Raman Spectroscopy

Feb 01, 2015
Spectroscopy
There are multiple circumstances where characterization of a collection of particles has value to analysts. In some environments, materials are plagued by particulate contamination that impacts product quality..
Dec 01, 2014
Spectroscopy
Segmented channel waveguides have been fabricated in single-crystal KTiOPO4 through a topotactic process of partial cation exchange. The ion-exchanged waveguides maintain the high nonlinear susceptibility of KTiOPO4 to function as frequency doubling laser light sources
Dec 01, 2014
BioPharm International
Implementing process analytical technology for bioprocessing presents unique challenges, but the recent emphasis on establishing a thorough understanding of the manufacturing process is a key enabler of PAT approaches.
Nov 18, 2014
Wavelength
By Spectroscopy Editors
Raman microscopy is a promising technique for visualizing the distribution of molecules in cells. However, along with the benefits come challenges. This interview with Katsumasa Fujita, an associate professor in the Department of Applied Physics at Osaka University in Osaka, Japan, discusses his use of this technique for the imaging of live cells.
Nov 01, 2014
Spectroscopy
By Spectroscopy Editors
A method for removing fluorescence-induced backgrounds from Raman spectra using sequentially shifted excitation (SSE) is described. The method uses a temperature-tuned, distributed Bragg reflector diode laser to produce the multiple excitation spectra required to implement the SSE algorithm. Examples applying the SSE method to analysis of motor oils and edible oils are given.
Oct 01, 2014
Spectroscopy
Metal oxides often occur in crystals where there are no molecular units. Here, we provide an introduction to the concepts that need to be understood when analyzing metal oxides in materials such as paint, ceramic pigments, corrosion films, catalysts, and minerals.
Jun 24, 2014
Wavelength
By Spectroscopy Editors
The physicochemical properties of drugs are often very diverse and challenging to analyze. Spectroscopy recently spoke with Dr. Lynne Taylor of the Department of Industrial and Physical Pharmacy at Purdue University, and the 2014 Coblentz Society Craver Award winner, about her on-going research using Raman and IR spectroscopy to study drugs and drug excipients - and the interactions of the two.
Jun 01, 2014
Special Issues
Melamine is a dangerous substance when it is used to increase the apparent protein content of food. In this article, the use of novel gold nanoparticles for surface-enhanced Raman spectroscopy (SERS) measurements with raster orbital scanning sampling is described for the detection of melamine and other food contaminants.
Jun 01, 2014
Special Issues
The Raman technique is gaining widespread acceptance as an investigative tool for forensic applications.
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