Summary
Some reasons for the relatively large confidence intervals for Cr in IAEA Reference Materials are critically evaluated. Possible sources of error in the determination of Cr are mentioned.
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References
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Schelenz, R., Parr, R.M., Zeiller, E. et al. Chromium in biological materials — IAEA intercomparison results. Z. Anal. Chem. 333, 33–34 (1989). https://doi.org/10.1007/BF00572614
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DOI: https://doi.org/10.1007/BF00572614