Atomic / Ezine
Journal Highlight: Modification and characterization of polyacrylonitrile fiber by chelating ligand for preconcentration and determination of neodymium ion in biological and environmental samples
Date: Mar 4, 2013
Author: spectroscopyNOW
Chelating fibers of polyacrylonitrile prepared from iminodiacetic acid have been used for the preconcentration and determination of trace Nd(III) ions from human biological fluid and environmental waters by ICP-AES.
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Shrinking the proton: Laser scan
Date: Feb 15, 2013
Author: David Bradley
An international research team has confirmed the surprisingly small radius of the proton using laser spectroscopy on muonic hydrogen. The new results fuel the debate as to whether the discrepancies observed can be explained by standard physics, for example an incomplete understanding of the systematic errors that are inherent to all measurements, or whether they are due to new physics, or a higher complexity than previously assumed for the structure of the proton.
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Journal Highlight: Ion implanted inconel alloy – SIMS and GDMS depth profile analysis
Date: Feb 4, 2013
Author: spectroscopyNOW
SIMS and GDMS have been applied to the depth profile analysis of ion-implanted nickel alloy inconel 600, giving similar results for implanted N, Ti and Y.
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Counting on nano control: Molecular machines
Date: Jan 15, 2013
Author: David Bradley
STM microscopy and attendant I-V spectroscopy at the atomic scale has allowed an international team to take the next step in creating nanoscale machines. Their work now reveals a multi-component molecular motor that can be moved clockwise and anticlockwise.
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Journal Highlight: Quantitative imaging of the tissue contrast agent [Gd(DTPA)]2− in articular cartilage by laser ablation ICPMS
Date: Jan 7, 2013
Author: spectroscopyNOW
An analytical protocol is described for imaging the magnetic resonance tissue contrast agent [Gd(DTPA)]2− in articular cartilage, including sample preparation, LA-ICP-MS measurements and quantification of Gd images.
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Sounding out engine efficiency: Ultrasound scan
Date: Dec 15, 2012
Author:
Atomic absorption spectroscopy might be used to analyse the metallic content of engine residues but researchers in the UK have now turned to ultrasound to scan engine components with a view to facilitating the design of new components that are more efficient and generate lower carbon emissions.
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Journal Highlight: On the embalmment of S. Francesco Caracciolo
Date: Dec 3, 2012
Author: spectroscopyNOW
Four samples of the remains of S. Caracciolo have been analysed for traces of embalmment using cold vapour atomic absorption spectroscopy, which revealed low background levels of As and high levels of Hg.
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Lead and IQ: Toxic effects and tau protein
Date: Nov 15, 2012
Author:
An atomic absorption spectroscopy (AAS) study has demonstrated that exposure to the heavy metal lead increases phosphorylation of the tau protein in the brains of laboratory rats. The study offers new insights into the biochemical link between this process, lead exposure and cognitive impairment.
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Journal Highlight: Quality of hemodialysis water in a resource-poor country: The Nigerian example
Date: Nov 5, 2012
Author: spectroscopyNOW
The quality of hemodialysis water in Lagos, Nigeria, was assessed by several methods including atomic absorption spectrometry, flame photometry, molecular photoluminescence and turbidimetry.
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Shape-shifting microbes: Optically trapped
Date: Oct 15, 2012
Author: David Bradley
Researchers in Germany have developed an optical trap for bacteria. The system allows them to grab hold of the microbes and scan them with a laser.
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