This is a Sources Sought Notice for market research to identify potential suppliers of a Thermo-Scientific Isolink CN Combustion Elemental Analyzer or equivalent for the NOAA Alaska Fisheries Science Center. The system must seamlessly interface with an existing Thermo Scientific Delta V Advantage Isotope Ratio Mass Spectrometer to support nutritional ecology and stable isotope analysis. Delivery of the system is required no later than September 15, 2026, to the NMFS ABL Research Facility in Juneau, Alaska. No budget amount is specified in the description. Interested vendors must submit capability statements and documentation comments by 5:00 p.m. Eastern on June 4, 2026.