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Air flow-assisted ionisation: Novel technique facilitates remote sampling

Date: Apr 15, 2011

Author: Steve Down

Ambient mass spectrometry has been boosted by the development of an air flow-assisted ionisation source which enhanced the capture and transport of charged species and provided sensitive remote sampling in real time.

Read More thumbnail image: Air flow-assisted ionisation Novel technique facilitates remote sampling

Journal Highlight: Progress in SIFT-MS: Breath analysis and other applications

Date: Apr 11, 2011

Author:

The development of selected ion flow tube mass spectrometry (SIFT-MS) is described from the large SIFT instruments used to demonstrate the feasibility of SIFT-MS towards the smaller but bulky transportable instruments and finally to the current smallest instruments that have been located in various places, including hospitals and schools, to obtain on-line breath analyses.

Read More thumbnail image: Journal Highlight Progress in SIFT-MS Breath analysis and other applications

Chinese ink sticks: Pyrolysing PAHs for differentiating soot sources

Date: Apr 1, 2011

Author: Steve Down

Chinese ink sticks have been differentiated on the basis of their PAH content by pyrolysis-GC/MS, which also detects additives such as fatty acids, and performs far better than GC/MS alone.

Read More thumbnail image: Chinese ink sticks Pyrolysing PAHs for differentiating soot sources

Monkey business: oxygen isotope ratios correlate between hair and bone

Date: Mar 15, 2011

Author: Steve Down

The oxygen isotope ratios of hair and bioapatite from rhesus macaque monkeys show a strong correlation, say UK researchers, allowing one to be used as a substitute for the other when tissues are limited. Climate, altitude and distance from the source of precipitation influence the values.

Read More thumbnail image: Monkey business oxygen isotope ratios correlate between hair and bone

Journal Highlight: The evolving field of imaging mass spectrometry and its impact on future biological research

Date: Mar 14, 2011

Author:

The evolution and current state of imaging mass spectrometry (IMS) is discussed and some of the directions that IMS could develop in order to stay on course to become one of the most promising new tools in life science research are outlined.

Read More thumbnail image: Journal Highlight The evolving field of imaging mass spectrometry and its impact on future biological research

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
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