The US Geological Survey requires mineral separation, LA-ICPMS spot analyses, and CA-ID-TIMS analyses for the Alaska Science Center. All services will be performed at the contractor's laboratory. The estimated period of performance runs from July 15, 2026, through September 30, 2027. This opportunity is a small business set-aside under NAICS code 541380. Quotes will be evaluated using a tradeoff method considering experience, technical capability, price, and past performance.