The government intends to award a sole-source firm-fixed-price purchase order to Emory University for a 12-month performance period. The work supports the Sister Study PFAS and Exposomics Analysis by NIEHS, examining PFAS and persistent environmental chemicals in a U.S. women's cohort and extending analysis to additional cancers. The required targeted and untargeted analysis using LC-HRMS and GC-HRMS must be performed at Emory University's CLUES Laboratory to ensure data compatibility with prior studies. This is a notice of intent, not a request for quotation, and no solicitation will be issued. Responsible sources believing they can