## Origin of figures ? [Bioanalytics]

Dear Kintan Patel,

» %CV for % recoveries across Low, med and high level shall be within 20 %.

Why 20 % ? Where did you take that value from (apart from your own SOP) ?
How do you calculate the CV: take all individual values ? Or the average at L, average at M and average at H level ?

» » Why 30% to 120% ? Where do these values come from ?
»
» This is just example. You can keep accepted % recovery as 25 % to 125 % etc. in you SOP [...]
Right. Then e.g., not i.e.

Regards
Ohlbe