LC-MRM Quantification of Hamster Phospholipase B-Like 2 Protein (PLBL2) in Therapeutic Monoclonal Antibodies at Part-per-Billion (ppb) Levels

APPLICATION NOTE 74162 LC-MS-based host cell protein (HCP) identification and monitoring during biopharmaceutical downstream process development Authors: Xiaoxi Zhang1, Zijuan Chen2, Bingnan Li2, Jennifer Sutton3, Min Du4 Thermo Fisher Scientific 1 Shanghai, China; 2 Bioprocess Design Center, Shanghai, China; 3…

[ APPLICATION NOTEBOOK ] PEPTIDE AND PROTEIN BIOANALYSIS [ OUR SCIENTISTS ] Yun Alelyunas, PhD Before coming to Waters in 2012, Yun Alelyunas was a principal scientist and team leader at AstraZeneca for 20 years where she was involved in…

AN EFFICIENT LC-MS WORKFLOW FOR IDENTIFICATION AND MONITORING OF HOST CELL PROTEINS FOR ASSISTING MONOCLONAL ANTIBODY PURIFICATION Catalin Doneanu1, Malcolm Anderson2, Alex Xenopoulos3, Romas Skudas4, Ying Qing Yu1, Asish Chakraborty1 and Weibin Chen1 1 Waters Corporation, Milford, MA, USA;2Waters Corporation,…

Assay for Identification and Quantification of Host Cell Protein Impurities in High-Purity Monoclonal Antibodies Down to 1 ppm: An Inter-Laboratory Study Catalin E. Doneanu, Malcolm Anderson, Brad J. Williams, Matthew A. Lauber, Asish Chakraborty, and Weibin Chen Waters Corporation, Milford,…