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I have edited the 'GC Connections' column in LCGC for over 32 years. In that time, gas chromatography (GC) has changed from a specialized separations technique to being more routine for standardized methods, while expanding outward to complex multidimensional separations and scaling downward towards miniaturization and portability. In my last 'GC Connections' article before stepping away from the role of Editor, I give some perspective on how GC has changed and grown over the years, and where it might go in the future., I had been working for a few years at PerkinElmer in Norwalk, Connecticut, USA, as a Gas Chromatography (GC) Applications Manager when I started to receive a new technical publication [...]

Most manufacturers ship gas chromatographs with a small collection of consumable parts and accessories, such as extra ferrules, inlet liners, or septa, and a few instrument-specific tools. In earlier times, [...]

'GC Connections' presents the column's annual review of new developments in the field of gas chromatography (GC) seen at Pittcon and other venues in the past 12 months. The 70th [...]

The best troubleshooting is proactive; problems are much more easily prevented then solved. Proactive troubleshooting involves anticipating problems before they start, and stopping them before they disrupt your workflow. It [...]

John Hinshaw presents his annual review of new developments in the field of gas chromatography seen at Pittcon and other venues in the past 12 months. The 69th session of [...]

Gas chromatography makes use of a wide variety of detection methods. In addition to the most often used flame-ionization detection (FID), electron-capture detection (ECD), thermal conductivity detection (TCD), and mass-selective detection (MSD), the list of other detection methods is long. They really shine when deployed properly, but their properties and applications can be a bewildering alphabet soup. This instalment presents a compendium of gas chromatography (GC) detection methods, both past and vanished as well as those that are current and relevant to today's separation challenges., In the six and a half decades since its inception, gas chromatography (GC) has seen a wide variety of detection methods. Four of them arguably account for greater than 90% [...]

Fast gas chromatography (GC) has received new attention recently in the form of available enhanced instrument capabilities. This instalment reviews important characteristics and requirements of fast GC: What can fast [...]

In the previous instalment, we presented a case of periodically fluctuating data that did not lend itself well to trend analysis with conventional statistical methods. The data did appear to [...]

In this instalment, John Hinshaw presents an annual review of new developments in the field of gas chromatography (GC) seen at Pittcon 2017 and other venues in the past year. [...]

Gas chromatographers can control several variables that affect their separations: carrier-gas flow, column temperature, column dimensions, and stationary-phase chemistry. When faced with less than optimum resolution or separation speed, a [...]

Many gas chromatographers are not fully aware of safe practices for handling high-pressure gas cylinders. Gas chromatography (GC) operators should be trained to properly transport, install, connect, and maintain their [...]

The Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy (Pittcon) returned to Atlanta, Georgia, USA, for its 67th annual meeting on 6-10 March 2016. This year's conference saw nearly 13,000 [...]

K Kieselguhr: A diatomaceous earth used both in column chromatography and as a sample cleanup media. Only weakly adsorptive, it is also used as a support in liquid-liquid chromatography and [...]

Thermal desorption sampling often provides a means for bringing otherwise intractable samples to a gas chromatography (GC) column for separation and detection. In this instalment, John Hinshaw describes the principles [...]