Calibration uncertainty

Kaj Heydorn, Thomas Anglov

Research output: Contribution to journalJournal articleResearchpeer-review

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.
Original languageEnglish
JournalAccreditation and quality assurance
Volume7
Issue number4
Pages (from-to)153-158
ISSN0949-1775
Publication statusPublished - 2002

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