[The determination of antipyrine and caffeine in the presence of phenacetin with the aid of ion exchange resins].
D000983:Antipyrine / Q000737:chemistry*; D002110:Caffeine / Q000737:chemistry*; D006296:Health Services; D007475:Ion Exchange Resins; D010615:Phenacetin / Q000737:chemistry*
D007475:Ion Exchange Resins; D002110:Caffeine; D010615:Phenacetin; D000983:Antipyrine
ACETOPHENETIDIN/chemistry; ANTIPYRINE/chemistry; CAFFEINE/chemistry