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Journal Highlight: Novel optical absorption spectra of divalent neodymium (Nd2+) in bromide and iodide hosts

Date: Apr 9, 2018

Author: spectroscopyNOW

The electronic spectra of Nd2+ ions in bromide and iodide hosts have been measured for the first time and the effects of the halide ions have been simulated successfully.

Read More thumbnail image: Journal Highlight Novel optical absorption spectra of divalent neodymium Nd2 in bromide and iodide hosts

Journal Highlight: Assessment of chemical elements in cosmetics' eyeshadows by X‐ray fluorescence and International Nomenclature of Cosmetic Ingredients characterization

Date: Apr 9, 2018

Author: spectroscopyNOW

An EDXRF study of inorganic chemical elements in eyeshadows has shown that commercial regularization and International Nomenclature of Cosmetic Ingredients standardization are not fully complied with by manufacturers in Brazil.

Read More thumbnail image: Journal Highlight Assessment of chemical elements in cosmetics eyeshadows by Xray fluorescence and International Nomenclature of Cosmetic Ingredients characterization

Journal Highlight: Magnetic dispersive solid‐phase extraction based on graphene oxide/Fe3O4@polythionine nanocomposite followed by atomic absorption spectrometry for zinc monitoring in water, flour, celery and egg

Date: Apr 3, 2018

Author: spectroscopyNOW

A new graphene oxide/Fe3O4@polythionine nanocomposite sorbent has been produced for the magnetic dispersive solid‐phase extraction and flame atomic absorption spectrometric detection of zinc(II) in water, flour, celery and egg.

Read More thumbnail image: Journal Highlight Magnetic dispersive solidphase extraction based on graphene oxideFe3O4polythionine nanocomposite followed by atomic absorption spectrometry for zinc monitoring in water flour celery and egg

Journal Highlight: PSYCHE Pure shift NMR spectroscopy

Date: Apr 3, 2018

Author: spectroscopyNOW

Theoretical and practical aspects of Pure Shift Yielded by Chirp Excitation (PSYCHE) NMR spectroscopy have been discussed and the effects and importance of the experimental parameters highlighted, along with some recent improvements that enhance the spectral purity of PSYCHE spectra.

Read More thumbnail image: Journal Highlight PSYCHE Pure shift NMR spectroscopy

Journal Highlight: Fast microplastics identification with stimulated Raman scattering microscopy

Date: Apr 3, 2018

Author: spectroscopyNOW

Stimulated Raman scattering microscopy has been used for the first time to identify five different high production‐volume polymer types in microplastics extracted from environmental or consumer product samples.

Read More thumbnail image: Journal Highlight Fast microplastics identification with stimulated Raman scattering microscopy

Journal Highlight: The influence of bound water on the FTIR characteristics of starch and starch nanocrystals obtained from selected natural sources

Date: Apr 3, 2018

Author: spectroscopyNOW

Starch nanocrystals produced from natural sources like rice, ragi, wheat and sorghum have been compared by FTIR, DSC and TGA, showing that more bound water interacts with starch compared to starch nanocrystals.

Read More thumbnail image: Journal Highlight The influence of bound water on the FTIR characteristics of starch and starch nanocrystals obtained from selected natural sources

Advanced forensic fingerprinting: Imaging from cyanoacrylate-fumed prints

Date: Apr 1, 2018

Author: Steve Down

The classical forensic fingerprint technique of cyanoacrylate fuming is compatible with mass spectrometry imaging, say US researchers, who used an orbitrap system rather than time-of-flight techniques to improve performance and detect endogenous and exogenous substances.

Read More thumbnail image: Advanced forensic fingerprinting Imaging from cyanoacrylate-fumed prints

Asthma at work: Proteomics search for biomarkers

Date: Apr 1, 2018

Author: Steve Down

Nasal protein profiling has been used to measure the responses of people exposed to airborne allergens like isocyanates and welding fumes, leading to several candidate biomarkers for work-related asthma.

Read More thumbnail image: Asthma at work Proteomics search for biomarkers

Thermal Gradient Separation optimised by simulation

Date: Apr 1, 2018

Author: Ryan De Vooght-Johnson

High-temperature thermal gradient interaction chromatography (HT-TGIC) is a method that involves putting copolymers through heated columns in order to determine their chemical composition distribution (CCD), i.e. the ratio of the different monomer units. Scientists from Bangkok and Canada used mathematical modelling to examine the effect of having multiple adsorption/desorption stages during HT-TGIC elution, so-called multiple high-temperature thermal gradient interaction chromatography (m-HT-TGIC).

Read More thumbnail image: Thermal Gradient Separation optimised by simulation

Galen's hidden medicine: X-rays reveal

Date: Apr 1, 2018

Author: David Bradley

An X-ray fluorescence study has revealed the text of an ancient medical text, "On the Mixtures and Powers of Simple Drugs" by Galen of Pergamon written over in the 11th Century. Galen was physician to emperors and gladiators and wrote many works on medical practice and philosophy.

Read More thumbnail image: Galens hidden medicine X-rays reveal
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