The Column-12-10-2019

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The Column

The Eastern Analytical Symposium (EAS) Award for Outstanding Achievements in the Fields of Analytical Chemistry was presented to Joel M. Harris at EAS 2019 on Wednesday 20 November.

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The Column

LCGC is proud to announce that Daniel W. Armstrong and Szabolcs Fekete are the winners of the 13th annual LCGC Lifetime Achievement and Emerging Leader in Chromatography Awards, respectively.

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The Column

Partial coelution of chromatographic peaks is an often-encountered issue in high performance liquid chromatography (HPLC) analysis, despite best efforts in method development and optimization. Even though there are several ways of integration of overlapping signals, accurate quantification of single compounds using conventional photodiode array (PDA) detection is almost impossible without baseline separation. While extensive signal processing is well established in spectroscopic analyses such as infrared (IR) or nuclear magnetic resonance (NMR), it has not yet been commonly adapted to improve chromatographic data evaluation. This article introduces the theory and application of a novel data analysis technique for PDA detection to accurately determine and quantify single compounds, even from overlapping peaks, without the need for mass spectrometry (MS) detection.

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The Column

The “greenest solution” is certainly using no solvent but gel permeation chromatography/size-exclusion chromatography (GPC/SEC) as a liquid chromatography (LC) technique requires the use of a mobile phase. The growing awareness of the need for more sustainable (greener) solutions has focused attention on environmentally- and health-friendly solvents and solutions.

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The Column

To fully characterize a protein biopharmaceutical, it must be broken down into smaller segments (peptides). Several high performance liquid chromatography (HPLC) techniques can be used to provide a wealth of information on everything from post-translational modifications (PTMs) to the glycoprofile to information on similarity when characterizing biosimilars.