Infrared Spectroscopy / Ezine
Resonant approach to quantum problem
Date: Dec 1, 2009
Author: Steve Down
Microwave waveguides on a diamond-based chip can generate a magnetic field large enough to change the quantum state of an atomic-scale defect in less than one billionth of a second, emulating the process involved in magnetic resonance imaging and potentially leading to a new approach to quantum computing.
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Quick assessment of the thermal decomposition behavior of lignocellulosic biomass by near IR spectroscopy and its statistical analysis
Date: Nov 2, 2009
Author:
The application of near infrared spectroscopy for predicting the thermal decomposition behavior of lignocellulosic biomass (three types of woody biomass and three types of herbaceous biomass) was successfully performed along with statistical analysis.
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NIR and Raman quickly reveal heparin contamination
Date: Nov 1, 2009
Author: David Bradley
Near infrared (NIR) reflectance and laser Raman spectra can be used to quickly screen drug samples non-destructively and to spot contamination. The techniques could not displace nuclear magnetic resonance spectroscopy and electrophoresis required by drug regulators, but could be used as a quick first test for screening potentially contaminated drug products.
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Prediction of tablet properties based on near infrared spectra of raw mixed powders by chemometrics: Scale-up factor of blending and tableting processes
Date: Oct 5, 2009
Author:
A method of prediction of tablet properties based on near-IR spectra of raw mixed powders before compression was developed using chemometrical means, allowing for the effect of the difference in scale up using a pilot-scale mixing machine and a continuous tableting machine was studied.
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NIR CdSeTe
Date: Oct 1, 2009
Author: David Bradley
A near-infrared-emitting alloy of cadmium, selenium, and tellurium, has been used to make a novel type of quantum dot that is of high-quality, water-soluble, and biocompatible. The quantum dots might have application in the analysis and study of biological systems.
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Infrared reflection spectrometry analysis as a non-destructive method of characterizing minerals and stone materials in geoarchaeological and archaeometric applications
Date: Sep 7, 2009
Author:
The benefits and applications of using mid and far IR reflection spectrometry (IRS) in the analysis of archaeological materials are illustrated and a new IRS database for more than 250 different archaeological minerals and stone materials is presented.
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NIR improvements near
Date: Sep 1, 2009
Author: David Bradley
Spectroscopy, forensic science and even a future generation of quantum communication devices could benefit from research at the National Institute of Standards and Technology (NIST) where a new, highly sensitive, and low-cost approach has been developed for measuring light in the near-infrared range.
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Complex biopolymeric systems at stalk/epicuticular wax plant interfaces: A near IR spectroscopy study of sugarcane
Date: Aug 3, 2009
Author:
Naturally occurring macromolecules present at the epicuticular wax/stalk tissue interface of sugarcane were investigated using near IR spectroscopy alone to study water, cellulose, and wax-cellulose interrelationships, where in the past many different techniques have been required.
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Reflecting on Martian heat
Date: Aug 1, 2009
Author: David Bradley
A research team in Spain has used infrared spectroscopy to reveal that taking the temperature of the Red Planet is not quite as straightforward as astronomers would like to think. They have demonstrated that the mineralogical chemistry of the planet's surface can influence the precise temperature readings obtained for Martian soil.
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Variable-temperature FTIR studies on thermal stability of hydrogen bonding in nylon 6/mesoporous silica nanocomposite
Date: Jul 3, 2009
Author:
Hydrogen bonding in a nylon 6/mesoporous silica nanocomposite was investigated using variable-temperature FTIR spectroscopy. Comparison with the results for nylon 6 showed that mesoporous silica increases considerably the thermal stability of hydrogen bonding.
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