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Equine insulin doping control: detection of different insulin species for new test

Date: Mar 1, 2011

Author: Steve Down

Five foreign insulins have been detected in equine urine for the first time, using a mass spectrometry technique to distinguish them from equine insulin. The technique demonstrates that urine can be used for doping control of insulin in horses.

Read More thumbnail image: Equine insulin doping control detection of different insulin species for new test

Toxic winds: PCBs from West Africa overwhelm the Atlantic

Date: Feb 15, 2011

Author: Steve Down

The discovery of unexpectedly high airborne levels of PCBs off the coast of West Africa has led scientists to suggest that there are unaccounted sources on the African mainland which are not included in current worldwide inventory models. Dumping of electronic waste and the disposal of old ships are possible explanations.

Read More thumbnail image: Toxic winds PCBs from West Africa overwhelm the Atlantic

Journal Highlight: Evaluation of MALDI-TOFMS in comparison to rpoB gene sequencing for species identification of bloodstream infection staphylococcal isolates

Date: Feb 7, 2011

Author:

Matrix-assisted laser desorption ionization-time-of-flight mass spectrometry was evaluated for the identification of 450 blood isolates of the most relevant staphylococcal species, using sequence analysis of the rpoB gene as the reference method.

Read More thumbnail image: Journal Highlight Evaluation of MALDI-TOFMS in comparison to rpoB gene sequencing for species identification of bloodstream infection staphylococcal isolates

Tissue on paper: Direct mass spectrometry of biopsy samples

Date: Feb 1, 2011

Author: Steve Down

The recently developed ambient technique known as paper spray mass spectrometry has been extended to the direct analysis of biological tissue from biopsies, detecting hormones, lipids and drugs within 1 minute from small samples.

Read More thumbnail image: Tissue on paper Direct mass spectrometry of biopsy samples

Popping out from glaciers: release of persistent pollutants contributes to increased lake levels

Date: Jan 15, 2011

Author: Steve Down

A study of two neighbouring Alpine lakes with different catchment areas has confirmed that glaciers represent secondary sources of persistent organic pollutants which will have more influence as climate warming increases.

Read More thumbnail image: Popping out from glaciers release of persistent pollutants contributes to increased lake levels

Journal Highlight: Olive oil or lard?: Distinguishing plant oils from animal fats in the archeological record of the eastern Mediterranean using GC/combustion/isotope ratio MS

Date: Jan 10, 2011

Author:

Compound-specific carbon stable isotope analyses of the C18:0 and C16:0 fatty acids from modern plant oils measured by gas chromatography/combustion/isotope ratio mass spectrometry were compared with those from a residue on an ancient Egyptian shard.

Read More thumbnail image: Journal Highlight Olive oil or lard Distinguishing plant oils from animal fats in the archeological record of the eastern Mediterranean using GCcombustionisotope ratio MS

A ROBIN is not just for Christmas: Is the rotating ball interface here to stay this time?

Date: Jan 1, 2011

Author: Steve Down

The little-used rotating ball interface for laser desorption/ionisation mass spectrometers has been rejuvenated by scientists in the USA and Russia, to produce detection limits at least one order of magnitude less than commercial LC/MS instruments when used for SALDI MS.

Read More thumbnail image: A ROBIN is not just for Christmas Is the rotating ball interface here to stay this time

Alcoholic spirits classified: SPME-MS of volatiles exposes plant origins

Date: Dec 15, 2010

Author: Steve Down

An SPME-MS method with no chromatographic separation has been used to distinguish the botanical origin of raw spirits between potato, rye and corn, with 100% classification accuracy and 96% prediction ability.

Read More thumbnail image: Alcoholic spirits classified SPME-MS of volatiles exposes plant origins

Journal Highlight: Determination of sialic acids in infant formula by liquid chromatography tandem mass spectrometry

Date: Dec 6, 2010

Author:

A liquid chromatographic/tandem mass spectrometric method using pneumatically assisted electrospray ionization was developed for the determination of N-acetylneuramic acid and N-glycolylneuramic acid in infant formula

Read More thumbnail image: Journal Highlight Determination of sialic acids in infant formula by liquid chromatography tandem mass spectrometry

Mechanically recovered meat: detection in foods using metabolomics

Date: Dec 1, 2010

Author: Steve Down

A metabolomics approach based on GC/MS analysis has been applied by scientists in the UK to distinguish mechanically recovered meat from other types of recovered meat and to detect its presence in meat products.

Read More thumbnail image: Mechanically recovered meat detection in foods using metabolomics
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