Dr. Bryan's research focuses on the roles and impacts of toxic and nutritional trace elements in food safety; marine animal health; and mercury metrology. She began her career at NIST as a graduate student doing her master's degree thesis on "Non-lethal monitoring of trace elements in bottlenose dolphins, Tursiops truncatus" and her Ph.D. dissertation on "Influence of selenium and mercury chemistries on the progression of cardiomyopathy in pygmy sperm whales, Kogia breviceps". She has performed trace element and metalloprotein analysis using techniques such as inductively coupled plasma mass spectrometry (ICP-MS), atomic absorption spectrophotometry (AAS), liquid chromatography ICP-MS (LC-ICP-MS), and gas chromatography ICP-MS (GC-ICP-MS).
Dr. Bryan is the inorganic lead for NIST Quality Assurance Programs (QAPs) and NIST Pacific Marine Mammal Health Assessment (PMMHA) programs which are supported by collaborations with several partners. QAPs are currently in the areas of food and nutrition safety (FNSQAP), dietary supplements (DSQAP), and cannabis (CannaQAP) research. PMMHA projects include studying Hawaiian monk seals, Northern Pacific humpback whales, and bottlenose dolphin under human care in the research areas of trace elements, organic contaminants, metabolomics, stable isotopes, fatty acids, and sex/population genetics. Additionally, Colleen is the Inorganic Environmental Program Coordinator for reference materials and has been involved in several environmental projects including examining mercury spatial and temporal trends for the Alaska Marine Mammal Tissue Archival Program (AMMTAP), the Seabird Tissue Archival and Monitoring Project (STAMP), and southeastern U.S. bottlenose dolphin. She is active in developing methods and trace element value assignments to support the Standard Reference Materials program. Colleen is also the Quality Manager for the Inorganic Chemical Metrology Group in the Chemical Sciences Division.
Professional Awards and Recognition:
Student Mentoring Experience