Atomic / Ezine
Optimisation of microwave digestion to determine elements in legumes by flame atomic absorption spectrometry
Date: Feb 6, 2006
Author:
Iron, zinc, manganese and copper are recognised as essential elements for humans. Fe, Zn, Mn and Cu levels in three Turkish legumes were determined by flame atomic absorption spectrometry.
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Working on the molecular scale
Date: Jan 11, 2006
Author: David Bradley
A powerful new tool for probing molecular structure on surfaces has been developed by US researchers. Single molecule absorption spectroscopy can enhance molecular analysis, surface manipulation, and studies of molecular energy and reactivity at the atomic level.
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On-line photodecomposition for the determination of antimony species
Date: Jan 3, 2006
Author:
The potentially harmful effects of antimony has led it to be listed as a priority water pollutant by the US Environmental Protection Agency. In this paper, on-line UV photooxidation by peroxodisulfate was coupled to ion chromatography hydride generation atomic fluorescence spectroscopy for the speciation of antimony.
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Lead poisoning risk for "hooch" drinkers
Date: Dec 15, 2005
Author: David Bradley
Christopher Holstege of the Blue Ridge Poison Center at the University of Virginia Health System and colleagues at Virginia Commonwealth University have enlisted atomic absorption spectroscopy to show that people who drink moonshine, an illicit alcoholic drink common in Virginia and the southern states, are putting themselves at serious risk of lead poisoning.
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Atomic arsenic assessment
Date: Nov 2, 2005
Author: David Bradley
Researchers in Vietnam and Switzerland have developed the first large-scale method for validating the microbial reporter-based test for measuring arsenic concentrations in natural water resources. Its viability was proved against atomic absorption spectroscopy data.
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Assessment of the PD-TOFMS technique for pesticide adsorption and degradation on soil samples
Date: Oct 11, 2005
Author:
The assessment of the plasma desorption time-of-flight mass spectrometry (PD-TOFMS) technique as a tool for direct characterization of pesticides adsorbed on agricultural soil is made for the first time in this study.
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On the road again - atomic spectroscopy analyses the dusty highway
Date: Oct 4, 2005
Author: David Bradley
Because road dust constitutes a high percentage of the atmosphere's suspended particles in Taiwan, researchers have used inductively coupled plasma atomic emission spectroscopy and ICP-mass spectrometry to analyse the elements found in these airborne particulates.
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Stratigraphic and Geochemical Study of Clastic Sediments of the Grotte di Stiffe Karstic System
Date: Sep 22, 2005
Author:
Stratigraphic and chemical studies, carried out on clastic sediments from the karstic system of the Grotte di Stiffe in Abruzzo, Italy, with particular regard to the presence of heavy metals, have been performed on some 50 cm of drawn sediment, utilising atomic absorption spectrophotometry.
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Variation in elemental intensities among teeth and between pre- and postnatal regions of enamel
Date: Sep 19, 2005
Author:
Microspatial analyses of the trace element composition of dental enamel are made possible using laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS).
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Cascade lasers against terrorists - prototype handheld gas and liquid sensing devices
Date: Sep 15, 2005
Author: David Bradley
Using small quantum cascade lasers, based on InGaAs/AlInAs/InP, researchers at Georgia Institute of Technology in the US and colleagues at Tel-Aviv University and OmniGuide Communications, have developed a prototype handheld gas and liquid sensing device.
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