Abstract
A procedure is described for the determination of Pd, Au, Ir, and Pt in rocks at the ppb concentration level. After irradiation with thermal neutrons, powdered rock samples are fused with carriers and Na2O2−NaOH. The fusion cake is dissolved in dilute HCl, and the activated noble metals and carriers are coprecipitated as a group with Te, using Sn2+ as a reductant. Gamma and X-rays are counted on semi-conductor Ge deterctors. Yields are determined by reirradiation. Results are given for several rocks, including U.S.G.S. standards PCC-1 and W-1.
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C. L. CHOU, 9th Proc. Lunar Plan. Sci. Conf., 1978, p. 219.
R. J. ARCULUS, J. W. DELANO, Geochim. Cosmochim. Acta, 45 (1981) 1331.
J. H. CROCKET, Canadian Mineral., 17 (1979) 391.
J. H. CROCKET, R. R. KEAYS, S. HSIEH, J. Radioanal. Chem., 1 (1968) 487.
H. T. MILLARD, A. J. BARTEL, in Activation Analysis in Geochemistry and Cosmochemistry, A. O. BRUNFELT, E. STEINNES, (Eds) Universitetsforlaget, Oslo, 1970, p. 353.
R. GIJBELS, H. R. MILLARD, G. A. DESBOROUGH, A. J. BARTEL, in Activation Analysis in Geochemistry and Cosmochemistry, A. O. BRUNFELT, E. STEINNES, (Eds), Universitetsforlaget, Oslo, 1971, p. 359.
R. A. NADKARNI, G. H. MORRISON, Anal. Chem., 46 (1974) 232.
E. N. GILBERT, G. V. VERIOVKIN, V. A. MIKHAILOV, J. Radioanal. Chem., 31 (1976) 365.
I. AHMAD, S. AHMAD, D. F. C. MORRIS, Analyst, 102 (1977) 17.
E. L. HOFFMAN, A. J. NALDRETT, J. C. VAN LOON, R. G. V. HANCOCK, A. MANSON, Anal. Chim. Acta, 102 (1978) 157.
F. FEIGL, Chemistry of Specific, Selective, and Sensitive Reactions, Academic Press, New York, 1949.
C. J. RODDEN (Ed.), Analytical Chemistry of the Manhattan Project, McGraw-Hill, New York, 1950.
E. R. R. MARHENKE, E. B. SANDELL, Anal. Chim. Acta, 28 (1963) 259.
R. GIJBELS, Talanta, 18 (1971) 587.
R. A. NADKARNI, G. H. MORRISON, J. Radioanal. Chem., 38 (1977) 435.
F. E. BEAMISH, J. C. VAN LOON, Analysis of Noble Metals: Overview and Selected Methods, Academic Press, New York, 1977.
T. E. GREEN, S. L. LAW, W. J. CAMPBELL, Anal. Chem., 42 (1970) 1749.
J. H. CROCKET, G. B. SKIPPEN, Geochim. Cosmochim. Acta 30 (1966) 129.
F. E. BEAMISH, J. C. VAN LOON, Recent Advances in the Analytical Chemistry of the Noble Metals, Pergamon Press, Oxford, 1972.
I. O. OSHIN, Ph. D. thesis, McMaster Univ., Hamilton, Ontario, 1981.
D. M. SHAW, J. DOSTAL, R. R. KEAYS, Geochim. Cosmochim. Acta, 40 (1976) 73.
N. J. PAGE, J. S. MYERS, J. HAFFTY, F. O. SIMON, P. J. ARUSCAVAGE, Econ. Geol., 75 (1980) 907.
J. J. ROWE, F. O. SIMON, Talanta, 18 (1971) 121.
A. F. DORRZAPF, F. W. BROWN, Appl. Spectros., 24 (1970) 415.
H. HEADY, Unpublished results cited in Ref.24. Appl. Spectros., 24 (1970) 415.
P. A. BAEDECKER, W. D. EHMANN, Geochim. Cosmochim. Acta, 29 (1965) 329.
H. HAMAGUCHI, R. KURODA, K. TOMURE, M. OSAWA, K. WARANABE, N. ONUMA, T. YASUNAGE, K. HOSOHARA, T. ENDO, Geochim. Cosmochim. Acta, 23, (1961) 296.
YU. G. SHCHERBAKOV, G. A. PEREZHOGIN, Geochem. International, (1964) 489.
F. GRIMALDI, M. SCHNEPFE, U. S. Geol. Surv. Prof. Papers, 575C (1967) C141.
B. DAS SARMA, B. N. SEN, A. N. CHOWDHURY, Econ. Geol., 60 (1965) 373.
J. R. DE LAETER, N. MERMELENGAS, Geostandards Newsletter, 2 (1978) 9.
J. W. MORGAN, G. A. WANDLESS, R. K. PETRIE, A. J. IRVING, Tectonophysics, 75 (1980) 47.
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Stockman, H.W. Neutron activation determination of noble metals in rocks: A rapid radiochemical separation based on tellurium coprecipitation. J. Radioanal. Chem. 78, 307–317 (1983). https://doi.org/10.1007/BF02530441
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DOI: https://doi.org/10.1007/BF02530441