reply to guanidinium thiocyanate

[Jaishree Muppala Chittoor]

You can store guanidinium solution for three months at RT.  However if you
have added 2ME then it can be stored only for a month.

Ref: single step method of RNA isolation by acid gUnidium thiocyanate-phenol
chloroform extraction.
Chomczynski,P and Sacchi,N
Anal. Biochem 162, 156-159 (1987)

Good Luck
Jaishree
[jaishre at matt.ksu.ksu.edu]