RNA extraction using trizol/tri

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RNA extraction with TRIZOL (Invitrogen product name) or the equivalent TRI (Sigma-Aldrich product name) is a common method of total RNA extraction from cells. It takes slightly longer than column-based methods like RNAeasy but it has higher capacity and can yield more RNA.

Contents

Principle

Reagents

  • TRIzol Reagent (final concentration):

Phenol in saturated buffer (38 %) -- 380 ml/liter 
Guanidine thiocyanate (0.8 M) -- 118.16 g 
Ammonium thiocyanate (0.4 M) -- 76.12 g 
Sodium acetate, pH5 (0.1 M) -- 33.4 ml of 3M stock 
Glycerol -- 50 ml   
H2O to 1.0 liter

  • 0.8 M sodium citrate / 1.2 M NaCl
  • isopropanol (2-propanol)
  • chloroform
  • 75% EtOH in DEPC H2O
  • RNase free water (filtered or DEPC)

draw water into RNase-free glass bottles
add diethylpyrocarbonate (DEPC) to 0.01% (v/v)
let stand overnight and autoclave

Steps

Common mistakes

See also

External links

Reagents

Protocols

Tips

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