yellow isopropanol

Tyson mediablitz at home.com
Fri Jan 25 14:00:26 EST 2002


...when precipitating RNA using isopropanol (Trizol method) the isopropanol
turns light yellow after about 20 minutes at room temp, and becomes dark
yellow (along with the RNA pellet) after a few hours at -20 deg.

Why is this?

Ty





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