Dr. Christian Zeine is senior manager in the Scientific Affairs Group for the EMEA region, with a focus on Small Molecules, USPs General Chapters and biologics. Dr. Zeine collaborates with scientific experts and stakeholders and is responsible for protecting and growing USP’s scientific reputation in the region and globally. Before joining USP, Dr. Zeine worked for seventeen years in the field of pharmaceutical reference standards with a focus on impurities, and before that in the IVD (In Vitro Diagnostic) industry. His scientific expertise includes impurity testing, reference standards characterization and adjacent fields. Dr. Zeine has published several articles and white papers on topics such as impurities, overview of (certified) reference materials and the use of reference standards in method development and validation.