期刊
ACCREDITATION AND QUALITY ASSURANCE
卷 5, 期 3, 页码 104-113出版社
SPRINGER VERLAG
DOI: 10.1007/s007690050022
关键词
measurement uncertainty; method validation; precision; trueness; ruggedness; high performance liquid chromatography
A protocol has been developed illustrating the link between validation experiments and measurement uncertainty evaluation. The application of the protocol is illustrated with reference to a method for the determination of three markers (CI solvent red 24, quinizarin and CI solvent yellow 124) in fuel oil samples. The method requires the extraction of the markers from the sample matrix by solid phase extraction followed by quantification by high performance liquid chromatography (HPLC) with diode array detection. The uncertainties for the determination of the markers were evaluated using data from precision and trueness studies using representative sample matrices spiked at a range of concentrations, and from ruggedness studies of the extraction and HPLC stages.
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