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Heterogeneity Evaluation of Research Materials for Microanalysis Standards Certification

Published online by Cambridge University Press:  01 August 2004

Ryna Marinenko
Affiliation:
Surface and Microanalysis Science Division, Mail Stop 8371, National Institute of Standards and Technology (NIST), 100 Bureau Drive, Gaithersburg, MD 20899, USA
Stefan Leigh
Affiliation:
Statistical Engineering Division, Mail Stop 8980, National Institute of Standards and Technology (NIST), 100 Bureau Drive, Gaithersburg, MD 20899, USA
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Abstract

Electron microprobe testing and evaluation procedures to determine the extent of within- and between-specimen heterogeneity of reference materials and the experimental uncertainty are described. These procedures have been developed and used at NIST in the certification of several NIST Standard Reference Materials (SRMs). In this article, they have been simplified and updated for general use. Suggestions for experimental testing of specimens are described and a detailed description of the statistical evaluation process is included with an example of a data spreadsheet and instructions for its preparation.

Type
Microanalysis
Copyright
© 2004 Microscopy Society of America

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References

REFERENCES

Burdick, R.K. & Graybill, F.A. (1992). Confidence Intervals on Variance Components. New York: Marcel Dekker.
Goldstein, J.I., Newbury, D.E., Echlin, P., Joy, D.C., Romig, A.D., Jr., Lyman, C.E., Fiori, C., & Lifshin, E. (1992). Scanning Electron Microscopy and X-ray Microanalysis, 2nd ed. New York: Plenum Press.CrossRef
Heinrich, K.F.J., Myklebust, R.L., & Rasberry, S.D. (1971). Preparation and Evaluation of SRM's 481 and 482 Gold-Silver and Gold-Copper Alloys for Microanalysis, National Bureau of Standards Special Publication 260-28.
Hoaglin, D.C., Mosteller, F., & Tukey, J.W. (1991). Fundamentals of Exploratory Analysis of Variance. New York: John Wiley.CrossRef
ISO Guide 35. (1989). Certification of Reference Materials—General and Statistical Principles, 2nd ed. Switzerland: International Organisation for Standardization.
ISO Standard Handbook. (1995). Statistical Methods for Quality Control, 4th ed. Switzerland: International Organisation for Standardization, Annex B.
Marinenko, R.B., Heinrich, K.F.J., & Ruegg, F.C. (1979) Micro-homogeneity Studies of NBS Standard Reference Materials, NBS Research Materials, and other Related Samples. National Bureau of Standards Special Publication 260-65.
Marinenko, R.B., Biancaniello, F., DeRobertis, L., Boyer, P.A., & Ruff, A.W. (1981). Preparation and Characterization of an Iron-Chromium-Nickel Alloy for Microanalysis: SRM 479a. Washington, DC: National Bureau of Standards Special Publication 260-70.
Marinenko, R.B. (1982). Preparation and Characterization of K-411 and K-412 Mineral Glasses for Microanalysis. Washington, DC: National Bureau of Standards Special Publication 260-74.
Neter, J., Kutner, M.H., Nachtsheim, C.J., & Wasserman, W. (1996). Applied Linear Statistical Models, 4th ed. Chicago: Irwin/McGraw-Hill.
Rao, P. (1997). Variance Components Estimation: Mixed Models, Methodologies and Applications. London: Chapman & Hall.
Searle, S.R., Casella, G., & McCulloch, C.E. (1992). Variance Components. New York: John Wiley & Son.CrossRef
Scheffe, H. (1959). The Analysis of Variance. New York: John Wiley & Son.