title: [Studies on the suspended particles in air. II. Determination of zinc, cadmium, lead and copper in air by low temperature radio frequency oxidation apparatus and atomic absorption spectrophotometer].
mesh_terms: D000397:Air Pollution / Q000032:analysis*; D002104:Cadmium / Q000032:analysis; D003300:Copper / Q000032:analysis; D004391:Dust / Q000032:analysis*; D007854:Lead / Q000032:analysis; D008670:Metals / Q000032:analysis*; D008722:Methods; D010084:Oxidation-Reduction; D013054:Spectrophotometry, Atomic; D015032:Zinc / Q000032:analysis
chemical_list: D004391:Dust; D008670:Metals; D002104:Cadmium; D007854:Lead; D003300:Copper; D015032:Zinc