Inorganic (metal ions) chemistry, actinide (uranium, plutonium, etc.) chemistry, rare-
earth chemistry, materials science, spectroscopy (analytical and physical chemical),
ultra-trace elemental detection, signatures, nuclear radiation detection materials, and the
detection of radioactive materials using non-radioactive techniques.

Author and co-author of over three hundred contributed scientific presentations, refereed journal publications, book chapters, and numerous invited seminars at universities, national laboratories, and industry.