Qiagen high speed maxi (Sudheendra Rao N R)
(by Nikola.Wenta from nottingham.ac.uk)
Sun Feb 17 12:48:17 EST 2008
Is the column for the maxi prep a silica membrane like for other DNA purification kits? If so, then different yields could be explained easily because the silica gel is a natural product of varying quality. But anyway, it should not be possible that special lots lead to zero-yield but lower yields.
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