Size-Exclusion Chromatography (SEC)

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David S. Bell, Lead Consultant and Owner at ASKkPrime, LLC, specializes in separation science consultancy, and is the Editor of the “Column Watch” series of articles, serving on the Editorial Advisory Board for LCGC International. With over 30 years of experience, he has contributed significantly to chromatography advancements, focusing on stationary phase design, device development, and molecular interaction research. Dave’s work spans gas chromatography, liquid chromatography, sample preparation, and pharmaceutical analytical method development. He holds a PhD in Chemistry from The Pennsylvania State University, has presented research globally, and has authored more than 95 peer-reviewed and trade magazine articles.
Innovations in Liquid Chromatography: 2025 HPLC Column and Accessories Review

June 5th 2025

The latest edition of "Column Watch" features our annual review of new liquid chromatography columns and accessories, introduced at Pittcon and other events over the past 12 months.

Amsterdam, The Netherlands, 17.11.2023, The Vrije Universiteit Amsterdam, a public research university located at the Zuidas district of Amsterdam | Image Credit: © Milos - stock.adobe.com
Characterizing Polyamides Using Reversed-Phase Liquid Chromatography

May 5th 2025

Foliage background with a variety of vibrant plant leaves showing a diverse ecosystem and the biodiversity of nature. | Image Credit: © Leigh Prather - stock.adobe.com
Characterizing Plant Polysaccharides Using Size-Exclusion Chromatography

April 4th 2025

Rethinking Chromatography Workflows with AI and Machine Learning
Rethinking Chromatography Workflows with AI and Machine Learning

April 1st 2025

Influence of Concentration in Conventional GPC/SEC and Advanced Detection GPC/SEC
Influence of Concentration in Conventional GPC/SEC and Advanced Detection GPC/SEC

March 21st 2025

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