Thomas Walter

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Articles

Retention Loss of Reversed-Phase Columns Using Highly Aqueous Mobile Phases: Fundamentals, Mechanism, and Practical Solutions

Retention Loss of Reversed-Phase Columns Using Highly Aqueous Mobile Phases: Fundamentals, Mechanism, and Practical Solutions

Fabrice Gritti;Thomas Walter
January 1st 2021

We investigate a phenomenon observed by many practitioners of reversed- phase LC: a dramatic loss in retention volume or time after the column flow is stopped and resumed when using highly aqueous mobile phases with certain columns.

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Synthesis and Applications of BEH Particles in Liquid Chromatography

Bonnie Alden;Christopher J. Hudalla;Kevin Wyndham;Thomas Walter;Nicole Lawrence;Edouard Bouvier;Daniel Walsh;Pamela Iraneta
April 1st 2012

How ethylene-bridged hybrid inorganic–organic (BEH) particles are prepared and how their special qualities can be used to improve separations

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