Gas Chromatography

Oct 01, 2015
LCGC North America
A look at the the operation and maintenance of split-vent traps.
Aug 01, 2015
LCGC Europe
Ionic liquids (ILs) have become recognized in gas chromatography (GC) as stable and highly polar stationary phases with a wide application range. Having customizable molecular structures, ILs also offer a particular tunability that provides additional selectivity, and therefore may improve separation for neighbouring analytes. This article presents specific properties of IL phase capillary GC columns, including polarity scale and inner surface morphologies of IL columns. Application of IL phases in achiral and chiral GC, and multidimensional GC, are highlighted.
Jul 01, 2015
LCGC North America
Some insights into the principles and practice of implementing and improving on methods to quantitate cyanide at trace concentration levels in human blood.
Jul 01, 2015
LCGC North America
FID continues to play a crucial role for all types of gas chromatography, so it is important to understand how to use it effectively.
May 06, 2015
The Column
Solid-phase microextraction (SPME) coupled with comprehensive two-dimensional gas chromatography and time-of-flight mass spectrometry (GC×GC–TOF-MS) can be used to detect trace-level fungicides and compounds responsible for undesirable attributes known as “organoleptic faults” in wine. This article explains more.
May 01, 2015
Special Issues
The main objective of this study was to evaluate the capabilities of gas chromatography (GC) with time-of-flight mass spectrometry (MS) for screening pesticides in fruits and vegetables using a purpose-built accurate-mass database.
May 01, 2015
LCGC Europe
The development of a novel trapping system and a modified GC–MS layout (using dual chromatographic columns and cryogenic focusing devices) has enabled a major improvement in the chromatographic separation of volatile and semivolatile compounds in cigarette smoke. This improvement has led to the potential for identifying compounds which are usually masked by the solvent peak.
Apr 01, 2015
LCGC North America
Many of us use electron ionization (EI) in gas chromatography–mass spectrometry (GC–MS) without a good understanding of the technique and how we might manipulate the process to give more appropriate results or a better understanding of the analytes under investigation.
Mar 30, 2015
The Column
This article describes sampling methodology for thermal desorption–gas chromatography (TD–GC) that can extend the compatible analyte range of tests used to determine chemicals released from materials, as well as associated indoor air quality measurements.
Mar 30, 2015
The Column
A guide to simple troubleshooting steps in gas chromatography (GC) with an emphasis on petrochemical analysis.
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