Abstract
In order to determine trace lanthanoids in geological and cosmochemical samples, an analytical procedure for radiochemical neutron activation analysis (RNAA) was developed, where lanthanoids are radio-chemically purified through precipitations of hydroxides and fluorides, and cation exchange using HBr as an eluent. Chemical yields are determined by reactivation. The procedure was applied to the Allende meteorite and geological standard rocks. Our data for Allende are in excellent agreement with literature values, and those values for standard rocks, JP-1 (peridotite) and JF-2 (feldspar), in which lanthanoids are depleted by orders of 1 to 2 compared with those in Allende, seem to be reasonable, although not properly evaluated because of large scatterings in their literature data. This suggests that the present RNAA procedure is highly effective in determining trace lanthanoids (less than 1 ng) in rock samples.
Similar content being viewed by others
References
Jarvis KE, Jarvis I (1988) Geostand Newsl 12:1–12
Jarvis KE (1988) Chem Geol 68:31–39
Schmitt RA, Smith RH, Lasch JE, Mosen AW, Olehy DA, Vasilevskis J (1963) Geochim Cosmochim Acta 27:577–622
Morrison GH, Gerard JT, Travesi A, Currie RL, Peterson SF, Potter NM (1969) Anal Chem 41:1633–1637
Wyttenbach A, Bajo S, Tobler L (1983) J Radioanal Chem 78:283–294
Ebihara M (1987) J Radioanal Nucl Chem 111:385–397
Ebihara M (1988) Proceedings of the NIPR Symposium on Antarctic Meteorites 1:102–112
Ebihara M (1989) Proceedings of the NIPR Symposium on Antarctic Meteorites 2:279–287
Ebihara M, Hirano K, Ozaki H (1992) Geochem J 26:425–434
Ebihara M (1985) Anal Sci 1:241–256
Jarosewich E, Clarke RS, Barrows JN (1987) Smiths Contrib Earth Sci 27:1–12
Itoh S, Terashima S, Imai N, Kamioka H, Mita N, Ando A (1992) Bull Geol Surv Jpn 43:659–733
Anders E, Ebihara M (1982) Geochim Cosmochim Acta 56:2363–2380
Nagasawa H, Schnetzler CC (1971) Geochim Cosmochim Acta 35:953–968
Rey P, Wakita H, Schmitt RA (1970) Anal Chim Acta 51:163–178
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Ebihara, M., Kimura, S. & Akaiwa, H. Radiochemical neutron activation analysis of trace lanthanoids in geological and cosmochemical samples. Fresenius J Anal Chem 351, 514–520 (1995). https://doi.org/10.1007/BF00322725
Received:
Revised:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00322725