Abstract
Trace impurities of lithium in graphite is one of the sources of tritium in high-temperature reactors. To determine contents of less then 1ng/g a procedure based on the (n,α)-reaction of6Li was developed. The samples are irradiated in a reactor and then ignited in a Wickbold apparatus. Thereby the tritium produced by the (n,α)-reaction is completely converted in HTO, which can be easily purified by distillation and, if necessary, by a scavenger precipitation step. Several types of graphite have been investigated and the lowest content measured was 0.2 ng/g.
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H. BONKA, B. BALTES Der Hochtemperaturreaktor mit Zwischenkreislauf, Prozeßwärme. Forschungsberichte des Landes Nordrhein-Westfalen, Westdeutscher Verlag 2626, 1977, p. 32.
H. BONKA, in Behaviour of Tritium in the Environment, Proc. Symp. San Francisco, Oct. 16–20, 1978, International Atomic Energy Agency, Wien, 1979, p. 105.
B. VIALATTE, J. Radioanal. Chem., 8 (1971) 269.
C. S. SASTRI, R. CALETKA, V. KRIVAN, Anal. Chem., 53 (1981) 765.
C. S. SASTRI, R. CALETKA, V. KRIVAN, J. Radioanal. Chem., 70 (1982) 273.
J. R. McGINELY, E. A. SCHWEIKERT, Anal. Chem., 47 (1975) 2403.
R. G. OSMOND, A. A. SMALES, Anal. Chim. Acta, 10 (1954) 117.
L. N. JENKINS, A. A. SMALES, Quart. Rev. (London) 10 (1956) 83.
J. W. WINCHESTER, L. C. BATE, G. W. LEDDICOTTE, ORNL-CF-59-7-127, July 10, 1959.
D. C. AUMANN, H. J. BORN, Radiochim. Acta, 3 (1964) 623.
G. W. SMITH, D. J. SANTELLI, H. FIESS, Anal. Chim. Acta, 33 (1965) 1.
K. NIKOLOV, D. TODOROVSKY, Isotopenpraxis, 5 (1969) 408.
H. WÄNKE, E. V. MONSE, Z. Naturforsch. 10a (1955) 667.
W. A. SEDLACEK, V. A. RYAN, Anal. Chem., 40 (1968) 678.
L. CLARK, Jr., N. C. RASMUSSEN, Trans. Am. Nucl. Soc., 6 (1963) 182.
W. HERR, Z. Naturforsch., 8a (1953) 305.
E. PICCIOTTO, M. van STYVENDAEL, Compt. Rend. Acad. Sci., 232 (1951) 855.
S. AMIEL, Y. WELWART, Anal. Chem., 35 (1963) 586.
H. R. LUKENS, V. P. GUINN in P. POLISHUK (Ed.), Nucleonics in Aerospace, Plenum Press, New York 1968, p. 314.
L. KAPLAN, K. E. WILZBACH, Anal. Chem., 26 (1954) 1797.
E. L. FIREMAN, D. SCHWARZER, Geochim. Cosmochim. Acta, 11 (1957) 252.
R. WICKBOLD, Angew. Chem., 64 (1952) 133.
G. ERDTMANN, Neutron Activation Tables, Verlag Chemie, Weinheim, 1976.
P. G. FISCHER, Jül-1238, 1975.
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Erdtmann, G., Kröner, B. Determination of lithium in graphite by neutron activation analysis. Journal of Radioanalytical and Nuclear Chemistry, Articles 113, 317–326 (1987). https://doi.org/10.1007/BF02050503
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DOI: https://doi.org/10.1007/BF02050503