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GARY D. RAYSON
Professor
B.S.
Chemistry & Mathematics (Baker University) 1979;
garayson@nmsu.edu
RESEARCH PUBLICATIONS GROUP WEBPAGE
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.
Photoluminescent Distinction among Plant Life Forms Using Phosphate Buffered Saline Extract Solutions, Timothy L. Danielson, Safwan Obeidat, G. D. Rayson, R. Estell, E. L. Fredrickson, and D.M. Anderson Appl. Spectros., (In Press, 2006).
Impact of Solution pH on the Identification of Plants Using Fluorescence Spectroscopy with Buffered Saline Extracts Timothy L. Danielson, Safwan Obeidat, G. D. Rayson, D. M. Anderson, R. Estell, E.L. Fredrickson, and K.M. Havstad, Range Ecology Manage, (In Press, 2006).
A Unifying Description of Modern Analytical Instrumentation within a Course on Instrumental Methods of Analysis, Gary D. Rayson,
J. Chem.
Ed.,
81 (2004) 1767-1771. Simultaneous Multi-element Detection of Metal Ions Bound to a Datura innoxia Material Patrick A. Williams and G. D. Rayson, J. Hazard. Mater. 99 (2003) 277-285.
Fluorometry as a Tool for
Real-time Botanical Analysis
Competitive Metal Binding to
a Silicate-Immobilized Humic Material
Physical Characterization of
a Polysilicate Immobilized Biosorbent
Impact of Filter Paper on
Fluorescense Measurements of Buffered Saline Fitrates
Impact of Filter Paper on Fluorescence Measurements of Buffered Saline Filtrates, Timothy L. Danielson, Gary D. Rayson, Dean M. Anderson, Rick Estell, Ed L. Fredrickson, Barbara S. Green,
Talanta
59 (2002) 601-607. NMR Spectrometry Of Cd Binding Sites On Algae And Higher Plant Tissues, Hongying Xia and G. D. Rayson, ì113Cd
Adv.
Environ. Research,
7 (2002) 157-167. Affinity Distributions of Lead Ion Binding to an Immobilized Biomaterial Derived from Cultured Cells of Datura innoxia, Shan Lin, L. R. Drake and G. D. Rayson,
Adv.
Environ. Research
6
(2002) 523-532.
113Cd NMR Spectrometry Of Cd
Binding Sites On Algae And Higher Plant Tissues
Affinity Distributions of
Lead Ion Binding to an Immobilized Biomaterial Derived from Cultured
Cells of Datura innoxia
Statistical analyses of fluorometry data from chloroform filtrate of lamb feces A. Mukherjee, D.M. Anderson, D.L. Daniel, L.W. Murray, G. Tisone, E.L. Fredrickson, R.E. Estell, G.D. Rayson and K.M. Havstad
J. Range
Manage.
54
(2001) 370-377. Phytofiltration: Investigations of Heavy Metal Binding to a Biosorbent Derived from Datura innoxia, G.D. Rayson, L.R. Drake, Shan Lin, Hongying Xia, P.A. Williams, and P.J. Jackson Proceedings for the 10th Colloquium of the Sfb 193: Treatment of Wastewaters Containing Heavy Metal Compounds, 14 (2000) 161.
NMR Studies of Metal Binding to a Datura Innoxia Biomaterial Hongying Xia and G. D. Rayson, ìSolid-State 113Cd
Adv.
Environ. Research,
4 (2000) 69-77. Comparison of Metal Ion Binding to Immobilized Biogenic Materials in a Flowing System P. C. Stark and G. D. Rayson, Adv. Environ. Research, 4 (2000) 113-122.
Solid-State 113Cd NMR Studies of Metal Binding to a Datura Innoxia Biomaterial
Hongying Xia and G. D.
Rayson,
Atomization Interferences in
ICP Atomic Absorption Spectroscopy
Survey of Non-viable Biosorbents for Toxic Metal Removal
P. C. Stark, G. D. Rayson
and D. W. Darnall,
Solid-State 113Cd NMR
Studies of Metal Binding to a Datura Innoxia Biomaterial
Comparison of Metal Ion
Binding to Immobilized Biogenic Materials in a Flowing System
Atomization Interferences in
ICP Atomic Absorption Spectroscopy
Survey of Non-viable
Biosorbents for Toxic Metal Removal
Biologically-Generated
Materials for Metal-Ion Binding: Answers to some Fundamental
Chemical Questions, in Metal Ion Separation and Preconcentration:
Progress and Opportunities, Bond
Impact of Surface
Modification on Binding Affinity Distributions of Datura innoxia
Biomass to Metal Ions
Investigation of Al binding
to a Datura innoxia material using 27A1 NMR
Recent Presentations:
Datura innoxia as a
potential material for lanthanide and actinide remediation
Application of molecular
fluorescence spectroscopy for the elucidation of diet composition
for free-ranging herbivores
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