scholarly journals Towards improved quantitative analysis using surface-enhanced Raman scattering incorporating internal isotope labelling

2017 ◽  
Vol 9 (47) ◽  
pp. 6636-6644 ◽  
Author(s):  
Abdu Subaihi ◽  
Yun Xu ◽  
Howbeer Muhamadali ◽  
Shaun T. Mutter ◽  
Ewan W. Blanch ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Raman Scattering ◽  
Quantitative Data ◽  
Surface Enhanced Raman Scattering ◽  
Molecular Characterisation ◽  
Isotope Labelling ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Surface-enhanced Raman scattering can be used for the molecular characterisation of different molecules and isotopologues can be used to generate highly quantitative data.

Surface-Enhanced Raman Scattering Quantitative Analysis of Ethanol Drop-Coating Silver Nanocubes on Gold Film

2021 ◽  
Vol 21 (9) ◽  
pp. 4715-4725
Author(s):  
Ziang Zhou ◽  
Yibin Zhu ◽  
Peishen Li ◽  
Changzheng Wang ◽  
Yunyun Wu ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Raman Scattering ◽  
Gold Film ◽  
Rhodamine 6G ◽  
Surface Enhanced Raman Scattering ◽  
Water Mixture ◽  
Silver Nanocubes ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Surface-enhanced Raman scattering (SERS) has been a sensitive tool for the accurate detection and analysis of a wide range of molecules. In the present study, a simple and repeatable approach is developed for the fabrication of a silver nanocubes/polyelectrolyte/gold film (Ag nanocubes/PE/Au film) sandwich structure as SERS substrate. An ethanol-water mixture, instead of pure water, is used as solvent to reduce the coffee ring effect by the drop coating deposition method, such that Ag nanocubes are distributed evenly on the gold film surface with polyelectrolyte as the middle layer. In 15 repeated measurements of a 10-7 M rhodamine 6G solution, the intensity of the Raman peak at 609 cm-1 exhibits a relative standard deviation less than 20%. Significantly, the sandwich substrate exhibits excellent point-to-point repeatability and sample to sample reproducibility, and may be used for real-life quantitative analysis, as demonstrated by the rapid diagnosis of dual analytes of rhodamine 6G and crystal violet.

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