CHROMATOGRAPHY ON STARCH COLUMNS.
D002845:Chromatography; D011687:Purines; D011743:Pyrimidines; D012106:Research; D013213:Starch
D011687:Purines; D011743:Pyrimidines; D013213:Starch; C030985:purine
CHROMATOGRAPHY; EXPERIMENTAL LAB STUDY; PURINES; PYRIMIDINES