Atomic / Ezine
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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Journal Highlight: Analysis of Late Bronze Age glass axes from Nippur - a new cobalt colourant
Date: Oct 1, 2012
Author: spectroscopyNOW
A multidisciplinary study of a unique group of Late Bronze Age ceremonial glass axe heads and other artefacts shows that these are the first significant group of glasses coloured with cobalt to be identified from the Near East.
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FAAS food: Flavour enhancement
Date: Sep 15, 2012
Author: David Bradley
A silica gel substrate modified with thiourea has enabled preconcentration of cadmium, copper and lead in food samples, according to research published in the Journal of Food Science.
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Journal Highlight: Differential distribution of cobalt, chromium, and nickel between whole blood, plasma and urine in patients after metal-on-metal (MoM) hip arthroplasty
Date: Sep 3, 2012
Author: spectroscopyNOW
Cobalt, chromium and nickel were measured in the blood, plasma and urine of hip replacements patients by ICPMS to help understand the reasons for poor device outcome.
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Heavy metal in pregnancy: Health risks
Date: Aug 15, 2012
Author: David Bradley
Atomic absorption spectroscopy has been used to measure levels of metals in blood plasma from expectant mothers as a proxy for oxidative stress. Increased levels of iron in pregnancy reveals an association with high blood pressure conditions including hypertension and pre-eclampsia, although causation is not demonstrated.
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Journal Highlight: Metals in organic and conventional wheat flours determined by an optimised and validated ICP-MS method
Date: Aug 6, 2012
Author: spectroscopyNOW
A simple ICP-MS method was devised for multi-element determination in cereal products and to evaluate multi-element content differences in commercially available conventional vs. organic wheat flours.
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