Infrared Spectroscopy / Ezine
Taking the lead
Date: Feb 1, 2009
Author: David Bradley
Fourier transform infrared spectroscopy was used to characterise magnetic nanoparticles that might one day be used to treat lead poisoning, but could have more immediate applications in diagnostics, biomedical research and environmental science.
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Measurement of tissue oxygen saturation levels using portable near-IR spectroscopy in clinically healthy dogs
Date: Jan 5, 2009
Author:
A reference interval has been established for tissue oxygen saturation levels (StO2) in dogs measured using a portable near-infrared spectroscope and sites for reproducibly measuring StO2) levels in dogs were determined.
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By Jove, it's hot and steamy!
Date: Jan 1, 2009
Author: David Bradley
The planet HD 189733b, one of several "hot Jupiters", suffers from a high concentration of atmospheric carbon dioxide as revealed by near-infrared spectroscopy. The discovery represents a small, but significant, step to finding life's building materials on planets beyond the solar system.
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Plastics under stress go with the flow
Date: Dec 1, 2008
Author: David Bradley
US researchers have turned to near-infrared spectroscopy to help them solve one of the most puzzling properties of polymer glasses, plastics - how they can be both rigid solids and yet flow when under stress as if they were liquids. The phenomenon, it seems, at least with regard to polymethylmethacrylate is underpinned by molecular motions under stress.
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Evaluation of Shooting Distance by AFM and FTIR/ATR Analysis of GSR
Date: Dec 1, 2008
Author:
The techniques of atomic force microscopy and Fourier transform infrared attenuated total reflectance spectroscopy are applied to the analysis of gun-shot residue to test their ability to determine shooting distance and discrimination of the powder manufacturers.
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Compaction of pharmaceutical tablets with different polymer matrices studied by FTIR imaging and X-ray microtomography
Date: Nov 3, 2008
Author:
ATR-FTIR spectroscopic imaging has been used to analyse in situ the spatial distribution of different components in tablets with different compositions, including various water-soluble polymers that are added to improve dissolution and compaction properties.
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DIY instrumentation
Date: Nov 1, 2008
Author: David Bradley
Rather than designing and building new instrumentation from bespoke components, researchers in Canada have hacked the laser-based optical read-write technology of DVD and CD players to create a biomedical diagnostics system.
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Innovative uses of near-infrared spectroscopy in food processing
Date: Oct 6, 2008
Author:
The application of near-infrared spectroscopy to process control in the food industry is reviewed. Complex processes such as meat tenderness evaluation and dough mixing can be monitored and controlled in situ to produce consistent, high quality end products.
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Skag test
Date: Oct 1, 2008
Author: David Bradley
Impure forms of illicit drugs are almost as big a problem as the drugs themselves. Now, researchers in Spain have used diffuse reflectance near-infrared spectroscopy (DR-NIR) to quickly determine the purity of heroin.
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Fast, noninvasive and simultaneous NIRS characterisation of physicochemical stationary phases properties: From silica particles towards monoliths
Date: Sep 1, 2008
Author:
The advantages of this fast, noninvasive high-throughput NIRS methods are summarised, discussed in detail and different applications of the individual characterised materials are shown.
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