371 cm-1 and thiram's concentration was established at the range from 0.01 ppm to 100 ppm and the Limit of detection is 0.0048 ppm. WebOct 17, 2024 · The SERS spectra of thiram of different concentrations are shown in Figure 4B. The quantitative analysis showed the increase in spectral intensity with the rise in the concentration of thiram. Notably, the as-prepared [email protected] NRs arrays substrate could detect thiram as low as 10 −9 mol/L, with a LOD of 0.018 mg/L.
Cost-Effective and Facile Fabrication of a Tattoo Paper-Based SERS …
WebMar 13, 2024 · The red SERS spectrum in Figure 5 showed fingerprint Raman vibrations of both thiram and 4Mpy molecules when compared with those obtained from sole analyte detection. The peaks at 556, 1144, 1375, and 1506 cm −1 can be assigned to ν(S–S) band, ρ (HCN)+(CH 3 ), δ s (CH 3 ) coupled with ν(C–N) and δ as (CH 3 ) coupled with υ(C–N) of ... WebIn this paper, we are relating a significant improvement of the SERS effect achieved with assembled Au/ZnO nano-urchins. This improvement is realized thanks to an excellent capacity of adsorption (denoted K) for thiram molecules on these plasmonic nano-urchins, which is a key point to be taken into account for obtaining a SERS spectrum.Moreover, … check index python
Politics Faculty - University of California, Santa Cruz
WebA three-dimensional (3D) surface-enhanced Raman scattering (SERS) substrate composed of gold nanoparticles (AuNPs) self-assembled covalent organic frameworks (COFs) was fabricated via the electrostatic interaction between positively charged COFs and negatively charged AuNPs, which exhibited excellent SERS performance and were successfully … WebAbstract. Surface-enhanced Raman spectroscopy (SERS), a surface-sensitive technique, allows the practicability of detecting chemical compounds in ultra-low concentration. In … WebIn this paper, we are relating a significant improvement of the SERS effect achieved with assembled Au/ZnO nano-urchins. This improvement is realized thanks to an excellent … check index out of range python