[Gas chromatographic determination of chlorinated insecticides in butter].
D002079:Butter / Q000032:analysis*; D002845:Chromatography; D002849:Chromatography, Gas; D003634:DDT / Q000032:analysis*; D001556:Hexachlorocyclohexane / Q000032:analysis*; D012822:Silicon Dioxide
D001556:Hexachlorocyclohexane; D012822:Silicon Dioxide; D002079:Butter; D003634:DDT