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Breaking the law: Laser focus

Date: Apr 15, 2014

Author: David Bradley

An international team has demonstrated that a nanoparticle trapped with a laser beam can temporarily violate the strict second law of thermodynamics, a feat that is impossible on the everyday time and length scales of our reality.

Read More thumbnail image: Breaking the law Laser focus

Journal Highlight: Tissue-specific copper accumulation, zinc levels, induction, and purification of metallothionein in freshwater crab Sinopotamon henanense exposed to subacute waterborne copper

Date: Apr 3, 2014

Author: spectroscopyNOW

The crab Sinopotamon henanense was exposed to waterborne copper and the accumulation of copper and zinc and metallothionein induction in gills and hepatopancreas were determined with the Cd/Hemoglobin saturation assay and AAS.

Read More thumbnail image: Journal Highlight Tissue-specific copper accumulation zinc levels induction and purification of metallothionein in freshwater crab Sinopotamon henanense exposed to subacute waterborne copper

MEMS laser: Lighting up spectroscopy and telecoms

Date: Mar 15, 2014

Author: David Bradley

Researchers have demonstrated the smallest wavelength-tunable laser built with microelectromechanical system (MEMS) technology. The device could have wide-ranging applications in telecommunications technology and spectroscopy.

Read More thumbnail image: MEMS laser Lighting up spectroscopy and telecoms

Journal Highlight: Glow discharge techniques in the chemical analysis of photovoltaic materials

Date: Mar 3, 2014

Author: spectroscopyNOW

An integrated overview is presented on the prospects of glow discharge (GD) methods in the chemical analysis of photovoltaic materials, focusing on GD coupled with high resolution MS, TOFMS and OES.

Read More thumbnail image: Journal Highlight Glow discharge techniques in the chemical analysis of photovoltaic materials

A flight of fancy: Electron pair emissions

Date: Feb 15, 2014

Author: David Bradley

Measuring electron pair emission is an experimentally difficult task, not least because it requires access to a synchrotron light source. Now, researchers have developed a new way to measure the emission of electron pairs directly by using a unique combination of a new laboratory light source with time-of-flight spectrometry.

Read More thumbnail image: A flight of fancy Electron pair emissions

Journal Highlight: Element fractionation analysis for infant formula and food additives by ICP-OES

Date: Feb 3, 2014

Author: spectroscopyNOW

A sequential separation procedure has been applied for the protein, lipid and serum fractions of infant formula, coffee cream, milk powder, whey powder and rice flour before analysis for essential and nonessential elements by ICP-OES.

Read More thumbnail image: Journal Highlight Element fractionation analysis for infant formula and food additives by ICP-OES

Iron and age: Brain analysis

Date: Jan 15, 2014

Author: David Bradley

Graphite furnace atomic absorption spectrometry after microwave-assisted acid digestion of post mortem brain samples has investigated levels and distribution of iron. The work may ultimately offer new insights into the role of the trace metal in neurodegenerative diseases.

Read More thumbnail image: Iron and age Brain analysis

Journal Highlight: Analysis of six heavy metals in Ortho mineral trioxide aggregate and ProRoot mineral trioxide aggregate by ICP-OES

Date: Jan 6, 2014

Author: spectroscopyNOW

The levels of Cd, Cu, Fe, Mn, Ni and Zn in the dental materials Ortho mineral trioxide aggregate and ProRoot mineral trioxide aggregate have been measured by ICP-OES.

Read More thumbnail image: Journal Highlight Analysis of six heavy metals in Ortho mineral trioxide aggregate and ProRoot mineral trioxide aggregate by ICP-OES

Oiling up: LIBS spots the Swan

Date: Dec 15, 2013

Author: David Bradley

LIBS has been used to analyse organic liquid media, such as vegetable oils and to highlight the "Swan band" of C2 emitted  aturated fatty acids, thus providing a single parameter for characterising this important food ingredient.

Read More thumbnail image: Oiling up LIBS spots the Swan

Journal Highlight: Investigation of long-term geochemical variations and magmatic processes at Mount St. Helens

Date: Dec 2, 2013

Author: spectroscopyNOW

The early magmatic history of Mount St. Helens has been constrained based on chemical zonation of phenocrysts from the different eruptive units and compositions of melt inclusions determined by LA-ICPMS.

Read More thumbnail image: Journal Highlight Investigation of long-term geochemical variations and magmatic processes at Mount St_ Helens
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