A NOTE ON THE USE OF EXCHANGE RESINS FOR THE PURIFICATION OF URINARY PURINES, KYNURENIC ACID, AND COPRORPORPHYRIN (Preliminary Report)

摘要

Preliminary studies are reported on the use of ion exchange resins for the adsorption of purines, uracil, nucleotides9 fcynurenic acidP and coproporphyrin.nAdenine and guanine are adsorbed on IR=100 resin front neutral aolutlon and eluted by HCLnEymtreniC acid and eoproporphyrin are adsorbed rora neutral solution on 1R-4resin and eluted by HGla Coproporphyrin is strongly adsorbed on IR=10Q resin from either acid, alkaline, or neutral solutione Kynurenie acid is poorly adsorbed on 2?-=100 resin from neutral aqueous solution,n"She preliminary application of these procedures to the spectrophotometric study of urine is describedo.