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Your search keyword '"Majors, Ronald E."' showing total 24 results
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24 results on '"Majors, Ronald E."'

1. Highlights of HPLC 2017 Jeju: The HPLC 2017 Jeju conference that was held in November 2017 included valuable talks on liquid chromatography column technology and microfluidics. Here, we summarize the findings presented, reviewing how they fit into overall liquid-phase separation trends and the outlook for the future of these technologies

Author

Majors, Ronald E.

Subjects
Chemistry
Abstract

Once every two years, the popular International Symposium on High Performance Liquid Phase Separations and Related Techniques (better known as HPLC) series moves its fall meeting to Australasia. The 46th [...]

Published
2018

2. The Chromatography and Sample Preparation Terminology Guide

Author

Majors, Ronald E. and Hinshaw, John

Subjects
Chemistry
Abstract

In 2002, LCGC provided readers with a gas chromatography (GC) glossary to organize the myriad terms used in gas chromatography (1). Likewise, in 2008, the third glossary of common and [...]

Published
2018

4. Historical developments in HPLC and UHPLC column technology: the past 25 years

Author

Majors, Ronald E.

Subjects
High performance liquid chromatography -- Methods -- Evaluation, Columns -- Analysis, Chemistry
Abstract

During the course of my scientific career beginning in the 1960s, I grew up with the birth of modern liquid chromatography (LC) column technology, refinements of the instrumentation, and the [...]

Published
2015

5. Retention and selectivity of stationary phases used in HILIC

Author

Bell, David S. and Majors, Ronald E.

Subjects
Ephedrine -- Analysis, Liquid chromatography -- Analysis, Chemistry
Abstract

Hydrophilic-interaction chromatography (HILIC) is a complex system involving partition, polar, and ion-exchange interactions. Method development can be greatly facilitated by understanding the interactions that the different stationary phases provide and [...]

Published
2015

6. Understanding and improving solid-phase extraction

Author

Watson, Dawn Wallace, Raynie, Douglas E., and Majors, Ronald E.

Subjects
Chromatography -- Analysis, Extraction (Chemistry) -- Analysis, Chemistry, Analytic -- Analysis, Chemistry
Abstract

In this installment of 'Sample Prep Perspectives,' we cover some of the basic scientific principles behind solid-phase extraction (SPE) to allow the correct mode of extraction to be selected through [...]

Published
2014

7. Fittings and tubing for ultrahigh-pressure liquid chromatography

Author

Majors, Ronald E.

Subjects
Chemistry
Abstract

Given that ultrahigh-pressure liquid chromatography (UHPLC) is performed under high pressures, the design requirements of fittings, unions, tubing, in-line filters, and other supporting flow elements have become more important. This [...]

Published
2014

10. Characterizing SEC columns for the investigation of higher-order monoclonal antibody aggregates

Author

Majors, Ronald E. and Lloyd, Linda L.

Subjects
Agilent Technologies Inc. -- Product development -- Investigations, Chromatography -- Investigations, Biological products -- Product development -- Investigations, Instrument industry -- Product development -- Investigations, Monoclonal antibodies -- Investigations, Company legal issue, Chemistry, Science and technology
Abstract

With many new biopharmaceuticals now being developed, robust analytical methods are needed to ensure that these protein-based drugs are of high purity and safe with a minimum amount of side [...]

Published
2016

11. The chromatography and sample preparation terminology guide

Author

Majors, Ronald E. and Hinshaw, John

Subjects
High performance liquid chromatography, Chemistry, Science and technology
Abstract

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 [...]

Published
2016

12. Future needs of HPLC and UHPLC column technology

Author

Majors, Ronald E.

Subjects
High performance liquid chromatography, Chemistry, Science and technology
Abstract

In his final 'Column Watch' instalment, Ron Majors looks into his crystal ball and discusses future needs in the areas of high performance liquid chromatography (HPLC) and ultrahigh-pressure liquid chromatography [...]

