SPECTROGRAPHIC ANALYSIS OF CERIUM BY A CARRIER DISTILLATION TECHNIQUE
Technical Report
·
OSTI ID:4772500
A spectrographic method for the determination of 18 impurities in Ce is presented. The carrier distillation technique is utilized to separate the spectra of impurities from the compiex spectrum of Ce. Metal samples are ignited to the oxide, mixed with AgCl/sub 2/ carrier containing an internal standard, and excited with a 20-amp d-c arc. An additional exposure, made after carrie r depletion, provides for the determination of refractory elements. Experiments to determine the best carrier, sample-carrier ratio, electrodes, arc current, exposure conditions, internal standards, and any matrix effect are described. The relative standard deviation of the method at the 20- and 200-ppm levels is about 25 and 15%, respectively. The average relative error is about 20% in the 10- to 1,000ppm concentration range. (auth)
- Research Organization:
- Bureau of Mines. Reno Metallurgical Research Center, Nev.
- NSA Number:
- NSA-17-001376
- OSTI ID:
- 4772500
- Report Number(s):
- BM-RI-6091
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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