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Forgeries foiled: EASI mass spectrometry identifies falsified vehicle registration documents

Date: Jan 5, 2012

Author: Steve Down

Forged Brazilian vehicle documents have been detected by ambient mass spectrometry due to the presence of a stabiliser found in printing ink that is absent from genuine documents.

Read More thumbnail image: Forgeries foiled EASI mass spectrometry identifies falsified vehicle registration documents

Banged to rights: Firearms distinguished using gunshot residues on fabrics

Date: Dec 15, 2011

Author: Steve Down

Gunshot residues on different types of fabrics have been analysed by high resolution mass spectrometry and the elemental data displayed on ternary graphs to reveal the type of weapon that was fired. The method could provide vital clues in forensic investigations where the firearm has not been recovered.

Read More thumbnail image: Banged to rights Firearms distinguished using gunshot residues on fabrics

Journal Highlight: The pivotal role of mass spectrometry in determining the presence of chemical contaminants in food raw materials

Date: Dec 12, 2011

Author:

The contribution and potential of mass spectrometry-based techniques, with and without chromatographic coupling, to ensure the absence of chemical contaminants in food-based products has been reviewed.

Read More thumbnail image: Journal Highlight The pivotal role of mass spectrometry in determining the presence of chemical contaminants in food raw materials

False negatives in food: High resolution mass spectrometry sorts analytes from interferents

Date: Dec 1, 2011

Author: Steve Down

A common food contaminant which could not be confirmed in many foods by tandem mass spectrometry due to a coeluting compound has been analysed successfully using high resolution mass spectrometry, preventing the occurrence of potentially harmful false negatives.

Read More thumbnail image: False negatives in food High resolution mass spectrometry sorts analytes from interferents

The pressure is on: Imaging mass spectrometry for bedsore profiles

Date: Nov 15, 2011

Author: Steve Down

The protein and lipid compositions of pressure ulcers have been visualised by imaging mass spectrometry to give a much-needed view of the molecular status of these chronic wounds that could lead to a prognostic test of their reparative status.

Read More thumbnail image: The pressure is on Imaging mass spectrometry for bedsore profiles

Journal Highlight: Simultaneous determination nucleosides in marine organisms using ultrasound-assisted extraction followed by HILIC-electrospray ionization TOFMS

Date: Nov 7, 2011

Author:

Ultrasound-assisted extraction followed by hydrophilic interaction chromatography and electrospray ionization time-of-flight mass spectrometry has been applied to the simultaneous determination of 16 nucleosides and nucleobases in medicinal extracts of various marine organisms.

Read More thumbnail image: Journal Highlight Simultaneous determination nucleosides in marine organisms using ultrasound-assisted extraction followed by HILIC-electrospray ionization TOFMS

Cleaning up: Fabrics retain remnants of dry cleaning fluid

Date: Nov 1, 2011

Author: Steve Down

The dry cleaning fluid perchloroethylene is retained in fabrics for up to seven days after cleaning, presenting a potential health risk by inhalation and dermal absorption and warranting further studies on exposure of this potential carcinogen.

Read More thumbnail image: Cleaning up Fabrics retain remnants of dry cleaning fluid

Sweet tracer: Sucralose in drinking water is a marker for human activity

Date: Oct 15, 2011

Author: Steve Down

The majority of purified drinking water streams leaving domestic wastewater treatment plants in the US are contaminated with sucralose, suggesting that this artificial sweetener can be used as a marker for anthropogenic input in source and drinking water.

Read More thumbnail image: Sweet tracer Sucralose in drinking water is a marker for human activity

Journal Highlight: Guidelines and recommended terms for expression of stable-isotope-ratio and gas-ratio measurement results

Date: Oct 9, 2011

Author:

To minimize confusion in the expression of measurement results of stable isotope and gas-ratio measurements, recommendations based on publications of the Commission on Isotopic Abundances and Atomic Weights of the International Union of Pure and Applied Chemistry (IUPAC) are presented.

Read More thumbnail image: Journal Highlight Guidelines and recommended terms for expression of stable-isotope-ratio and gas-ratio measurement results

Tumour trials: Real-time boundary demarcation by ultrasonic aspiration and ambient mass spectrometry

Date: Oct 1, 2011

Author: Steve Down

Brain tissue can be analysed in real time in a surgical setting by a combination of ultrasonic aspiration and sonic spray mass spectrometry, raising the possibility of detecting tumour margins in the operating theatre without the addition of chemical tags. The procedure can easily be extended to other tissue types.

Read More thumbnail image: Tumour trials Real-time boundary demarcation by ultrasonic aspiration and ambient mass spectrometry
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