[Q] DNA elution from agarose gel

[Hiranya Roychowdhury]

At 12:50 AM 3/26/97 +0900, Kim, Cheon wrote:
>
>Hi, everyone.
>
>I've read the article about a protocol using a sirynge 
>for DNA elution from agarose gel. The article (Jun 1996, 
>bionet - methods & reagents)is below. 
>
>
snip
>
>
>I have a question. Where is the step to remove EtBr?
>Is there anyone who knows the way to remove EtBr after 
>syringe filtration or other efficient DNA purification methods?
>
>
>Thanks in advance...  
>
Extract the eluted DNA with equal vol. of *TE- or water-saturated* n-butanol a few times and the EtBr will be removed in the alcohol. Alternatively, extracting with chloroform-isoamyl alcohol (CI) also works perfectly.

Dr. Hiranya Sankar Roychowdhury
Plant Genetic Engineering Lab.
New Mexico State University
Las Cruces, NM 88003
Ph. (505) 646-5785
hroychow at nmsu.edu