The Department of Agriculture Agricultural Research Service Field Research Implementation and Information Delivery Midwest Area awarded a $260,560.88 firm-fixed-price purchase order to Thermo Electron North America LLC for an isotope ratio mass spectrometer and analytical package. The solicitation sought quotes for an isotope ratio mass spectrometer, elemental analyzer, gas chromatograph, autosampler, power supply, and microbalance to support the USDA-ARS-MWA-EIDMRU facility in Marshfield, Wisconsin. Thermo Electron North America LLC will deliver the specified mass spectrometer and analytical equipment to the government facility by August 7, 2023 to support the Department of Agriculture's agricultural research and development activities. No set-aside was designated for this requirement, which was awarded under the Lowest Price Technically Acceptable source selection method.