Gas Chromatography (GC)

Industry veteran and 2009 LCGC Lifetime Achievement Award Winner Harold McNair writes about the early days of gas chromatography and his experiences through the years.

In this article, the authors describe a pyrolysis technique that is based on the injection of polymer emulsions or solutions using a high-temperature PTV system.

CHROMacademy will be providing a free ?Essential Guide? webinar on split/splitless injection on 26 January.

Determining pesticide residues by GC-MS

Driving under the influence is a serious criminal offense. To prove a suspect guilty calls for solid scientific evidence. The generally accepted method is to accurately measure the blood alcohol content. This article presents a static headspace-gas chromatography method, which offers reliable qualitative analysis, reproducibility, and short run times to allow for high throughput.

Hydrogen carrier gas can be an effective replacement for helium in many gas chromatography (GC) and GC–mass spectrometry (MS) applications.

This month's "GC Connections" explores the issues that can arise when deciding to upgrade or replace GC technologies.

This month in "GC Connections," John Hinshaw discusses issues that can arise when deciding to upgrade or replace gas chromatography technologies.

A generic static headspace gas chromatographic (HSGC) method for determining common residual solvents in pharmaceuticals is described.

This article describes methods to quantitatively analyse genotoxic and potentially genotoxic impurities in pharmaceutical ingredients

LCGC provides its annual editorial index as a resource for readers.

Kevin Schug talks to Harold McNair about his illustrious career in chromatography

Mass spectrometry-based electronic nose technology (MS-nose technology) is a fast hyphenated technique for digital odour characterization of food and beverage products.

This article describes a fast, simple and clean procedure to determine three organotin compounds (monobutyltin, dibutyltyin and tributyltin) in environmental samples.

Shimadzu Scientific Instruments (Columbia, Maryland) updated its existing System GC Program to include the GC-2014 gas chromatograph. In addition, the program now offers new streamlined systems for natural gas, transformer gas, and greenhouse gas analysis, as well as biofuels and biomass feedstock research.

To meet system suitability requirements, chromatographers might need to make adjustments to the high performance liquid chromatography (HPLC) operating conditions.

LECO Corporation (St. Joseph, Michigan) has introduced a series of Separation Science e-Seminars for fall 2009 designed to give scientists information on several new chromatographic techniques.

The causes and cures for peak tailing are discussed, along with the various ways that chromatographers measure tailing peaks.

John Hinshaw takes a break from the technical and visits a number of chromatography forums and discussion groups.

Ron Majors provides first-hand coverage of some of the technology and application advances reported at HPLC 2009.

The former "Milestones in Chromatography" editor returns to give readers the story of his time in the field.

Two of the 2009 R&D 100 awards have been awarded to Phenomenex for the company?s gas chromatography products.

Guest columnists explore how ionic liquids can be tweaked to mimic the popular stationary phases of today.

The separation of structurally diverse analytes is often complicated by chance coelutions with other analytes or with matrix related compounds. Often the column is blamed, but while such coelutions make analysis difficult they do not necessarily indicate a faulty column, poor chromatography or method design.

John Hinshaw discusses the effects that peak tailing has on quantitative measurement of peak height and area.