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Explosive laser: Shedding light on bombs

Date: Sep 15, 2013

Author: David Bradley

A laser that can detect microscopic traces of explosive chemicals on clothing and luggage has been developed by researchers at Michigan State University. The development opens up the possibility of the accurate identification of terror suspects are baggage that may represent a bomb threat at airports and other security checkpoints.

Read More thumbnail image: Explosive laser Shedding light on bombs

Journal Highlight: Water phytoremediation of cadmium and copper using Azolla filiculoides Lam. in a hydroponic system

Date: Sep 2, 2013

Author: spectroscopyNOW

The utility of Azolla filiculoides growing in a hydroponic system for the phytoremediation of continental water polluted with cadmium and copper was evaluated, using FAAS to measure metal levels in the plant after 7 days of exposure.

Read More thumbnail image: Journal Highlight Water phytoremediation of cadmium and copper using Azolla filiculoidesLam_ in a hydroponic system

Magnetic switch: Terahertz controller

Date: Aug 15, 2013

Author: David Bradley

A terahertz laser developed at the Paul Scherrer Institute in Switzerland could be used to control the magnetization in a material on a timescale of just picoseconds. The extremely short pulses of electromagnetic radiation allow the magnetization to be changed with only a tiny delay opening up a new route to on-off switching in such materials for microelectronics and computing applications.

Read More thumbnail image: Magnetic switch Terahertz controller

Journal Highlight: The survival of gunshot residues in cremated bone: An inductively coupled plasma optical emission spectrometry study

Date: Aug 5, 2013

Author: spectroscopyNOW

ICP-OES analysis of gunshot residues in cremated bone is very sensitive and reliable and can be an appropriate nondestructive method for detecting residues on difficult and delicate substrates.

Read More thumbnail image: Journal Highlight The survival of gunshot residues in cremated bone An inductively coupled plasma optical emission spectrometry study

Laser life: Astatine inspected

Date: Jul 15, 2013

Author: David Bradley

Laser spectroscopy has been used by scientists at CERN and Mainz to investigate the nature of the rare and artificially produced radioactive element astatine for the first time.

Read More thumbnail image: Laser life Astatine inspected

Journal Highlight: Waste glass, vessels and window-panes from Thamusida (Morocco): Grouping natron-based blue-green and colourless Roman glasses

Date: Jul 2, 2013

Author: spectroscopyNOW

A collection of window-panes, vessels and alleged waste from Thamusida has been characterised by several techniques and compared with naturally coloured and colourless glasses of both Roman and later ages.

Read More thumbnail image: Journal Highlight Waste glass vessels and window-panes from Thamusida Morocco Grouping natron-based blue-green and colourless Roman glasses

Concentrate hard: Improving FAAS

Date: Jun 15, 2013

Author: David Bradley

A new preconcentration procedure for flame atomic absorption spectrometric (FAAS) determinations of heavy metals in food and water is both quick and simple to carry out.

Read More thumbnail image: Concentrate hard Improving FAAS

Journal Highlight: Ultra-trace silver determination in biological and water samples by EAAS after electrodeposition on a graphite probe

Date: Jun 3, 2013

Author: spectroscopyNOW

A rapid and simple procedure was developed for the selective and sensitive determination of ultra-trace silver in biological and environmental samples using the electrodeposition on a graphite probe modified with palladium followed by electrothermal atomic absorption spectrometry.

Read More thumbnail image: Journal Highlight Ultra-trace silver determination in biological and water samples by EAAS after electrodeposition on a graphite probe

Heavy metals in your hibiscus: Infusion refusal

Date: May 15, 2013

Author: David Bradley

Inductively coupled plasma optical emission spectrometry (ICP-OES) and flame atomic absorption spectroscopy (FAAS) have been used to determine concentrations of metals in digests and infusions of Hibiscus sabdariffa (petals), Rosa canina (receptacles), Ginkgo biloba (leaves), Cymbopogon citratus (leaves), Aloe vera (leaves) and Panax ginseng (roots).

Read More thumbnail image: Heavy metals in your hibiscus Infusion refusal

Journal Highlight: Elemental ion release from fixed restorative materials into patient saliva

Date: Apr 29, 2013

Author: spectroscopyNOW

The elemental ion release of Cu, Zn, Pd, Ag and Au from fixed gold alloy crowns and Al and Si from ceramic crowns into patient saliva was studied by inductively coupled plasma mass spectrometry.

Read More thumbnail image: Journal Highlight Elemental ion release from fixed restorative materials into patient saliva
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