Abstract
Methods recommended by the International Standardization Organisation and Eurachem are not satisfactory for the correct estimation of calibration uncertainty. A novel approach is introduced and tested on actual calibration data for the determination of Pb by ICP-AES. The improved calibration uncertainty was verified from independent measurements of the same sample by demonstrating statistical control of analytical results and the absence of bias. The proposed method takes into account uncertainties of the measurement, as well as of the amount of calibrant. It is applicable to all types of calibration data, including cases where linearity can be assumed only over a limited range.
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References
ISO 5725–2, Accuracy of Measurement Methods and Results, 1st Edition, 1994
EURACHEM/CITAC Guide, Quantifying Uncertainty in Analytical Measurement, 2nd edn. 2000
Heydorn K (1991) Mikrochim Acta (Wien) III: 1–10
ISO Guide to the Expression of Uncertainty in Measurement, Geneva, 1993
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© 2002 Springer-Verlag Berlin Heidelberg
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Heydorn, K., Anglov, T. (2002). Calibration uncertainty. In: De Bièvre, P., Günzler, H. (eds) Measurement Uncertainty in Chemical Analysis. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-05173-3_12
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DOI: https://doi.org/10.1007/978-3-662-05173-3_12
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-07884-2
Online ISBN: 978-3-662-05173-3
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