Is there any DNA that can be stable in any buffer (pH about 7) at 37 ℃ ?

I need a stable DNA solution at 37℃. I have some herring sperm DNA, but there solution about 20ug/ml in HEPES (pH 7.4, 10mM) is unstable at 37℃. The UV absorption decreased after 2 days at 37 ℃. I...

30 October 2016 8,628 7 View