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Banknote security: Depth profiling by ambient mass spectrometry

Date: Feb 15, 2016

Author: Steve Down

Counterfeit banknotes can be distinguished from authentic currency by electrospray laser desorption/ionisation mass spectrometry, an ambient technique that allows depth profiles to be produced for enhanced discrimination.

Read More thumbnail image: Banknote security Depth profiling by ambient mass spectrometry

Journal Highlight: LC/ESI-MS/MS method for determination of salivary eicosapentaenoic acid concentration to arachidonic acid concentration ratio

Date: Feb 8, 2016

Author: spectroscopyNOW

A simple LC/ESI-MS/MS method for measuring the ratio of eicosapentaenoic acid to arachidonic acid in human saliva has been developed to help predict the risk of cardiovascular disease, especially atherosclerosis.

Read More thumbnail image: Journal Highlight LCESI-MSMS method for determination of salivary eicosapentaenoic acid concentration to arachidonic acid concentration ratio

Multidrug abuse in opioid treatment programmes: The emergence of new psychoactive substances

Date: Feb 1, 2016

Author: Steve Down

Scientists in Finland have used LC/MS with a high-resolution mass spectrometer to reveal that many people on opioid drug treatment programmes continue to seek highs by polydrug abuse of traditional drugs as well as new psychoactive substances.

Read More thumbnail image: Multidrug abuse in opioid treatment programmes The emergence of new psychoactive substances

Ambient ionisation sensitivity: Spray dopant improvements in EASI MS

Date: Jan 15, 2016

Author: Steve Down

The introduction of a simple additive to the solution in easy ambient sonic spray ionisation provided 2-4-fold increases in sensitivity, bringing it on a par with desorption electrospray ionisation mass spectrometry.

Read More thumbnail image: Ambient ionisation sensitivity Spray dopant improvements in EASI MS

Journal Highlight: Expanded newborn screening by mass spectrometry: New tests, future perspectives

Date: Jan 11, 2016

Author: spectroscopyNOW

The success of MS/MS in newborn screening programs is discussed with several examples of its use in second-tier tests and confirmatory testing.

Read More thumbnail image: Journal Highlight Expanded newborn screening by mass spectrometry New tests future perspectives

Candida breath test: GC/MS possibilities

Date: Jan 4, 2016

Author: Steve Down

A breath test based on GC/MS analysis will be a promising way to diagnose oral candidiasis, say scientists in Germany following the in vitro analysis of volatiles released from cultures of four Candida species.

Read More thumbnail image: Candida breath test GCMS possibilities

Pneumonia microorganisms: Accelerated identification in clinical setting

Date: Dec 16, 2015

Author: Steve Down

Using MALDI TOFMS to identify the microorganisms in ventilated patients with pneumonia reduced the time before refinement of the antibiotic therapy and also the time spent in the intensive care unit.

Read More thumbnail image: Pneumonia microorganisms Accelerated identification in clinical setting

Journal Highlight: Electron ionization LC-MS with supersonic molecular beams — the new concept, benefits and applications

Date: Dec 7, 2015

Author: spectroscopyNOW

A new type of electron ionization LC-MS with supersonic molecular beams is based on pneumatic spray formation of the LC liquid flow in a heated spray vaporization chamber, full sample thermal vaporization and subsequent electron ionization of vibrationally cold molecules in supersonic molecular beams.

Read More thumbnail image: Journal Highlight Electron ionization LC-MS with supersonic molecular beams  the new concept benefits and applications

Cosmetic creams: Undeclared corticosteroids uncovered by LC/MS

Date: Dec 1, 2015

Author: Steve Down

A single LC/MS method has been designed for the routine measurement of 11 corticosteroids in cosmetics creams, to detect unlabelled additives that might be harmful to consumers, especially children.

Read More thumbnail image: Cosmetic creams Undeclared corticosteroids uncovered by LCMS

Bodily nicotine: Improved LC/MS method for clinical use

Date: Nov 15, 2015

Author: Steve Down

A new LC/MS method for measuring nicotine and its principal metabolites in plasma avoids unwanted contamination in blank plasma samples and employs a basic HPLC mobile phase for more efficient and faster separations.

Read More thumbnail image: Bodily nicotine Improved LCMS method for clinical use
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