Surface-enhanced resonance Raman spectroscopy as an ancillary high-performance liquid chromatography dectector for nitrophenol compounds

1989 ◽  
Vol 61 (8) ◽  
pp. 888-894 ◽  
Author(s):  
Fan. Ni ◽  
Lana. Thomas ◽  
Therese M. Cotton
Keyword(s):  
Raman Spectroscopy ◽  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
High Performance ◽  
Resonance Raman Spectroscopy ◽  
Resonance Raman ◽  
Surface Enhanced

Surface-Enhanced Resonance Raman Spectroscopy as an Identification Tool in Column Liquid Chromatography

2000 ◽  
Vol 72 (22) ◽  
pp. 5718-5724 ◽  
Author(s):  
Reza M. Seifar ◽  
Maarten A. F. Altelaar ◽  
Reyer J. Dijkstra ◽  
Freek Ariese ◽  
Udo A. Th. Brinkman ◽  
...  
Keyword(s):  
Column Liquid Chromatography ◽  
Raman Spectroscopy ◽  
Liquid Chromatography ◽  
Resonance Raman Spectroscopy ◽  
Resonance Raman ◽  
Surface Enhanced ◽  
Identification Tool

scholarly journals Time-resolved surface-enhanced resonance Raman spectro-electrochemistry of heme proteins

2010 ◽  
Vol 24 (1-2) ◽  
pp. 125-129 ◽  
Author(s):  
Marc Grosserueschkamp ◽  
Christoph Nowak ◽  
Wolfgang Knoll ◽  
Renate L. C. Naumann
Keyword(s):  
Heme Proteins ◽  
High Performance ◽  
Resonance Raman Spectroscopy ◽  
Resonance Raman ◽  
Excitation Wavelength ◽  
Silver Surface ◽  
Rotating Disc ◽  
Measuring Cell ◽  
Surface Enhanced ◽  
Silver Substrate

Heme proteins such as cytochrome c (cc) play a fundamental role in many biological processes. Surface-enhanced resonance Raman spectroscopy (SERRS) combined with electrochemical methods is an ideal tool to study the redox processes of heme proteins. In this context we designed a new measuring cell allowing for simultaneous electrochemical manipulation and high sensitive SERRS measurements of heme proteins. The measuring cell is based on an inverted rotating disc electrode for excitation by using a confocal Raman microscope. Furthermore, we developed a SER(R)S-active silver modified silver substrate for spectro-electrochemical applications. For this purpose silver nanoparticles (AgNPs) were adsorbed on top of a planar silver surface. The substrate was optimized for an excitation wavelength of 413 nm corresponding to the resonance frequency of heme structures. An enhancement factor of 105was achieved. The high performance of the new measuring cell in combination with the new silver substrate was demonstrated using cc as a reference system.

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