Leigh Foster has been an R&D Scientist at Thermo Fisher Scientific since 2014, specializing in mass spectrometry reagents and proteomics. She has driven the development of numerous solutions for quantitative multiplexing and PTM analysis, including the Thermo phospho-peptide enrichment kit. Her expertise spans magnetic-based multi-omic extraction, IP-MS workflows, and standard development for mass spectrometry and cryo-EM.