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Pharmaceutical Statistics Using SAS
book

Pharmaceutical Statistics Using SAS

by Ph. D. Alex Dmitrienko, Ph. D. Christy Chuang-Stein, Sr. Ralph B. D'Agostino
February 2007
Beginner to intermediate
464 pages
16h
English
SAS Institute
Content preview from Pharmaceutical Statistics Using SAS

4.8. Limit of Detection

The limit of detection (LOD) of an analytical procedure is the lowest amount of the targeted substance in the sample that can be detected reliably, but not necessarily quantified as an accurate value using the experimental conditions prescribed. A variety of methods to estimate the LOD have been proposed in the literature, generally based on the calibration information and estimates. None of them are really satisfactory and are sensitive to various assumptions related to the model, the design of experiment and modeling of heterogeneity of variances. Based on our experience, the "best" and most consistent estimate proposed for bioanalytical methods aiming at covering a large range of concentrations is based on dividing ...

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Publisher Resources

ISBN: 9781590478868