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Trace analysis of osmium and rhenium by resonance ionization mass spectrometry of sputtered atoms

Conference ·
OSTI ID:5219353
The quantitative trace analysis of Os and Re was investigated using the surface analysis by resonance ionization of sputtered atoms (SARISA) apparatus developed at Argonne National Laboratory. SARISA samples the large fraction of sputtered neutral atoms and utilizes multiphoton resonance ionization to suppress atomic and molecular interferences. Matrix effects are considerably reduced for high ionization occurs in the gas phase and is independent of the physical properties of the substrate. Synthetic metal standards and iron meteorites of known bulk Os concentration were used to establish a calibration curve for Os to test the linearity of the Os{sup +} signal over a large range in concentration. 7 refs., 1 fig.
Research Organization:
Argonne National Lab., IL (USA)
Sponsoring Organization:
DOE/ER
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
5219353
Report Number(s):
CONF-8909172-4; ON: DE90003767
Country of Publication:
United States
Language:
English