| abstract |
(57) [Problem] To provide a method for easily and safely isolating high-purity ribonucleic acid from a sample such as a cell and a reagent therefor. A ribonucleic acid complex is mixed with a sample containing a ribonucleic acid, an acidic solution containing a chaotropic agent, a water-soluble organic solvent and a nucleic acid-binding carrier, and the ribonucleic acid is adsorbed on the carrier. Separating the ribonucleic acid from the liquid phase, washing the carrier-ribonucleic acid complex if necessary, and eluting the ribonucleic acid from the carrier-ribonucleic acid complex, and a method for isolating ribonucleic acid. reagent. |