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Lunar meteorite regolith breccias: An in situ study of impact melt composition using LA-ICP-MS with implications for the composition of the lunar crust

Date: Nov 1, 2010

Author:

A compositional study was carried out of the impact melt and impact melt breccia clast populations of meteorites representing regions of the lunar surface that were not visited by the US Apollo or Soviet Luna sample return missions, using in situ electron microprobe and LA-ICP-MS techniques.

Read More thumbnail image: Lunar meteorite regolith breccias An in situ study of impact melt composition using LA-ICP-MS with implications for the composition of the lunar crust

Lead extraction with green tea: AAS reveals efficacious lead detox

Date: Oct 15, 2010

Author: David Bradley

Atomic absorption spectroscopy and other techniques have been used to study the effects of green tea extract on reducing lead toxicity in laboratory rats.

Read More thumbnail image: Lead extraction with green tea AAS reveals efficacious lead detox

An assessment on metal sources by multivariate analysis and speciation of metals in soil samples using the BCR sequential extraction procedure

Date: Oct 4, 2010

Author:

The concentrations of Cr, Mn, Fe, Ni, Cu, Zn and Pb in soil samples from an agricultural area were determined by flame atomic absorption spectrometry, revealing principal influences derived from natural, airborne emissions from domestic heating and traffic.

Read More thumbnail image: An assessment on metal sources by multivariate analysis and speciation of metals in soil samples using the BCR sequential extraction procedure

A comet's tale of life on earth

Date: Sep 15, 2010

Author: David Bradley

Ab initio molecular dynamics simulations and detailed analysis hint at how conditions on the early earth might have been ripe for a cometary impact to generate small organic molecules. The study suggests that the formation of molecules akin to the simple amino acid glycine may have been viable. Follow-up spectroscopic studies may demonstrate the validity of the hypothesis.

Read More thumbnail image: A comets tale of life on earth

Application of laser ablation multicollector ICPMS for the measurement of calcium and lead isotope ratios in packaging for discriminatory purposes

Date: Sep 2, 2010

Author:

The potential of high-precision calcium and lead isotope ratio measurements using LA-MC-ICP-MS to aid distinction between four genuine and five counterfeit pharmaceutical packaging samples and further classification of counterfeit packaging samples has been evaluated.

Read More thumbnail image: Application of laser ablation multicollector ICPMS for the measurement of calcium and lead isotope ratios in packaging for discriminatory purposes

Attosecond atoms

Date: Aug 15, 2010

Author: David Bradley

Atoms reacting on the femtosecond timescale can now be observed with unprecedented detail using a new laser spectroscopy technique reported recently in Nature.

Read More thumbnail image: Attosecond atoms

Direct and rapid determination of ultratrace heavy metals in solid plant materials by ET-AAS ultrasonic-assisted slurry sampling

Date: Aug 2, 2010

Author:

A new procedure for direct analysis of copper, nickel, cadmium and lead at very low concentration levels in leaves based on ET-AAS with introduction of samples as a slurry gave the best detection limits reported in the literature.

Read More thumbnail image: Direct and rapid determination of ultratrace heavy metals in solid plant materials by ET-AAS ultrasonic-assisted slurry sampling

Milking AAS for iodine content

Date: Jul 15, 2010

Author: David Bradley

A simple, precise and accurate automatic method for determinating total iodine concentration in milk products based on indirect atomic absorption spectrometry could improve studies of this essential micronutrient.

Read More thumbnail image: Milking AAS for iodine content

Accurate elemental analysis of metal-containing polymer latexes using ICP-optical emission spectrometry

Date: Jul 5, 2010

Author:

The use of ICP-OES to determine the metal content of metal complex-containing colloidal dispersions gave accurate results only following the addition of surfactant to the dispersions.

Read More thumbnail image: Accurate elemental analysis of metal-containing polymer latexes using ICP-optical emission spectrometry

Nano cell

Date: Jun 15, 2010

Author: David Bradley

An international team of scientists have developed a new nano-cell for laser spectroscopy that opens up new ways to study absorption and fluorescence of metal vapours

Read More thumbnail image: Nano cell
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