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Phthalate separation success can be secured by GC-MS

Date: Feb 15, 2017

Author: Ryan De Vooght-Johnson

Phthalate plasticisers are ubiquitous in the environment, and have long been a source of health concern, particularly in their role as endocrine disrupters. Phthalate exposure has traditionally been determined by LC-MS/MS on metabolites in urine; however, a recent paper from Toshiaki Yoshida from the Osaka Prefectural Institute of Public Health demonstrated a useful, inexpensive derivatisation/GC-MS method for detecting these metabolites.

Read More thumbnail image: Phthalate separation success can be secured by GC-MS

Journal Highlight: Recent progress of chiral stationary phases for separation of enantiomers in gas chromatography

Date: Feb 13, 2017

Author: separationsNOW

Recent progress on novel chiral stationary phases based on cyclofructan derivatives and chiral porous materials has been reviewed from original research papers published since 2010.

Read More thumbnail image: Journal Highlight Recent progress of chiral stationary phases for separation of enantiomers in gas chromatography

Journal of Separation Science Celebrates 40th Volume

Date: Feb 8, 2017

Author:

The Journal of Separation Science was born in 1978 with the name, Journal of High Resolution Chromatography, and this year celebrates its 40th birthday. To celebrate, we've created a virtual issue containing the journal's top 40 cited papers over the last four decades; and it's free for you to read for the whole of 2017.

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Smart drugs crack up due to GC heat

Date: Feb 1, 2017

Author: Ryan De Vooght-Johnson

Modafinil has legitimate medical uses for combating sleeping disorders, but it is increasingly being used, along with a number of its analogues, as a so-called ‘smart drug’ or ‘nootropic’, in order to improve mental performance. A research team from Dublin and Liverpool examined the detection of these compounds by GC-MS, where their thermal breakdown on injection into the GC can complicate results.

Read More thumbnail image: Smart drugs crack up due to GC heat

Journal Highlight: Identifying the chemical composition of decomposed residues from cyanobacterial bloom biomass by pyrolysis-GC/MS

Date: Jan 16, 2017

Author: separationsNOW

The effects of temperature and sediment on the chemical composition of cyanobacterial biomass residue was investigated in a microcosm experiment by pyrolysis-GC/MS and FTIR spectroscopy.

Read More thumbnail image: Journal Highlight Identifying the chemical composition of decomposed residues from cyanobacterial bloom biomass by pyrolysis-GCMS

Noble gas could protect stroke victims from brain damage

Date: Jan 12, 2017

Author: Ryan De Vooght-Johnson

As well as being a potent anaesthetic, xenon could be used to protect the brain from irreversible damage. A recent study from the US describes a novel way to deliver xenon into the brains of stroke patients, as well as a reliable assay to measure the amount of the gas in the blood – essential for quality control.

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Atmospheric pressure MS method gives hope on OPEs

Date: Jan 1, 2017

Author: Ryan De Vooght-Johnson

Although they have previously tended to keep a low profile, organophosphate esters (OPEs) are widespread chemicals, which have become a hot topic in the analytical world due to their potential harmful effects on health and the environment. Researchers from France and the Lebanon have used mass spectrometry with an APCI source to identify some of these compounds, comparing the results with standard EI spectra.

Read More thumbnail image: Atmospheric pressure MS method gives hope on OPEs

Heart-cutting steroids: better, faster, stronger

Date: Dec 13, 2016

Author: Ryan De Vooght-Johnson

Make way for MDGC/C/IRMS: automation of steroidal analytics offers higher turnover and minimised manual labour.

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Journal Highlight: Enantioselective gas chromatography in search of the origin of biomolecular asymmetry in outer space

Date: Dec 12, 2016

Author: separationsNOW

This review highlights current advances of enantioselective GC applied to space science, including the differentiation of enantiomers in extracts of meteorites, simulated interstellar ices and Mars soil analogues.

Read More thumbnail image: Journal Highlight Enantioselective gas chromatography in search of the origin of biomolecular asymmetry in outer space

Red light on toxic tobacco leads to class separation in China

Date: Dec 1, 2016

Author: Ryan De Vooght-Johnson

Whether we love or loathe tobacco, we have to accept that analysis of tobacco volatiles is an important topic, both for the industry and medical investigations. Scientists from China Tobacco and Zhejiang University have developed a novel method of isolating volatile components from tobacco, the data from which allowed the grouping of various tobacco samples into three distinct classes, corresponding to ‘fresh’, ‘moderate’ and ‘rich’ styles.

Read More thumbnail image: Red light on toxic tobacco leads to class separation in China
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