Articles by Ronald E. Majors - Chromatography Online
Articles by Ronald E. Majors

Ronald E. Majors

"Column Watch" and "Sample Prep Perspectives" Editor

Ron Majors, editor of "Column Watch" and "Sample Prep Perspectives," has been with LCGC North America for over 26 years. Currently a senior scientist with Agilent Technologies, Wilmington, Delaware, Ron is known industry-wide as one of the premier chromatography experts in the field. He is also a member of LCGC's editorial advisory board.

New Chromatography Columns and Accessories at Pittcon 2014, Part I
April 1, 2014

New product introductions in the areas of HPLC columns for reversed-phase LC, HILIC, ion-exchange and ion chromatography, SEC, and specialty columns for specific types of analyses are covered.

HPLC Column Technology 2014: State of the Art
April 1, 2014

A brief introduction to the articles presented in this supplement

New Chromatography Columns and Accessories at Pittcon 2014 (Part 1)
April 1, 2014

Part 1 of our annual report on new products introduced at Pittcon. This month, columns are highlighted, covering HPLC/UHPLC columns, packings, and related products.

The Role of Selectivity in Extractions: A Case Study
February 1, 2014

In this column, the selective removal of a fat-substitute in food products is discussed to demonstrate options for obtaining selectivity during extraction.

Electrical Potential as a Driving Force in Sample Preparation
January 14, 2014

A look at five sample preparation methods where the application of a charge across barriers provides enhanced selectivity

Expand your Horizons
January 1, 2014

Entirely new sample preparation technologies continue to be introduced, mainly in the academic sector. Some of these technologies will undoubtedly stay in the academic laboratory. However, some new technologies may "cross the chasm" and eventually become a standard laboratory procedure. This instalment will examine some of those methods.

Novel Sorbents for Solid–Liquid Extraction
December 1, 2013

Some solid–liquid extraction sorbents that have had significant development recently include MIPs, dSPE for QuEChERS, nanomaterials, and mixed-mode and silicone monolith sorbents.

Novel Sorbents for Solid–Liquid Extraction
December 1, 2013

In this instalment Ron Majors discusses new sample preparation media that could result in improved or even "breakaway" performance for solid–liquid extractions. Some of these sorbents are based on new novel bonded phases to existing media while others are based on new extraction phases, such as carbon on silica, other metal oxides, or polymeric media. With resulting new selectivities, sample preparation could be performed more quickly in fewer steps than typical of usual adsorbents

The Top 10 HPLC and UHPLC Column Myths: Part 2
November 1, 2013

In the final part, the top 10 HPLC and UHPLC column myths are presented and attempts are made to demystify them by offering some evidence that they are untrue. This part will feature myths five to one.


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Sample Prep Perspectives | Ronald E. Majors:

LCGC Columnist 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 in existing technology lines.

LATEST: The Role of Selectivity in Extractions: A Case Study

History of Chromatography | Industry Veterans:

With each installment of this column, a different industry veteran covers an aspect of the evolution and continued development of the science of chromatography, from its birth to its eventual growth into the high-powered industry we see today.

LATEST: Georges Guiochon: Separation Science Innovator

MS — The Practical Art| Kate Yu:
Kate Yu is the editor of 'MS-The Practical Art' bringing 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: Mass Spectrometry for Natural Products Research: Challenges, Pitfalls, and Opportunities

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, Vice President of LC Resources and world renowned expert on HPLC, is able to highlight common problems and provide remedies for them.

LATEST: LC Method Scaling, Part I: Isocratic Separations

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