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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

ByDavid S. Bell

August 20th 2025

A close-up view of atomic isotopes undergoing fission, with subatomic particles in motion, including neutrons and protons, and energy waves propagating through the surrounding space | Image Credit: © Liang - stock.adobe.com

Quantifying Free Fatty Acids Using Isotope Derivatization and LC–MS

ByAaron Acevedo

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Pfizer pharmaceutical corporation campus exterior. Pfizer Inc. is a multinational pharmaceutical corporation headquartered in New York City - South San Francisco, CA, USA - 2020 | Image Credit: © MichaelVi - stock.adobe.com

Purifying Immunoglobulin-Based Therapies Using Cation Exchange Techniques

ByAaron Acevedo

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Close-Up of a Fountain Pen on Handwritten Document | Image Credit: © villorejo - stock.adobe.com

Researchers Explore Gas Chromatography to Improve Forensic Ink Analysis

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Universitat De Barcelona Exterior View on a Sunny Day | Image Credit: © Dzmitry - stock.adobe.com

Biomimetic Electrochromatography for Rapid Solute–Solvent Interaction Mapping

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July 24th 2025

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