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Keeping your nerve: VX in drinking water

Date: Mar 15, 2013

Author: Steve Down

The nerve agent VX has been determined in drinking water by a high-throughput LC/MS method combined with special treatment to prevent it from decomposing before analysis.

Read More thumbnail image: Keeping your nerve VX in drinking water

Journal Highlight: Investigations of chemical warfare agents and toxic industrial compounds with proton-transfer-reaction mass spectrometry for a real-time threat monitoring scenario

Date: Mar 11, 2013

Author: spectroscopyNOW

Chemical warfare agents and toxic industrial compounds have been studied by high-resolution PTR-TOFMS to identify key product ions and their intensities with which to develop a low-resolution PTR-MS system for detecting threat agents in the atmosphere.

Read More thumbnail image: Journal Highlight Investigations of chemical warfare agents and toxic industrial compounds with proton-transfer-reaction mass spectrometry for a real-time threat monitoring scenario

Two are better than one: Dual electrosprays for desorbed samples in ambient mass spectrometry

Date: Mar 1, 2013

Author: Steve Down

A laser desorption ambient mass spectrometry system with two post-desorption sprayers gives the flexibility to carry out different procedures on the same sample during the same experiment, rapidly switching spectra.

Read More thumbnail image: Two are better than one Dual electrosprays for desorbed samples in ambient mass spectrometry

Safety of implantable medical devices: Antioxidant breakdown products classified

Date: Feb 15, 2013

Author: Steve Down

Components related to antioxidants that leach out of implantable medical devices, like artificial joint inserts, have been identified and measured by GC/MS to check their safety credentials.

Read More thumbnail image: Safety of implantable medical devices Antioxidant breakdown products classified

Journal Highlight: Early synthetic dyes – a challenge for tandem mass spectrometry

Date: Feb 11, 2013

Author: spectroscopyNOW

Early yellow synthetic dyes from silk fibres taken from the 1930 spring colour palette of the Lyon Dyers’ Guild (La Chambre Syndicale des Teinturiers) have been identified, primarily by electrospray MS/MS.

Read More thumbnail image: Journal Highlight Early synthetic dyes  a challenge for tandem mass spectrometry

Tipping point: Wooden toothpicks for ambient ionisation of illegal drugs

Date: Feb 1, 2013

Author: Steve Down

Ketamine and its major metabolite norketamine have been measured in urine and oral fluid by ambient electrospray mass spectrometry using a wooden toothpick as the sample holder.

Read More thumbnail image: Tipping point Wooden toothpicks for ambient ionisation of illegal drugs

Hydrogen from silicon: Just add water

Date: Feb 1, 2013

Author: David Bradley

Two techniques, X-ray photoelectron spectroscopy (XPS) and time-of-flight-secondary-ion-mass-spectrometry (TOF-SIMS), have been used in parallel to show how adding water to silicon can generate hydrogen. The work might take us another step closer to the so-called carbon-free hydrogen economy.

Read More thumbnail image: Hydrogen from silicon Just add water

Fading dyes: Crystal violet degradation under UV light

Date: Jan 16, 2013

Author: Steve Down

The full range of crystal violet photodegradation products have been identified by mass spectrometry, shedding light on the discolouration of historical artefacts and works of art.

Read More thumbnail image: Fading dyes Crystal violet degradation under UV light

Journal Highlight: Laser diode thermal desorption mass spectrometry for the analysis of quinolone antibiotic residues in aquacultured seafood

Date: Jan 14, 2013

Author: spectroscopyNOW

Flumequine, oxolinic acid and nalidixic acid were extracted from catfish, shrimp and salmon and analysed by laser diode thermal desorption atmospheric pressure chemical ionization with tandem mass spectrometry.

Read More thumbnail image: Journal Highlight Laser diode thermal desorption mass spectrometry for the analysis of quinolone antibiotic residues in aquacultured seafood

Miniature mass spec for space: Prototype dual laser TOF for aromatic organic compounds

Date: Jan 7, 2013

Author: Steve Down

A novel miniature time-of-flight mass spectrometer featuring two-step laser desorption/ionisation has been developed by scientists in the US for planetary research, aimed specifically at the identification of polycyclic aromatic compounds.

Read More thumbnail image: Miniature mass spec for space Prototype dual laser TOF for aromatic organic compounds
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