From: Improved RNA quality and TaqMan®Pre-amplification method (PreAmp) to enhance expression analysis from formalin fixed paraffin embedded (FFPE) materials
OD Ratio (260/280)
Yields (ng)
Ambion
2.1 +/- 0.1
337 +/- 58
Stratagene
147 +/- 26
Gentra
1.6 +/- 0.1
186 +/- 67
Trizol
108 +/- 72