Published
2015

13. Highlights from the HPLC 2015 Symposium

Author

Bell, David S., Wang, Xiaoli, and Majors, Ronald E.

Subjects
Agilent Technologies Inc. -- Conferences, meetings and seminars, High performance liquid chromatography -- Conferences, meetings and seminars, Instrument industry -- Conferences, meetings and seminars, Chemistry, Science and technology
Abstract

The 42nd International Symposium of High Performance Liquid Phase Separations and Related Techniques (HPLC 2015), chaired by Gerard Hopfgartner was held 21-25 June in Geneva, Switzerland. This instalment covers some [...]

Published
2015

14. Modern supercritical fluid chromatography--possibilities and pitfalls

Author

Fornstedt, Torgny and Majors, Ronald E.

Subjects
Chromatography, Chemistry, Science and technology
Abstract

There has been a revival of supercritical fluid chromatography (SFC) in recent years, especially in the chiral preparative field, but also more recently in the analytical area. However, SFC is [...]

Published
2015

15. Highlights of HPLC 2014

Author

Majors, Ronald E.

Subjects
Chemistry
Abstract

HPLC 2014 was held May 11-15 in New Orleans, Louisiana, for the first time and much earlier than normal. This installment of 'Column Watch' covers some of the technology and [...]

Published
2014

16. Current state of superficially porous particle technology in liquid chromatography

Author

Bell, David S. and Majors, Ronald E.

Subjects
High performance liquid chromatography, Chemistry, Science and technology
Abstract

The use of superficially porous particles (SPPs) in the manufacture of high performance liquid chromatography (HPLC) columns has become prominent in recent years. Over the course of the past decade [...]

Published
2015

17. New chromatography columns and accessories for 2015

Author

Swartz, Michael and Majors, Ronald E.

Subjects
MicroSolv Technology Corp., Waters Corp., Agilent Technologies Inc., Scientific equipment and supplies industry, High performance liquid chromatography, Instrument industry, Chemistry, Science and technology
Abstract

This is our annual review of new liquid chromatography (LC) columns and accessories introduced at Pittcon and throughout the previous year. This year, Michael Swartz, former author of our 'Innovations [...]

Published
2015

18. When bad things happen to good food: applications of HPLC to detect food adulteration

Author

Hurst, W. Jeffrey, Pfeifer, Kendra, and Majors, Ronald E.

Subjects
The Hershey Co., Chocolate industry, Mass spectrometry, High performance liquid chromatography, Food contamination, Chemistry, Science and technology
Abstract

Although it has been happening to some degree for centuries, food adulteration is increasingly becoming a worldwide epidemic, as evidenced by the melamine scandal of 2008 and recent meat and [...]

Published
2014

19. Avoiding reversed-phase chromatography problems through informed method development practices: choosing the stationary-phase Chemistry

Author

Aurand, Craig R., Cramer, Hugh, McKenzie, Jacinth, Bell, David S., and Majors, Ronald E.

Subjects
Chromatography -- Methods, Chemistry, Science and technology
Abstract

Many problems encountered executing high performance liquid chromatography (HPLC) methods are the result of decisions made during early method development. This instalment of 'Column Watch' discusses a critical variable in [...]

Published
2014

21. Handing over the reins

Author

Majors, Ronald E.

Subjects
Chemistry
Abstract

It has been my pleasure to write and edit articles for you in my 'Column Watch' and 'Sample Prep Perspectives' columns for nearly 33 years. Now, with a total of [...]

Published
2015

24. New Chromatography Columns and Accessories for 2015.

Author

Swartz, M. and Majors, Ronald E.

Subjects
*CHROMATOGRAPHIC analysis equipment, *BIOCHEMISTRY equipment
Abstract

The article offers brief information on several chromatography columns and accessories including the Triart C18 ExRS from YMC, the SiliaChrom ODS from SiliCycle, and the SMT AquSep from Separation Methods Technologies.

Published
2015

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