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Fluid findings: Smoke gets in your lungs

Date: Jul 15, 2013

Author: David Bradley

A multivariate analysis of data on the chemical composition of exhaled particles in the breath of smokers and non-smokers reflects another factor in how smoking can be detrimental to lung function by revealing the shift in composition of respiratory tract lining fluid.

Read More thumbnail image: Fluid findings Smoke gets in your lungs

Vendor Column: Uses for Scientific Search

Date: Jun 26, 2013

Author: Chris Stumpf

In this third article in the latest series, Waters Corporation's Chris Stumpf looks at several analytical chemistry-based roles where Scientific Search could have a measureable impact at science focused organizations.

Read More thumbnail image: Vendor Column Uses for Scientific Search

Journal Highlight: Core consistency diagnostic in PARAFAC2

Date: Jun 17, 2013

Author: spectroscopyNOW

The possibility of applying the core consistency diagnostic which is currently applied in PARAFAC1 to determine model complexity in PARAFAC2 has been investigated theoretically.

Read More thumbnail image: Journal Highlight Core consistency diagnostic in PARAFAC2

Quasi on the inside: Rare earth crystals

Date: Jun 15, 2013

Author: David Bradley

Scientists at the Ames Laboratory in the USA have used an algorithm to fish for new rare-earth quasicrystals and have pulled out a new family of binary magnetic icosahedral quasicrystals containing several different rare earth elements and cadmium. The findings demonstrate that such materials have spin glass behaviour rather than magnetic behaviour.

Read More thumbnail image: Quasi on the inside Rare earth crystals

Acoustic archaeology: A sound approach

Date: May 15, 2013

Author: David Bradley

Researchers in the UK have carried out the most detailed analysis ever of the archaeological remains of the lost medieval town of Dunwich on England's Suffolk coast. The study analysed data obtained via acoustic spectroscopy to see the ruins through the murky depths of the North Sea.

Read More thumbnail image: Acoustic archaeology A sound approach

Journal Highlight: An evaluation of standardized software for processing GC/MS data from different vendors' instruments in a forensic laboratory

Date: May 13, 2013

Author: spectroscopyNOW

The data processing performance of a third-party processing software product has been compared with the software from three instrument vendors in casework analysis in a forensic environment.

Read More thumbnail image: Journal Highlight An evaluation of standardized software for processing GCMS data from different vendors instruments in a forensic laboratory

Journal Highlight: Assessment of resin formulations and determination of the formaldehyde to urea molar ratio by near- and mid-infrared spectroscopy and multivariate data analysis

Date: Apr 15, 2013

Author: spectroscopyNOW

The molar ratios of formaldehyde to urea in resin formulations have been analyzed by ATR-FTIR and FT-NIR spectroscopy, using PCA to separate them according to molar ratios and to distinguish between two groups of resins, and SIMCA to classify new resin samples.

Read More thumbnail image: Journal Highlight Assessment of resin formulations and determination of the formaldehyde to urea molar ratio by near- and mid-infrared spectroscopy and multivariate data analysis

The Mayan blues: Unravelling a mystery

Date: Apr 15, 2013

Author: David Bradley

A team of chemists in Spain has used kinetic analysis of cyclic voltammetry, infrared and ultraviolet spectroscopic data to re-affirm their 2006 hypothesis regarding how ancient artists got the Maya blues.

Read More thumbnail image: The Mayan blues Unravelling a mystery

Journal Highlight: Detection of low-quality extra virgin olive oils by fatty acid alkyl esters evaluation: a preliminary and fast mid-IR spectroscopy discrimination by a chemometric approach

Date: Mar 18, 2013

Author: spectroscopyNOW

FT mid-IR spectroscopy with partial least squares analysis was used to predict the contents of fatty acid methyl and ethyl esters in extra virgin olive oils, allowing low-quality products to be identified.

Read More thumbnail image: Journal Highlight Detection of low-quality extra virgin olive oils by fatty acid alkyl esters evaluation a preliminary and fast mid-IR spectroscopy discrimination by a chemometric approach

Meat test: Llama burger, anyone?

Date: Mar 15, 2013

Author: David Bradley

Partial least-squares regression of data from visible and near infrared reflectance spectroscopy (VIS-NIRS) can be used to quickly discriminate between beef, horse and llama meat in processed food products.

Read More thumbnail image: Meat test Llama burger anyone
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