Samuel A. Bryan

Samuel A. Bryan serves as a Lab Fellow and Chemist at Pacific Northwest National Laboratory (PNNL), where he pioneers spectroelectrochemical sensor development for measuring chemical species in highly complex nuclear systems. His innovations have resolved critical Department of Energy safety issues, particularly regarding ferrocyanide concentration determination in nuclear waste and hydrogen flammability in Hanford waste tanks.

Dr. Bryan earned his B.S. in Chemistry from Boise State University (1979), followed by M.S. and Ph.D. degrees in Inorganic Chemistry from Washington State University (1983, 1985). His educational background established the foundation for his expertise in complex chemical systems analysis.

His research focuses on real-time spectroscopic monitoring methodologies for nuclear applications. Key contributions include developing the first-ever luminescence detection from technetium complexes, creating sensors for nuclear waste analysis, and establishing predictive models for hydrogen gas generation that continue to inform Hanford Waste Treatment Plant safety designs 25 years later. His work bridges fundamental chemistry with practical nuclear engineering solutions.

Analysis of his recent publications reveals strong emphasis on multi-modal spectroscopy (Raman, UV-Visible, NIR) combined with chemometric analysis for nuclear applications. His research spans from fundamental sensor development to practical implementation in nuclear fuel recycling, waste treatment, and safeguards verification.

• Fellow of the American Chemical Society
• Chair of Richland Section of the ACS (1998 and 2004)
• Fitzner-Eberhardt Award for Outstanding Contributions to Science and Engineering Education
• PNNL Laboratory Director's award (2005)
• ACS ChemLuminary Award for Outstanding Performance by Richland Section (2004)

Dr. Bryan's technical leadership extends to mentoring junior scientists and contributing to national initiatives in nuclear safeguards. His current research focuses on microfluidic sensor systems, multi-modal spectroscopy approaches, and advanced data analysis techniques for nuclear applications, continuing to address critical challenges in nuclear waste management and national security.