Gas Chromatography (GC)

I started writing for LCGC in the summer of 1987. At the time, I was involved with an instrument company team specifying a new gas chromatograph.

The 58th Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy was held February 25 to March 1, 2007, at McCormick Place in Chicago, Illinois.

In the half-century since its introduction, gas chromatography (GC) has evolved into one of the most widely used tools for chemical analysis.

The complexity of the systems that are used vary from standard GC configurations to assess the effectiveness of protective clothing to trace analysis of biomedical samples with complex GC configuration.

Negative chemical ionization GC-MS, used in conjunction with automated cold-on-column injection, provides efficient and sensitive quantification of explosive residues for environmental and forensic applications.

Chiral technology has become a very important aspect for scientists involved in the pharmaceutical, chemical, and agricultural industry.

The continual increase in sample numbers in busy labs means that it is often difficult for quality control or contract analysis labs to maintain short turnaround times, particularly when instruments are already running at full capacity. To address the need for faster analysis while retaining the quality of separation offered by dedicated amino acid analysers, an improved formulation of sodium citrate based buffers has been developed by Biochrom.

It may be somewhat audacious to claim that some methods in GCÃ-GC can be called non-classical - the technique has only been around for about 15 years and one might argue that this is not long enough to establish a suite of classical methods.

The accuracy and precision of results in gas chromatography and other analytical techniques are highly dependent upon the sample and its preparation, the instrumentation, accessories and operating conditions, as well as operator skill and experience. For these reasons, accuracy and precision for a specific methodology can be expected to vary from one laboratory or operator to another. This month, we look at statistical analysis as a diagnostic tool.

Setting realistic expectations requires a good working knowledge of an instrument's capabilities in terms of the sample requirements as well as an understanding of the effects of real-world samples and their matrices on long-term instrument performance.

Separation instrument techniques are among the most widely used technologies in the analytical instrumentation market. They span the entire industrial and regional marketplace. The lab separations market includes chromatographic techniques such as analytical and preparative HPLC, GC, IC, TLC, flash, and low pressure LC.

Research group: Professor Jan Andersson, Institute of Inorganic and Analytical Chemistry, University of Münster, Münster.

in this month's "GC Connectios," John Hinshaw continues a discussion of accuracy and precision begun in an earlier installment.

Gas chromatography (GC) coupled to time-of-flight mass spectrometry (TOF-MS) offers unique solutions for various analytical applications including the analysis of food quality, authenticity and safety markers. This article provides a general overview of TOF-MS basic features, highlighting its advantages and limitations compared with GC using conventional mass analyzers. Examples of recent results obtained for selected food contaminants and flavor components are described to illustrate the potential of this recently introduced technique.

Gas chromatography (GC) coupled to time-of-flight mass spectrometry (TOF-MS) offers unique solutions for various analytical applications including the analysis of food quality, authenticity and safety markers. This article provides a general overview of TOF-MS basic features, highlighting its advantages and limitations compared with GC conventional mass analyzers. Examples of recent results obtained selected food contaminants and flavor components are described illustrate the potential of this recently introduced technique.

For a young scientist, being recognized for your hard work at such an early stage in your career is a tremendous honor.

A topic on everyone's minds these days, especially those of us who traveled by air to get to Pittcon, is Homeland Security.

The Ancient Greeks ate sheep testicles before competitions. Contemporary athletes have designer steroids. What techniques can we use to test our athletes for banned substances?

The 2007 Pittsburgh Analytical Chemistry Award was presented Tuesday morning to Jonathan V. Sweedler, Lycan Professor of Chemistry at the University of Illinois at Urbana/Champaign.

Well-known LCGC Columnists John Dolan and John Hinshaw provide their list of recommended sessions.

Good morning and welcome to LCGC's third and final day of conference coverage from Pittcon 2007.

Well-known LCGC Columnists John Dolan and John Hinshaw provide their list of recommended sessions.

Good morning, fellow Pittcon conferees, and welcome to Day 2 of LCGC North America's ongoing coverage from Pittcon 2007.

Chromatography Forum of Delaware Valley Dal Nogare Award Dr. John W. Dolan was the proud recipient of the Dal Nogare Award at Pittcon 2007, adding another bright note to his illustrious career.