SPECTROGRAPHIC DETERMINATION OF IMPURITIES IN NUCLEAR GRADE GRAPHITE
Technical Report
·
OSTI ID:4078643
The fluoride evolution method was adapted to the spectrographic determination of impurities in graphite. Impurities of B, Ca, Fe, Si, Ti, and V were detemnined by d-c are excitation of sample-copper fluoride mixtures with an estimated precision of plus or minus 56%. Anaiyzing the sample directly without asking permitted the determination of 0.5 to 10 ppm of these elements except calcium. The calcium lower limit was 50 ppm. Asking 1 g of sample and analyzing the rssidue extanded the limits to 0.02 ppm for boron and to 1 ppm for the others. Copper was used as the internal standard. (W.L.H.)
- Research Organization:
- General Electric Co. Hanford Atomic Products Operations, Richland, Wash.
- DOE Contract Number:
- AT(45-1)-1350
- NSA Number:
- NSA-15-012836
- OSTI ID:
- 4078643
- Report Number(s):
- HW-66219
- Country of Publication:
- United States
- Language:
- English
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