Dr. Ying Qing Yu is the Director of the Biopharmaceutical Application Team within the Scientific Operation Department at Waters Corporation. Her group’s focus is on Protein Biotherapeutics characterization using UPLC/QTOF MS platform. The areas of expertise for her and her team are in LC-MS method development, sample preparation and informatics. She has extensive experience in Mass Spectrometry, Gas-Phase Ion Chemistry, and Liquid Chromatography Separation Techniques.