title: Determination of lead, cadmium, copper and zinc in biological materials by anodic stripping polarography.
mesh_terms: D002104:Cadmium / Q000032:analysis*; D003300:Copper / Q000032:analysis*; D006863:Hydrogen-Ion Concentration; D007854:Lead / Q000032:analysis*; D010944:Plants; D011048:Polarography; D015032:Zinc / Q000032:analysis*
chemical_list: D002104:Cadmium; D007854:Lead; D003300:Copper; D015032:Zinc