precision
- Guideline or reference source
- ICHQ2 Validation of analytical procedures
- Definition
- The precision of an analytical procedure expresses the closeness of agreement (degree of scatter) between a series of measurements obtained from multiple sampling of the same homogeneous sample under the prescribed conditions. Precision may be considered at three levels: repeatability, intermediate precision and reproducibility. Precision should be investigated using homogeneous, authentic samples. However, if it is not possible to obtain a homogeneous sample it may be investigated using artificially prepared samples or a sample solution. The precision of an analytical procedure is usually expressed as the variance, standard deviation or coefficient of variation of a series of measurements
- Broader Term
- validation parameters
- Narrower Term
- intermediate precision
- repeatability
- Related Term
- accuracy
- bias
- detection limit
- linearity
- quantitation limit
- range
- robustness
Send comments to info@qdossier.com Please read disclaimer before using Qsauri.