## 20% of randomly chosen chromatograms - In any Guideline? [Bioanalytics]

Hi Obi,

» Is the requirement for randomly selecting 20% Chromatogram in any Guideline?

It is in the guidelines to the same extent as the requirement for cherry-picking the 20%.

Make sure to have an SOP which gives an objective way to select them.

Pass or fail!
ElMaestro