A method for the energy-dispersive x-ray fluorescence analysis of the trace elements Zn, Rb, Sr, Zr, and Ba in carbonate rocks (limestone and dolomite) is described. This method utilizes silicate rock standards, loose powder samples, and a matrix correction based on scattered radiation. Values for several international carbonate rock standards are calculated and compare favorably with neutron activation analysis results.
CrissJ. W., NRLXRF, COSMIC Program and Documentation DOD-65, Computer Software Management Information Center, University of Georgia, Atlanta, Georgia (1972).
BaedeckerP. A., “SPECTRA: Computer reduction of gamma-ray spectroscopic data,”Advances in Obsidian Glass Studies, TaylorR. E. Ed. (Noyes Press, Park Ridge, New Jersey, 1976), pp. 334–349.
18.
Certificate of Analysis, Instituto De Pesquisas Tecnologicas Do Estado De Sao Paulo, The Reference Materials Group, Technological Research Institute, Brazil.
19.
Certificate of Analysis, National Bureau of Standards, Washington, D.C.
