Bead injection for surface enhanced Raman spectroscopy: automated on-line monitoring of substrate generation and application in quantitative analysis

The Analyst ◽  
2002 ◽  
Vol 127 (10) ◽  
pp. 1365-1369 ◽  
Author(s):  
María José Ayora Cañada ◽  
Antonio Ruiz Medina ◽  
Johannes Frank ◽  
Bernhard Lendl
Keyword(s):  
Raman Spectroscopy ◽  
Quantitative Analysis ◽  
Surface Enhanced Raman Spectroscopy ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
On Line ◽  
Bead Injection

Fast and Quantitative Analysis of Ediphenphos Residue in Rice Using Surface-Enhanced Raman Spectroscopy

2018 ◽  
Vol 83 (4) ◽  
pp. 1179-1185 ◽  
Author(s):  
Shizhuang Weng ◽  
Fang Wang ◽  
Ronglu Dong ◽  
Mengqing Qiu ◽  
Jinling Zhao ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Quantitative Analysis ◽  
Surface Enhanced Raman Spectroscopy ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

On-Line Spectroscopic Characterization of Sodium Cyanide with Nanostructured Gold Surface-Enhanced Raman Spectroscopy Substrates

2002 ◽  
Vol 56 (12) ◽  
pp. 1524-1530 ◽  
Author(s):  
Peter M. Tessier ◽  
Steven D. Christesen ◽  
Kate K. Ong ◽  
Eva M. Clemente ◽  
Abraham M. Lenhoff ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Surface Enhanced Raman Spectroscopy ◽  
Sodium Cyanide ◽  
Raman Signal ◽  
Gold Films ◽  
Porous Gold ◽  
Wide Range ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
On Line

To implement surface-enhanced Raman spectroscopy as a practical detection method, highly enhancing, stable, and reproducible substrates need to be fabricated in an efficient manner, and their performance in different solution environments should be well characterized. In this work structured porous gold films have been fabricated using colloidal crystals to template gold nanoparticles. These films were integrated into an on-line flow chamber and used to study the effects of pH and other additives on the detection of sodium cyanide. The gold films proved to be highly enhancing and were used to detect cyanide over a wide range of pH values in the concentration range of ∼2 to 200 ppb. The Raman signal intensity could be increased by lowering the pH after the adsorption of cyanide, which was likely due to both a change in the ionization state and a conformational change of the bound molecules. The peak intensity could also be enhanced multifold by treating the substrate with silver nitrate. Cyanide could be removed from the substrates using hydrochloric acid, although this also passivated the structures, and the activity could only be restored partially with tannic acid. These results provide a rational method to optimize the online detection of cyanide in water.

Rapid separation and on-line detection by coupling high performance liquid chromatography with surface-enhanced Raman spectroscopy

RSC Advances ◽  
2015 ◽  
Vol 5 (59) ◽  
pp. 47640-47646 ◽  
Author(s):  
Wei Wang ◽  
Minmin Xu ◽  
Qinghua Guo ◽  
Yaxian Yuan ◽  
Renao Gu ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
High Performance ◽  
Surface Enhanced Raman Spectroscopy ◽  
Line Detection ◽  
Food Science ◽  
Rapid Separation ◽  
Complex Samples ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
On Line

The combined HPLC-SERS system was developed to a powerful tool for rapid separation and structural recognition of complex samples in food science and environmental monitoring.

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