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Validation steps for traceability of linear calibrated chemical measurements

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Abstract

Based on the new draft of the EURACHEM/CITAC Guide “Traceability in Chemical Measurement”, this publication describes how traceability can be achieved for chemical measurements using a linear calibration function. Traceability can be accomplished without larger expenditure, if the measurement is calibrated on the basis of appropriate reference standards and the linear regression employed is selected and validated statistically in a suitable form. The determination of nickel in aqua regia eluates of sediment samples, employed for an ICP-OES measurement, is used as a practical illustration of this approach.

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Authors and Affiliations

  1. Department of Analytical Chemistry, UFZ Centre for Environmental Research Leipzig-Halle, Permoserstrasse 15, 04318, Leipzig, Germany

    L. Brüggemann & R. Wennrich

Authors
  1. L. Brüggemann
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  2. R. Wennrich
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Correspondence to L. Brüggemann.

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Brüggemann, L., Wennrich, R. Validation steps for traceability of linear calibrated chemical measurements. Accred Qual Assur 9, 493–498 (2004). https://doi.org/10.1007/s00769-004-0824-z

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  • DOI: https://doi.org/10.1007/s00769-004-0824-z

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