Abstract
Studying the influence of the pH of 10% NaCl solutions used for the extraction of RNA and DNA on the yield of both nucleic acids, the maxima of pH were found at which both types of nucleic acids pass into extracts better than at neutral pH and do not remain in residues of the experimental material.The perchloric acid extraction temperature was also studied for obtaining the hydrolysate of nucleic acids from the trichloroacetic acid precipitate of sodium chloride extracts differing by 5 °C within the range of 35 °C to 90 °C and it was found that in this wide range almost the same amount of RNA is extracted by the method used. However, at a lower temperature, some DNA remained in the extracted residue of the trichloroacetic acid precipitate of sodium chloride extracts.
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