Abstract
Homogeneity of the existing (Virginia Tobacco Leaves CTA-VTL-2 (ICHTJ), Apatite Concentrate CTA-AC-1 (ICHTJ), Fine Fly Ash CTA-FFA-1 (ICHTJ) and candidate certified reference materials (CRMs) (IAEA-338 Lichen, IAEA-413 Algae, Spruce Shoots RMF II (Germany)) was studied by neutron activation analysis (NAA). Several samples of small mass (ca. 1 or 10 mg) taken from various containers were analyzed by instrumental NAA and the results for several elements were compared by Fisher's test and t-test with analogous series of results for samples taken from one container. In the second approach, sampling variance was estimated for some elements from overall variance and the components of analytical variance. The results were interpreted with the aid of Ingamells' sampling constant. Particle size distribution of the reference materials was also measured by several techniques. In addition quantitative determinations for some elements were performed and results compared with the certified values. The results of the present study were discussed with reference to suitability of CRMs to microanalytical techniques. It was pointed out that the term "microanalysis" itself is not always unequivocally understood and used.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
B. Kratochvil, D. Wallace, J. K. Taylor, Anal. Chem., 56 (1984) 113R.
R. DybczyŃski, H. Polkowska-Motrenko, Z. SamczyŃski, Z. Szopa, Fresenius J. Anal. Chem., 345 (1993) 99.
National Institute of Standards & Technology, Certificate of Analysis, Standard Reference Material 1515, Apple Leaves, Gaithersburg, January 22, 1993.
R. DybczyŃski, A. Tugsavul, O. Suschny, Geostand. Newsl., 3 (1979) 61.
National Institute of Standards & Technology, Certificate of Analysis, Standard Reference Material 1566a, Oyster Tissue, Gaithersburg, October 2, 1989.
National Bureau of Standards, Certificate of Analysis, Standard Reference Material 1572, Citrus Leaves, Washington, D. C., December 20, 1982.
R. Tahvonen, J. Kumpulainen, Fresenius J. Anal. Chem., 345 (1993) 240.
Report of the 2nd Co-ordination Meeting on Reference Materials for Microanalytical Nuclear Techniques, IAEA/AL/095.
P. Schramel, W. Schmolke, H. Muntau, J. Radioanal. Chem., 50 (1979) 179.
J. Kucera, L. Soukal, J. Radioanal. Nucl. Chem., 121 (1988) 245.
R. H. Filby, Son Nguyen, C. A. Grimm, G. R. Markowski, Vanavan Ekambaram, Tsuyoshi Tanaka, Lawrence Grossman, Anal. Chem., 57 (1985) 551.
D. Becker, Fresenius J. Anal. Chem., 345 (1993) 298.
Ni Bangfa, Peng Lixin, Wang Pingsheng, Tian Weizhi, J. Radioanal. Nucl. Chem., 193 (1995) 15.
R. DybczyŃski, K. Kulisa, H. Polkowska-Motrenko, Z. SamczyŃski, Z. Szopa, M. Wasek, Chem. Anal. (Warsaw), 42 (1997) 815.
P. B. Hamilton, Anal. Chem., 30 (1958) 914.
R. DybczyŃski, H. Polkowska-Motrenko, Z. SamczyŃski, Z. Szopa, Preparation and certification of the Polish reference material Virginia Tobacco Leaves (CTA-VTL-2) for inorganic trace analysis, Raporty IChTJ seria A nr 3/97, Institute of Nuclear Chemistry and Technology, Warszawa, 1997.
K. Sarkadi, I. Vincze, Mathematical Methods of Statistical Quality Control, Budapest, 1974, p. 163.
C. O. Ingamells, P. Switzer, Talanta, 20 (1973) 547.
B. Kratochvil, J. K. Taylor, Anal. Chem., 53 (1981) 924A.
M. Stoeppler, U. Kurfurst, K. H. Grobecker, Fresenius J. Anal. Chem., 322 (1985) 687.
W. E. Harris, B. Kratochvil, Anal. Chem., 46 (1974) 313.
M. Rossbach, M. Stoeppler, A. R. Byrne, Sci. Total. Environ., 139/140 (1993) 411.
A. A. Benedetti-Pichler in: Physical methods of Chemical Analysis, Vol. 3 W. M. Berl (Ed.), Academic Press, New York, N.Y., 1956, p. 183.
Concise Chemical and Technical Dictionary, Third Enlarged Edition, Edward Arnold (Publishers), Ltd. London, 1974.
The American Heritage Dictionary of the English Language, W. Morris Ed., Houghton Miffin Company, Boston, 1981.
Grant & Hackh's Chemical Dictionary, 5th ed., Mc Graw Hill, New York, 1987.
R. DybczyŃski, H. Polkowska-Motrenko, Z. SamczyŃski, Z. Szopa, Fresenius J. Anal. Chem., 360 (1998) 384.
R. DybczyŃski, K. Boboli, J. Radioanal. Chem., 31 (1976) 267.
E. PaŃczyk, M. Ligeza, L. Walis, Nukleonika, (1992) No. 4 29.
M. Rossbach, G. Kniewald, Micro-homogeneity of candidate reference materials: Results from an intercomparison study for the Analytical Quality Control Services of the IAEA, in: Report of the 2nd Co-ordination Meeting on Reference Materials for Microanalytical Nuclear Techniques, IAEA/AL/095, p. 83.
T. Tadic, M. Jaksic, I. Bogdanovic, S. Faziznic, D. Dujmic, Proton micro-PIXE control of standard reference materials for PIXE environmental applications, in: Harmonization of Health Related Environmental Measurements Using Nuclear and Isotopic Techniques, IAEA, Vienna, 1997, p. 251.
S. Hoormaert, B. Treiger, R. Van Grieken, V. Valkovic, Electron probe X-ray microanalysis for the assessment of homogeneity of candidate reference materials at the nanogram level, in: Report of the 2nd Co-ordination Meeting on Reference Materials for Microanalytical Nuclear Techniques, IAEA/AL/095, p. 29.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Dybczyński, R., Danko, B. & Polkowska-Montrenko, H. NAA Study on Homogeneity of Reference Materials and their Suitability for Microanalytical Techniques. Journal of Radioanalytical and Nuclear Chemistry 245, 97–104 (2000). https://doi.org/10.1023/A:1006727807008
Issue Date:
DOI: https://doi.org/10.1023/A:1006727807008