The Department of Health and Human Services, specifically the Food and Drug Administration (FDA), is seeking qualified vendors to provide an Ultra-Performance Liquid Chromatograph-Tandem Mass Spectrometer System (UPLC-MS/MS) to replace a non-functional unit at the National Center for Toxicological Research (NCTR) in Jefferson, Arkansas. The procurement aims to support critical research projects, including assessing dermal penetration of PFAS contaminants and pharmacokinetic measurements related to drug impurities, with the requirement including three option years for post-warranty maintenance and repair services. Interested small business sources and other vendors are encouraged to submit capability statements by June 19, 2025, to Warren Dutter at warren.dutter@fda.hhs.gov, as this is a sources sought announcement and not a solicitation for proposals.