Chromatography of purines and pyrimidines on starch columns.
D002845:Chromatography; D011687:Purines; D011743:Pyrimidines; D013213:Starch
D011687:Purines; D011743:Pyrimidines; D013213:Starch; C030985:purine
PURINE AND PURINE BASES; PYRIMIDINES; STARCH