Raman Spectroscopy / Ezine
Journal Highlight: Quantification of active ingredients in suppositories by FT-Raman spectroscopy
Date: Mar 4, 2013
Author: spectroscopyNOW
An efficient method for the quantitative determination of acetaminophen and diclofenac sodium in commercial suppositories based on partial least squares treatment of FT-Raman spectra is described.
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Ringing the changes: Environmental endocrine detection
Date: Mar 1, 2013
Author: David Bradley
Cyclodextrin, the natural starch ring molecule, can be used to create a sensitive coating on gold for surface enhanced Raman spectroscopic (SERS) detection of endocrine disrupters present in environmental water samples, according to a new study.
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Journal Highlight: Imaging of internal stress around a mineral inclusion in a sapphire crystal: application of micro-Raman and photoluminescence spectroscopy
Date: Feb 4, 2013
Author: spectroscopyNOW
A micro-Raman and photoluminescence imaging technique was developed for visualizing the internal stress fields in a sapphire crystal and applied to an Australian sapphire gemstone with a zircon inclusion.
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Viral detection: SERS sensitivity
Date: Feb 1, 2013
Author: David Bradley
The surface envelope and antigens from the zoonotic pathogens West Nile virus (WNV) and Rift Valley fever virus (RVFV) can now be detected with high sensitivity thanks to the development of an immunoassay based on surface-enhanced Raman scattering (SERS) spectroscopy.
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Journal Highlight: Polymorphic transformation of anhydrous caffeine upon grinding and hydrostatic pressurizing analyzed by low-frequency Raman spectroscopy
Date: Jan 7, 2013
Author: spectroscopyNOW
Low-frequency Raman investigations were carried out upon pressurizing and grinding both crystalline forms of anhydrous caffeine at room temperature, leading to the detection of metastable states under stress.
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Deposit detection: Spectroscopy against breast cancer
Date: Jan 7, 2013
Author: David Bradley
Minute deposits of calcium in breast tissue act as a marker for breast cancer. Diffuse reflectance spectroscopy has now been used to show how deposits in benign conditions can be distinguished from those present in the early stages of the disease.
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Journal of Raman Spectroscopy: Special Issue on Art and Archaeology
Date: Dec 3, 2012
Author: spectroscopyNOW
Don't miss these key papers from the International Congress on the Application of Raman Spectroscopy in art and archaeology. RAA 2011 focused on the analysis by means of Raman spectroscopy of materials related to cultural heritage and archaeology - pigments, dyes, inks, paper, polymers, glass, ceramics, resins, fibers, corrosion products, including topics related to natural heritage - gemstones, minerals, fossils, and some aspects involving forensic science. The Editorial and several papers are free to...
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Journal Highlight: The first in situ micro-Raman spectroscopic analysis of prehistoric cave art of Rouffignac St-Cernin, France
Date: Dec 3, 2012
Author: spectroscopyNOW
The first in situ micro-Raman spectroscopic study of prehistoric drawings found in the cave of Rouffignac-Saint-Cernin (Dordogne, France) was carried out using non-destructive analyses to identify carbon-based drawings.
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Man's best friend: Redundant
Date: Dec 1, 2012
Author:
A chip the size of a fingernail uses surface-enhanced Raman spectroscopy (SERS) to sniff out explosives and avoids the problem of bad dog days in airports and other security-sensitive environments. The system has the potential to be developed into a compact device resembling a smoke alarm to alert the authorities to a potentially explosive problem.
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Journal Highlight: Rapid detection of gasoline by a portable Raman spectrometer and chemometrics
Date: Nov 5, 2012
Author: spectroscopyNOW
Raman spectroscopy and principal components analysis were used to authenticate gasoline adulterated with methyl tert-butyl ether and benzene.
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