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Journal Highlight: Monitoring ovarian cycle activity via progestagens in urine and feces of female mountain gorillas: A comparison of EIA and LC–MS measurements

Date: Mar 10, 2014

Author: spectroscopyNOW

EIA and LC–MS measurements of steroids in the urine and faeces of the female mountain gorilla were carried out to help understand the reproductive biology of this endangered species.

Read More thumbnail image: Journal Highlight Monitoring ovarian cycle activity via progestagens in urine and feces of female mountain gorillas A comparison of EIA and LCMS measurements

Quite an earful: Wax odour reveals ethnicity

Date: Mar 3, 2014

Author: Steve Down

Earwax can tell you the ethnicity of a person and could be an indicator of disease, say US researchers, who have studied the volatile compounds emitted by this neglected body fluid.

Read More thumbnail image: Quite an earful Wax odour reveals ethnicity

Journal Highlight: Quantitative profiling and pattern analysis of triacylglycerol species in Arabidopsis seeds by electrospray ionization mass spectrometry

Date: Feb 10, 2014

Author: spectroscopyNOW

A rapid and quantitative triacylglycerol profiling approach has been devised for Arabidopsis seeds based on electrospray ionization tandem mass spectrometry with direct infusion and multiple neutral loss scans.

Read More thumbnail image: Journal Highlight Quantitative profiling and pattern analysis of triacylglycerol species in Arabidopsis seeds by electrospray ionization mass spectrometry

Gently does it: Protein complexes by paper spray ionisation

Date: Feb 1, 2014

Author: Steve Down

The gentle ambient technique of paper spray ionisation can analyse intact noncovalent protein complexes, say US researchers, and could be developed to measure large biomolecules in clinical practice.

Read More thumbnail image: Gently does it Protein complexes by paper spray ionisation

Smokey water: Tobacco nitrosamines are disinfection byproducts

Date: Feb 1, 2014

Author:

The presence of the carcinogenic tobacco-specific nitrosamines in treated water has been confirmed by a novel mass spectrometry method but they were at low-risk levels at a number of wastewater and drinking water treatment plants tested in the US.

Read More thumbnail image: Smokey water Tobacco nitrosamines are disinfection byproducts

Rosetta Heads to Comet for Some Serious GC/MS. Read Free Chapter from Quadrupole Ion Trap Mass Spectrometry

Date: Jan 27, 2014

Author: separationsNOW

After successfully waking up from a 2½ year deep sleep last week, the Rosetta probe is now all set to rendevous with Comet 67P later this year. It's taking with it a suite of analytical tools including an ion trap mass spectrometer specially designed for isotope ratio measurements. specNOW & sepNOW readers are given free access here to an entire chapter from the 2005 best selling title, Quadrupole Ion Trap Mass Spectrometry, in which the authors describe the wealth of instrumentation on...

Read More thumbnail image: Rosetta Heads to Comet for Some Serious GCMS_ Read Free Chapter from Quadrupole Ion Trap Mass Spectrometry

Redundant reference libraries: Pesticides in water by high-resolution mass spectrometry

Date: Jan 16, 2014

Author: Steve Down

Scientists in Switzerland have devised a fast and effective method based on high resolution mass spectrometry for screening pesticides in the environment that does not need reference standards.

Read More thumbnail image: Redundant reference libraries Pesticides in water by high-resolution mass spectrometry

Journal Highlight: Distinguishing wild from cultivated agarwood (Aquilaria spp.) using direct analysis in real time and time of-flight mass spectrometry

Date: Jan 13, 2014

Author: spectroscopyNOW

The direct analysis of wood for the diagnostic chromones using DART-TOFMS followed by discriminant analysis is sufficiently robust to differentiate wild from cultivated agarwood and provides strong inference for the origin of the agarwood.

Read More thumbnail image: Journal Highlight Distinguishing wild from cultivated agarwood Aquilaria spp_ using direct analysis in real time and time of-flight mass spectrometry

Coffee club: Roasting processes in single beans and in bulk

Date: Jan 7, 2014

Author: Steve Down

The volatile compounds emitted by coffee beans in an industrial roaster can be used to predict the degree of roasting, while those emitted from individually roasted beans can be used to distinguish between different coffee species.

Read More thumbnail image: Coffee club Roasting processes in single beans and in bulk

Allergens in wine: Protein fining agents identified

Date: Dec 15, 2013

Author: Steve Down

Residual allergenic proteins in wine originating from milk and egg white that are added as fining agents have been measured by high-resolution LC/MS analysis of their distinctive peptides that are produced after tryptic digestion.

Read More thumbnail image: Allergens in wine Protein fining agents identified
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