GC @ separationsNOW

The Gas Chromatography channel covers all techniques used for the separation of gases, in addition to the supercritical phase.

This includes multidimensional techniques (e.g. GCxGC) and hyphenated techniques (e.g. GC-MS).

Gas Chromatography

Monthly Highlight

Last Month's Most Accessed Feature: GC-MS defeats the doping steroid cheats

Doping with anabolic steroids remains a significant problem in many sports, particularly since identification of these compounds and many of their metabolites is hampered by their relatively short lifetimes in the body. Scientists from Ghent University in Belgium used GC-MS with chemical ionisation to detect novel long-lived metabolites from the anabolic steroids oxymesterone and mesterolone.

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2018 Free Sample Issues of Key Analytical Science Journals

The 2018 free sample issues of all our Analytical Chemistry journals are now available!

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Advertorial Feature

Shimadzu Europa
Analysis of mineral oil in environmental samples according to H53

thumbnail image: <font size=3>Shimadzu Europa</font><br />Analysis of mineral oil in environmental samples according to H53

Since mineral oil hydrocarbons are difficult to biodegrade, it is very important to control the contamination of environmental samples by MOHs. The analysis of mineral oil hydrocarbons in drinking water, surface water, and waste water is defined by the European standard EN ISO 9377-2, colloquially referred to as H53. The Nexis GC-2030 with OCI-2030 injector enables efficient H53 measurements as short narrow-bore columns can be combined with a retention gap or a simple on-column liner. With the help of...

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Ezines

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Methane method makes mixture measurement quicker

Ryan De Vooght-Johnson

Oct 1, 2018

GC using a flame ionisation detector (FID) is a common and effective way of analysing mixtures of organic compounds, but quantification of every compound typically requires the preparation and injection of many standard solutions. Scientists from the University of Texas at Arlington used a carbon reactor prior to the FID that converted the analyte’s carbon atoms to methane, thus minimising the need for standards.

Problems associated with the traditional GC‐MS analysis of pregabalin have been overcome by methylating the carboxylic acid group followed by chiral derivatization at the amine group to identify the (S) enantiomer which is a controlled substance.

Fast GC runs are fine to measure volatiles in wine

Ryan De Vooght-Johnson

Sep 4, 2018

thumbnail image: Fast GC runs are fine to measure volatiles in wine

The flavour of wine and related products largely depends on the volatile compounds present, but existing methods for their analysis tend to be lengthy. Scientists from the Edmund Mach Foundation (near Trento, Italy) developed a new, fast GC method for analysing wine volatiles, applying it to white wine, grape must, wine spirits and balsamic vinegar.

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Education

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Selected key technologies of the analytical science industry are discussed by Steve Down with reference to burgeoning application areas and the scope for future improvements.

We are proud to announce a new series of educational webinars run in collaboration with Chromedia, COAST, and SciMind, a product of the American Chemical Society. These webinars will build into a must-have set of tutorial materials for the analytical scientist.

Professor Mario Thevis discusses the fundamentals of sports drug testing. A selection of compounds, new challenges, and methods currently employed in doping control laboratories are discussed.

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Journals

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The Journal of Mass Spectrometry (JMS) publishes papers on a broad range of topics of interest to scientists working in both fundamental and applied areas involving the study of gaseous ions.

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