User:Jarle Pahr/DNA precipitation
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http://en.wikipedia.org/wiki/Ethanol_precipitation
http://bitesizebio.com/articles/the-basics-how-ethanol-precipitation-of-dna-and-rna-works/
http://bitesizebio.com/articles/dna-precipitation-ethanol-vs-isopropanol/
To lessen the chances of salt precipitation, isopropanol precipitations are carried our at room temperature with minimal incubation times
http://www.qiagen.com/literature/qiagennews/0399/993prah.pdf
http://nucleicacids.bitesizebio.com/articles/how-to-get-a-perfect-pellet-after-dnarna-precipitation/
Precipitation at room temperature decreases coprecipitation of salts. However, centrifugation should be carried out at 4C to avoid overheating of sample.