Abstract
Performance characteristics (especially accuracy) of a routine INAA with k0 standardization were verified and compared with those of INAA with a “classical” single comparator. For this purpose, samples of three certified reference materials of environmental origin (Fly Ash, Orchard Leaves and Buffalo River Sediment—all supplied by NIST) were irradiated with both kinds of comparators (Au−Zr for k0 and Zn for classical k method) in one irradiation rabbit. Also the following steps of INAA procedure were practically the same for both standardization methods used (counting, spectral processing, etc.). The results have shown that the k0 method gives sufficiently accurate results comparable with those of the well established and routinely used single comparator (Zn) method, provided proper neutron flux monitoring, efficiency calibration and also coincidence summing corrections are applied. This work shows that modern k0 standardization method in INAA can be sucessfully used in routine practice and applied with an advantage in INAA laboratories subject to changes of neutron spectra or counting conditions.
Similar content being viewed by others
References
A. SIMONITS, F. DE CORTE, J. HOSTE, J. Radioanal. Chem., 60 (1980) 461.
LIN XILEI, F. DE CORTE, L. MOENS, A. SIMONITS, J. HOSTE, J. Radioanal. Nucl. Chem., 81 (1984) 333.
F. DE CORTE, A. DEMETER, LIN XILEI, L. MOENS, A. SIMONITS, A. DE WISPELAERE, J. HOSTE, Isotopenpraxis, 20 (1984) 223.
A. DEMETER, Anal. Chim. Acta, 186 (1986) 195.
M. C. FREITAS, E. MARTINHO, Anal. Chim. Acta, 219 (1989) 317.
F. DE CORTE, A. SIMONITS, A. DE WISPELAERE, A. ELEK, J. Radioanal. Nucl. Chem., 133 (1989) 3.
F. DE CORTE, A. SIMONITS, J. Radioanal. Nucl. Chem., 133 (1989) 43.
M. DE BRUIN, P. J. M. KORTHOVEN, Anal. Chem., 44 (1972) 2382.
M. DE BRUIN, P. J. M. KORTHOVEN, P. BODE, J. Radioanal. Chem., 70 (1982) 497.
P. J. M. KORTHOVEN, Report IRI-133-70-04, IRI Delft, 1970.
F. DE CORTE, L. MOENS, A. SIMONITS, A. DE WISPELAERE, J. HOSTE, J. Radioanal. Chem., 52 (1979) 295.
F. DE CORTE, The k0 Standardization Method—a Move to the Optimization of NAA, Thesis, Rijksuniversiteit Ghent, 1987.
P. BODE, M. BLAAUW, I. OBRUSNIK, Variation of neutron flux and related parameters in an irradiation container, in use with k0-based neutron activation analysis; to be published in J. Radioanal. Chem.
M. BLAAUW, P. BODE, M. DE BRUIN, An alternative convention describing the (n, γ) reaction rate, suited for use in the k0-method; to be published in J. Radioanal. Chem.
J. OP DE BEECK, J. Radioanal. Chem., 89 (1985) 169.
F. DE CORTE, A. SIMONITS, A. DE WISPELAERE, J. HOSTE, J. Radioanal. Nucl. Chem., 113 (1987) 145.
Certificate of Analysis, Standard Reference Material 1633a, Trace Elements in Coal Fly Ash, Office of Standard Reference Materials, NBS, Washington, D.C., 1979.
Certificate of Analysis, Standard Reference Material 1571, Orchard Leaves, Office of Standard Reference Materials, NBS, Washington, D. C., 1976.
Certificate of Analysis, Standard Reference Material 2704, Buffalo River Sediment, Office of Standard Reference Materials, NIST, Washington, D. C., 1988.
O. U. ANDERS, Nucl. Instr. Methods, 68 (1969) 205.
E. S. GLADNEY, B. T. O'MALLEY, I. ROELANDTS, T. E. GILLS, NBS Spec. Publ. 260–111, Washington, 1989.
I. OBRUSNÍK, K. ECKSCHLAGER, J. Radioanal. Nucl. Chem., 112 (1987) 233.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Obrusník, I., Blaauw, M. & Bode, P. Comparison of routine INAA procedures based on k0 and kZn standardizations. Journal of Radioanalytical and Nuclear Chemistry, Articles 152, 507–518 (1991). https://doi.org/10.1007/BF02104703
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02104703