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rssChromosomal proteins: Placental proteome in the C-HPP
Date: Apr 15, 2013
Author: Steve Down
Thousands of human placental proteins have been identified in a genome-wide proteomic analysis as part of the international Chromosome-Centric Human Proteome Project.
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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.
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Polarity changes: Simultaneous positive and negative modes in DESI
Date: Apr 15, 2013
Author: Steve Down
Danish scientists have introduced a dual-mode imaging system for desorption ionisation mass spectrometry, in which images can be acquired in positive and negative mode simultaneously.
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Plumb job for polymer: Takes the lead
Date: Apr 15, 2013
Author: David Bradley
Researchers in Iran have used flame atomic absorption spectrometry (FAAS) to test a novel imprinted polymer designed to absorb contaminating lead ions from fresh fruit and vegetables.
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Photosynthesis:Study sheds new light
Date: Apr 15, 2013
Author: David Bradley
Caltech chemists believe they can now explain one of the last remaining mysteries concerning the process of photosynthesis in which light powers chemical conversion of carbon dioxide and water into sugars and oxygen. The work is based on synthetic, spectroscopic, and electrochemical studies, including X-ray spectroscopic work, and might one day lead to a range of novel photocatalysts that could be used to drive the water-splitting reactions in a synthetic analogue of photosynthesis.
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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.
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Panacea: Liquid grace or toxic snake oil?
Date: Apr 15, 2013
Author: David Bradley
Proton NMR spectroscopy and energy dispersive X-ray fluorescence (EDXRF) spectroscopy have been used to analyse snake oil, elixirs, panaceas and other quackery found in medicines prescribed from the 18th century onwards. It turns out that many of these often-patented nostrums contained highly dangerous levels of toxic elements including arsenic, mercury and lead, as well as cocaine, heroin and high levels of alcohol.
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Vendor Column: Advantages of a Scalable Chromatography Data System
Date: Apr 10, 2013
Author: Chris Stumpf
In this second article in the latest series, Waters Corporation's Chris Stumpf continues the discussion regarding chromatography data systems with respect to its rationlization and scalability within a corporation.
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Journal Highlight: Visible and near infrared fluorescence spectral flow cytometry
Date: Apr 8, 2013
Author: spectroscopyNOW
Spectral flow cytometry instruments, software and experimental design that allow spectral flow cytometry to be integrated with conventional flow cytometry approaches are described and several near infrared emitting fluorophores are evaluated.
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Journal Highlight: Soft ionization mass spectroscopy: Insights into the polymerization mechanism
Date: Apr 8, 2013
Author: spectroscopyNOW
This review is focused on the use of soft ionization mass spectroscopy to characterize the products of polymerization/degradation reactions thereby yielding mechanistic information.
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