LCGC North America, Mar 1, 2009

Column Watch

New Chromatography Columns and Accessories at Pittcon 2009: Part I

By Ronald E. Majors

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

LC Troubleshooting

Calibration Curves, Part I: To b or Not to b?

By John W. Dolan

This month's "LC Troubleshooting" looks at some different calibration models, how to decide if a calibration curve goes through zero, and some problems that can occur if the wrong choices are made.

GC Connections

Pinning Down Tailing Peaks

By John V. Hinshaw

The causes and cures for peak tailing are discussed, along with the various ways that chromatographers measure tailing peaks.

Directions in Discovery

Electrostatic Repulsion Hydrophilic Interaction Chromatography

By Tim Wehr

ERLIC is a new technique that shows promise as an alternative or complementary technique for both enrichment and separation of these posttranslationally-modified peptides.

News

Separation, Identification, and Quantitation of Water-Soluble Vitamins by HPLC

By Karyn M. Usher , Anna Glinko , Michael J. Bozym , Michelle L. Owens

The authors set out to perform a separation of seven water-soluble vitamins without the use of ion-pair reagents.

Market Profile

Market Profile: Laboratory Information Management Systems

With accountability and regulatory compliance being such a large part of the modern laboratory, the necessity for a laboratory information management system (LIMS) cannot be understated.

Peaks of Interest

LCGC & EARL Present CHROMacademy

CGC (Chromatographyonline.com) has developed a pilot program with EARL (EARL2learn.com), the most extensive online library of interactive web-based learning material for analytical chemistry.

New Chairman of the Board for Varian

Varian, Inc. (Palo Alto, California) announced that its board of directors has elected Garry W. Rogerson, the company?s president and chief executive officer, as chairman of the board.

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	Column Watch \| Ronald E. Majors Trends in Sample Preparation
	LC Troubleshooting \| John W. Dolan Gradient Elution, Part IV: Dwell-Volume Problems
	MS: The Practical Art \| Kate Yu Hydrogen Deuterium Exchange Mass Spectrometry: An Emerging Biophysical Tool for Probing Protein Behaviour and Higher-Order Structure
	Incognito Desert Island Data Systems
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