期刊
JOURNAL OF CHROMATOGRAPHY A
卷 1150, 期 1-2, 页码 93-99出版社
ELSEVIER
DOI: 10.1016/j.chroma.2006.10.043
关键词
verification of analytical results; verification tools in chromatography; validation of methods
After some two decades insisting on validation and normalization of methods, the reliability of the results in analytical chemistry continues to be unsatisfactory. Further, the processes involved are too slow, with the effect that frequently the most relevant results are obtained with methods not (yet) validated according to norms. It is time to rethink about how the reliability of the results could be improved. It is proposed to shift some of the control from the validation and normalization of method to the verification of the results, using verification tools built into the procedure: additional standards may enable the calculation of the yield of an extraction or chemical transformation, control the column performance or ensure that the fraction from a preseparation is correctly cut. Such verification tools provide control for every sample. If the correctness of results is verified for every sample, this confirms the adequate performance of the method and could replace a corresponding part of the validation. Examples are shown for a number of methods. (C) 2006 Elsevier B.V. All rights reserved.
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