Abstract
Attempts were made to find reagents which would precipitate nucleotides, nucleosides, and purine and pyrimidine bases quantitatively, but leave pentoses and their phosphoric esters in solutions.
The results so far obtained are summaried in the table. Mercuric nitrate was found to be the most useful precipitant. It precipitated the nitrogen-containing substances quantitatively, irrespective of the nature of the bases and the pentoses. Mercuric sulphate and acetate were also available for the study of the hydrolysis of yeast amino-purine nucleotides.
