Separation of Molar Weight-Distributed Polyethylene Glycols by Reversed-Phase Chromatography—Analysis and Modeling Based on Isocratic Analytical-Scale Investigations

Supper M, Heller K, Söllner J, Sainio T, Kaspereit M (2022)

Publication Type: Journal article, Original article

Publication year: 2022

Journal

Processes MDPI

Book Volume: 10

Article Number: 2160

Journal Issue: 11

DOI: 10.3390/pr10112160

Abstract

The separation of polyethylene glycols (PEGs) into single homologs by reversed-phase chromatography is investigated experimentally and theoretically. The used core–shell column is shown to achieve the baseline separation of PEG homologs up to molar weights of at least 5000 g/mol. A detailed study is performed elucidating the role of the operating conditions, including the temperature, eluent composition, and degree of polymerization of the polymer. Applying Martin’s rule yields a simple model for retention times that holds for a wide range of conditions. In combination with relations for column efficiency, the role of the operating conditions is discussed, and separations are predicted for analytical-scale chromatography. Finally, the approach is included in an efficient process model based on discrete convolution, which is demonstrated to predict with high accuracy also advanced operating modes with arbitrary injection profiles.

Authors with CRIS profile

Malvina Supper Professur für Thermische Verfahrenstechnik Jakob Söllner Lehrstuhl für Thermische Verfahrenstechnik (TVT) Malte Kaspereit Professur für Thermische Verfahrenstechnik

Involved external institutions

Lappeenranta University of Technology (LUT) / Lappeenrannan teknillinen yliopisto FI Finland (FI)

How to cite

APA:

Supper, M., Heller, K., Söllner, J., Sainio, T., & Kaspereit, M. (2022). Separation of Molar Weight-Distributed Polyethylene Glycols by Reversed-Phase Chromatography—Analysis and Modeling Based on Isocratic Analytical-Scale Investigations. Processes, 10(11). https://doi.org/10.3390/pr10112160

MLA:

Supper, Malvina, et al. "Separation of Molar Weight-Distributed Polyethylene Glycols by Reversed-Phase Chromatography—Analysis and Modeling Based on Isocratic Analytical-Scale Investigations." Processes 10.11 (2022).

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