The effect of the ordered phase CuAu on the accuracy of emission analysis of gold alloys |
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| Authors: | R De Marco DJ Kew JV Sullivan |
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| Institution: | Royal Melbourne Institute of Technology, GPO Box 2476V, Melbourne 3001, Victoria Australia;CSIRO Division of Chemical Physics, PO Box 160, Clayton, Victoria 3168 Australia |
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| Abstract: | The accuracy of emission determinations of gold, silver and copper in ordered Au/Ag/Cu alloys is compared with similar determinations when these alloys are disordered. The relative slope factors, KCu and KAg, depend on the concentration of copper present. The accuracy obtained in the analysis of the disordered alloys cannot be achieved for the ordered ones unless the standards used closely match the samples in composition. The ordered phase responsible for the effect is CuAu. |
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