Yunli Hu is a Staff Scientist in Analytical Chemistry at Regeneron Pharmaceuticals in Tarrytown, New York. Her current role is focusing on the host cell protein characterization and quantitation by mass spectrometry. Prior to joining Regeneron, Yunli has worked at Mylan for complex product characterization by mass spectrometry from 2017 to 2021. Yunli Hu has also worked at Biogen Analytical Development group for therapeutic protein characterization from 2015 to 2017. Yunli Hu received her Ph.D from the Texas Tech University, where she focused on glycan characterization and quantitation by LC-MS/MS.