Register Free at http://www.chromatographyonline.com/tipsandtricks Event Overview: This webcast will feature technical speakers from Phenomenex and AB SCIEX discussing tips and tricks for food laboratory scientists and method development chemists looking to establish routine workflows for true unknown contaminant screening in food samples using high resolution mass spectrometry (HRMS).  The speakers will discuss sample preparation approaches and HPLC column selection to cover a wide range of compound polarities, solubilities, and molecular weights, while also discussing how high resolution mass spectrometry, and high resolution MS/MS (MRMHR), can be incorporated in a routine testing lab for true unknown screening workflows. Key Learning Objectives: Learn method development techniques to establish unknown contaminant screening in food by LC-MS-MS, with a focus on developing methods with wide compound coverage, allowing identification of compounds that range in polarity, chemical composition, solubility, and stability. Gain a better understanding of optimizing HPLC separations for the largest compound coverage for unknown screening applications, including column stationary phase selection, mobile phase compositional changes, and solvent flow rates, and how those selections can improve peak shape, compound retention, and method robustness. Learn how high resolution mass spectrometry (HRMS) can be adopted in a food testing lab for routine unknown contaminant screening applications, with unique software that makes getting the results you need easier and faster than ever. Who Should Attend: Analytical scientists; research and development scientists; laboratory managers; food scientists; scientists in government, industry, academic, or contract laboratories using LC and LC-MS/MS methodology For questions, contact Kristen Farrell at kfarrell@advanstar.com Presenters: Philip Koerner, Ph.D. Senior Technical Manager Phenomenex Paul Winkler, Ph.D. Senior Field Application Specialist AB SCIEX Moderator: Laura Bush Editorial Director LCGC Sponsors: Presented by: Sponsored by: