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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

Journal Highlight: Ultraviolet/visible/near-infrared spectral analysis and chemometric tools for the discrimination of wines between subzones inside a controlled designation of origin: a case study of Rías Baixas

Date: Feb 18, 2013

Author: spectroscopyNOW

Chemometrics combined with ultraviolet, visible and near-infrared spectral analysis were evaluated to classify wines belonging to the controlled designation of origin (DO) Rías Baixas (Spain).

Read More thumbnail image: Journal Highlight Ultravioletvisiblenear-infrared spectral analysis and chemometric tools for the discrimination of wines between subzones inside a controlled designation of origin a case study of Rias Baixas

Wonderful webs: Elastic data analysed

Date: Feb 15, 2013

Author: David Bradley

The full range of elastic properties of an intact spider's web have been catalogued by researchers in the USA using the relatively uncommon technique of Brillouin spectroscopy. The research offers an intriguing picture not only of one of nature's most fascinating structures but might also point the way towards novel "bio-inspired" materials.

Read More thumbnail image: Wonderful webs Elastic data analysed

Journal Highlight: Application of chemometrics in authentication of herbal medicines: A review

Date: Jan 21, 2013

Author: spectroscopyNOW

This review comprises over 150 studies on the significance of chemometric methods in the discrimination of many herbs from closely related species and from adulterants, based on the principal bioactive components and phytochemical diversity.

Read More thumbnail image: Journal Highlight Application of chemometrics in authentication of herbal medicines A review

Water, water: Aqueous perturbations

Date: Jan 15, 2013

Author: David Bradley

Aquaphotomics, a new near infrared spectroscopic discipline, together with multivariate curve resolution-alternating least squares have being used to characterise the hydrogen bond perturbations in aqueous systems.

Read More thumbnail image: Water water Aqueous perturbations

Journal Highlight: Classification and discrimination of some cosmetic face powders using XRF spectrometry with chemometric data analysis

Date: Dec 17, 2012

Author: spectroscopyNOW

Wavelength-dispersive X-ray fluorescence spectrometry has been employed for multi-elemental analysis of cosmetic powders, with cluster analysis and principal components analysis discriminating between samples of traditional or mineral formulation.

Read More thumbnail image: Journal Highlight Classification and discrimination of some cosmetic face powders using XRF spectrometry with chemometric data analysis

New type of water found: It's in the mix

Date: Dec 15, 2012

Author:

Raman scattering and multivariate curve resolution allows an unprecedented signal-to-noise ratio of 10,000-to-1 in a study that reveals a previously unknown structure lying between liquid water and its vapour when oil is present.

Read More thumbnail image: New type of water found Its in the mix

Celebrate 25 Years of Publishing Excellence in Chemometrics with the Journal of Chemometrics

Date: Nov 26, 2012

Author: spectroscopyNOW

Don’t miss this free Special Issue collection of reviews and research articles showcasing the ongoing vibrancy and relevance of chemometrics.

Read More thumbnail image: Celebrate 25 Years of Publishing Excellence in Chemometrics with the Journal of Chemometrics
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