Journal of Chromatography A’s Post

The review article entitled "Advances in Analytical Technologies for Emerging Drug Modalities and Their Separation Challenges in LC-MS Systems," published in the Journal of Chromatography A (Journal of Chromatography A 1732 (2024) 465226), describes the latest advances in LC-MS, focusing on the challenges associated with the analysis of new biotherapeutics, also known as “new modalities”. The paper outlines the growing complexity of biopharmaceutical products such as antibody-drug conjugates (ADCs), monoclonal antibodies (mAbs), and gene therapy products, which require state-of-the-art analytical methods, due to their complex structures. The review highlights the rapid development of novel LC-MS methodologies adapted for these complex modalities, including AEX-MS, RP-IP-LC-MS, HILIC-MS, and microflow-LC-MS. Each method presents unique advantages, but also specific challenges, particularly in the separation and quantification of biomolecules at low concentration. The paper highlights the importance of sample preparation, with various techniques such as enzyme digestion, denaturation, and solid-phase extraction, which are critical to enahnce sensitivity and reproducibility. This work is a comprehensive guide for researchers navigating in the complex landscape of biotherapeutics analysis, offering interesting perspectives into the current state and future directions of LC-MS technologies. Congratulations to the authors for their interesting contribution to the field!

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