## 20% of randomly chosen chromatograms [Bioanalytics]

Hi,

Sorry for ressurecting an already thoroughly discussed topic.

» OK, subjects should be selected in a random manner – but IMHO after the analyses.
» You can set up anything in
» , but why don’t you go for ‘true’ random numbers?

My question is this, which part of the guideline was it stated that the 20% Chromatogram has to be selected in a random fashion?

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

Regards,

Edit: Merged with a later (deleted) post. Hint: You can edit your original post for 24 hours. [Helmut]

Scopy