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Column: Column Watch

What Ever Happened to CEC?

December 1, 2009

In this installment, columnist Ron Majors and guest columnist Frantisek Svec address the current status of CEC, once the hottest topic in the field.

Hydrogen for GC and GC–MS

January 1, 2010

Hydrogen carrier gas can be an effective replacement for helium in many gas chromatography (GC) and GC–mass spectrometry (MS) applications. Hydrogen provides a better combination of efficiency and speed over a wide range of linear velocities. Carrier-gas quality hydrogen can be generated using hydrogen generators that pay for themselves in a relatively short time. Concerns over its safety are greatly exaggerated but some degree of caution is necessary.

Trends in HPLC Column Usage

November 1, 2009

In this installment of "Column Watch," Ron Majors looks at the results of a recent HPLC column survey conducted by LCGC North America.

Adjustment to the Chromatographic System in U.S. Pharmacopeia Monographs: Flexibility and Limitations

October 1, 2009

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

Highlights of HPLC 2009

September 1, 2009

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

The Advent and Potential Impact of Ionic Liquid Stationary Phases in GC and GCxGC

August 1, 2009

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

The Continuing Acetonitrile Shortage: How to Combat it or Live with It

June 1, 2009

Ron Majors provides an unbiased look at this present crisis and gives alternative solutions.

New Chromatography Columns and Accessories at Pittcon 2009: Part II

April 1, 2009

Ron Majors brings readers the second part of his yearly review of all that was new and innovative at the annual Pittsburgh Conference.

New Chromatography Columns and Accessories at Pittcon 2009: Part I

March 1, 2009

Ron Majors brings readers his yearly review of all that was new and innovative at the annual Pittsburgh Conference.

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