Professor
gdrayson@nmsu.edu | (575) 646-5839
- B.S., Chemistry & Mathematics, Baker University 1979
- Ph.D., Analytical Chemistry, University of Texas 1983
- Postdoctoral, Analytical Chemistry, Indiana University 1983-1986
Research
Dr. Rayson’s research interests pertain to the investigation of metal atoms and ions in complex chemical environments. These studies involve the elucidation of atomization, ionization, and excitation mechanisms occurring within the high temperature systems of inductively coupled argon plasma discharges and resistively heated graphite furnace atomizers. Alternately, studies of the chemical moieties on the cell walls of plants which are responsible for the selective binding of heavy metal ions from contaminated waters and soils are also pursued in the Rayson laboratory. The elucidation of these complex chemical processes necessitates the implementation of numerous, independent techniques. These “tools” have included the use of temporally and spectrally resolved atomic emission and absorption spectroscopies, laser excited luminescence measurements in both time and wavelength domains, multi-nuclear NMR spectroscopy, and frontal affinity chromatography. An example of the application of such an arsenal of techniques has been the elucidation of multiple (i.e., three) metal-coordination sites involving carboxylate groups and two additional ion-exchange site containing carboxylate and sulfonate groups, respectively, on the surface of a cell wall material derived from the plant Datura innoxia.
Presentations
Datura innoxia as a potential material for lanthanide and actinide remediation
Rayson GD, Danielson TL, Williams P,
Abstracts of Papers of The American Chemical Society, v. 223(t.1) pp. U673-U73, Apr 7, 2002.
Application of molecular fluorescence spectroscopy for the elucidation of diet composition for free-ranging herbivores
Rayson GD, Danielson TL, Anderso DM, Estell R, Fredrickson EL, Havstad KM,
Abstracts of Papers of The American Chemical Society, v. 221(pt. 1) pp. U469-U469, Apr 1, 2002.
