Thiram sers
WebFeb 21, 2015 · We systematically investigated the size- and shape-dependent SERS activities of plasmonic core-shell nanoparticles towards detection of the pesticide thiram. … WebSERS activity was investigated using MB and thiram adsorbed on the as- 21 22 grown graphene exchanged with Ag+ ions (referred to exchanged Ag). Figure S6 compares 23 24 25 the SERS spectra of 1.7 x 10-5 M MB adsorbed on all the different platforms employed in 26 27 this work which includes Ni foam, as-grown graphene, and as-treated graphene ...
Thiram sers
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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. WebMay 30, 2024 · In summary, the SERS spectrum of thiram traces was recorded using SERS substrate which is an array of overlapping silver nanodendrites deposited on silicon. …
WebMar 14, 2024 · In this work, Au–Ag nanoparticles (NPs) with controllable morphologies are synthesized and used as SERS-active substrates for the detection of trace thiram. … WebThiram can be identified by the SERS peaks located at 560 cm −1 (S-S stretching), 933 cm −1 (CH3N stretching), 1144 cm −1 (C-N stretching and CH3 rocking), and 1382 cm −1 (C-N …
WebSurface enhanced Raman spectroscopy (SERS) is a sensitive vibrational spectroscopy technique which has recently been employed for the analysis of a variety of analytes in water, ranging from pharmaceuticals to pesticides. In this work, SERS sensors constructed using gold nanorod (AuNR) arrays are optimized and then utilized for the rapid and ... WebAt present the surface-enhanced Raman scattering (SERS) is emerging as an ultrasensitive method for detection of thiram traces. In this report we show that by using home-made …
WebFeb 1, 2024 · SERS is a surface-sensitive technique and works on the principle of Raman scattering. High sensitivity, rapid detection, and nondestructive detection make SERS …
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 … portavassoiWebSep 1, 2024 · As shown in Figure 4f, SERS spectra of thiram clearly demonstrated the shell thickness-dependent sensitivity of SERS detection. As the amounts of HAuCl 4 increased from 200 μL to 800 μL, SERS activity of the obtained core-shell substrates with the decreased thickness shell from 29.41 nm to 5.88 nm was increased to the maximum. portatutto jimnyWebJan 15, 2024 · In this study, we developed a new SERS detection platform based on polyacrylamide hydrogel-enclosed plasmonic gold nanoparticle aggregates (PAH-AuANs). … porte hyttan ikeaWebJan 25, 2024 · Thus, low concentrations of pesticides (up to 1 μM thiram) were measured. The SERS substrate was attached to the curved surface of an apple to demonstrate its advantages, such as the flexibility and easy attachability of tattoo paper, and its feasibility was verified by measuring 1 μM thiram on the apple’s surface. Due to its economic cost ... portatutto nissan qashqaiWebIn 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 … portavasi altiThiram (TRM) is a fungicide used in agriculture and the rubber industry on a large scale. However, the excess use of TRM can cause harmful effects to living systems. Herein, silver nanocubes (Ag NCs) are demonstrated as an efficient substrate for the detection of TRM at ultra-low concentrations. portavasi kartellWebBy 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. porte avg nissan juke