The Department of Health and Human Services, specifically the National Institutes of Health (NIH), is seeking preventive maintenance services for its Thermo Orbitrap Fusion Lumos mass spectrometer system, which is crucial for the Clinical Cancer Metabolism Facility's research activities. The contractor will be responsible for providing all necessary labor, materials, and equipment to maintain the system's functionality, including annual scheduled visits for cleaning, calibration, and testing, as well as emergency services at no additional cost. This procurement is vital for ensuring the accuracy and reliability of data from clinical trials, directly impacting patient care and safety, and is structured as a firm fixed-price order for one year with four optional extensions. Interested parties, particularly small businesses, are encouraged to submit capability statements by March 3, 2025, and can contact David Romley at David.Romley@nih.gov or 240-276-7822 for further information.