Chemometrics & Informatics / Ezine
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.
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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.
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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).
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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.
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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.
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Vendor Column: Two approaches to multi-vendor instrument support when standardizing your CDS Operations
Date: Jan 16, 2013
Author: Chris Stumpf
The cost of training and maintaining multiple Chromatography Data Systems are driving many organizations to standardize on a single chromatography data platform. In this first article in a brand new series, Waters Corporation's Chris Stumpf discusses things to think about when standardizing your chromatography data system (CDS) operations.
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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.
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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.
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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.
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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.
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