Current Articles - Chromatography Online
Current Articles

Using GC–MS to Observe Changes in the Essential Oil Concentrations in Cedar Tree (Juniperus virginiana) Leaves During a Drought Year

July 1, 2013

A look at how the concentration of essential oils in cedar leaves is affected by changes in temperature and the amount of rainfall

ASMS Review

July 1, 2013

We present a brief review of this year's ASMS conference, which took place June 9–13, 2013, in Minneapolis, Minnesota.

The Top 10 HPLC and UHPLC Column Myths

July 1, 2013

Evidence to demystify HPLC and UHPLC column myths

The Early Development of Size-Exclusion Chromatography: A Historical Perspective

July 1, 2013

This column installment traces the early development of SEC from its inception to its acceptance as a modern analytical technique.

Understanding Gradient HPLC

July 1, 2013

The underlying principles of gradient elution HPLC are very different from those of the isocratic mode. Appreciating the differences can lead to better methods.

Rapid and Specific Determination of Contaminants, By-Products, and Additives in Insulating Mineral Oils with Tandem Mass Spectrometry

July 1, 2013

The use of electrospray ionization–mass spectrometry for rapid and specific determination of the widely used metal deactivators Irgamet-30 and Irgamet-39 is demonstrated here.

What You Need to Know About HILIC

July 1, 2013

Davy Guillarme discussed the possibilities and limitations of HILIC in a recent web seminar. Here, he answers common questions about the method.

The Essence of Modern HPLC: Advantages, Limitations, Fundamentals, and Opportunities

June 1, 2013

The fundamental concepts of HPLC are re-examined.

A Tribute to Ron Majors

June 1, 2013

For more than 40 years, he has been a master communicator. That's just one reason he has so many fans, and friends, around the world.

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LCGC COLUMNISTS 2014

Sample Prep Perspectives | Ronald E. Majors: Ron Majors, established authority on new column technologies, keeps readers up-to-date with new sample preparation trends in all branches of chromatography and reviews developments.
LATEST: UV Detector Problems


Perspectives in Modern HPLC | Michael W. Dong: Michael W. Dong is a senior scientist in Small Molecule Drug Discovery at Genentech in South San Francisco, California. He is responsible for new technologies, automation, and supporting late-stage research projects in small molecule analytical chemistry and QC of small molecule pharmaceutical sciences. LATEST: Superficially Porous Particles: Perspectives, Practices, and Trends


MS — The Practical Art | Kate Yu: Kate Yu brings her expertise in the field of mass spectrometry and hyphenated techniques to the pages of LCGC. In this column she examines the mass spectrometric side of coupled liquid and gas-phase systems. Troubleshooting-style articles provide readers with invaluable advice for getting the most from their mass spectrometers. LATEST: Radical Mass Spectrometry as a New Frontier for Bioanalysis


LC Troubleshooting | John Dolan: LC Troubleshooting sets about making HPLC methods easier to master. By covering the basics of liquid chromatography separations and instrumentation, John Dolan is able to highlight common problems and provide remedies for them. LATEST: Problems with Large-Molecule Separations


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