title: Ficoll density gradient separation of extracellular DDT from Chlorella.
mesh_terms: D002250:Carbon Radioisotopes; D002499:Centrifugation, Density Gradient; D002708:Chlorella / Q000737:chemistry*; D003634:DDT / Q000302:isolation & purification*; D011134:Polysaccharides; D011409:Propylene Glycols; D013395:Sucrose
chemical_list: D002250:Carbon Radioisotopes; D011134:Polysaccharides; D011409:Propylene Glycols; D013395:Sucrose; D003634:DDT