Dr. Guodong Chen has extensive pharmaceutical research experience in major pharmaceutical companies, including Eli Lilly, Schering-Plough (now Merck) and Bristol-Myers Squibb. He is currently heading a mass spectrometry group at Bristol-Myers Squibb's Princeton site, providing mass spectrometric/analytical support to drug discovery and development programs in small molecule pharmaceuticals and biologics. He has over 45 research publications in peer-reviewed journals and 9 book chapters covering the broad area of mass spectrometry and analytical sciences. He has co-edited two books: "Characterization of Impurities and Degradants Using Mass Spectrometry" and "Mass Spectrometry of Proteins/Peptides in Drug Discovery" (respectively 2010 and forthcoming). He is a short course instructor for two short courses on "LC/MS: Theory, Instruments and Applications" and "Practical Solutions to Characterization of Protein Therapeutics Using Mass Spectrometry" at Eastern Analytical Symposium.