[On the purification of extracts in determining residual DDT].
D000818:Animals; D055598:Chemical Phenomena; D002621:Chemistry; D002845:Chromatography; D002855:Chromatography, Thin Layer; D003634:DDT / Q000032:analysis*; D002523:Edible Grain / Q000032:analysis; D005506:Food Contamination; D005638:Fruit / Q000032:analysis; D008460:Meat / Q000032:analysis; D008722:Methods; D008892:Milk / Q000032:analysis; D009852:Omentum / Q000032:analysis; D014675:Vegetables / Q000032:analysis
D003634:DDT
Ob ochistke ékstraktov pri opredelenii ostatochnykh kolichestv DDT.