Dual column and derivative techniques for improved specificity of gas-liquid chromatographic identification of organochlorine insecticide residues in soils.
D002849:Chromatography, Gas; D003634:DDT / Q000032:analysis; D004026:Dieldrin / Q000032:analysis; D007306:Insecticides / Q000032:analysis*; D008722:Methods; D012987:Soil / Q000032:analysis*
D007306:Insecticides; D012987:Soil; D003634:DDT; D004026:Dieldrin