How to PAGE purify oligos?

David Hills david.hills at
Thu Jul 23 10:49:31 EST 1998

Try running your oligo on a denaturing polyacrylamide gel (try a high % 
eg 20 ). Run quite a lot of oligo ;) - I used to do 2 to 5 OD (I know 
it's a lot!!). The oligo can be visualized by lifting the gel onto an 
intensifying screen and illuminating with a UV lamp. A "shadow is seen.
Cut out the band and elute by soaking into TE overnight.
I used this to purify >20 oligos for making a synthetic gene 10 years ago 
and it worked well and is pretty straight forward. Many of my oligos were 
50bases  long too.

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