title: Microwave digestion techniques in the sequential extraction of calcium, iron, chromium, manganese, lead, and zinc in sediments.
mesh_terms: D002118:Calcium / Q000032:analysis; D002857:Chromium / Q000032:analysis; D005618:Fresh Water / Q000032:analysis; D007501:Iron / Q000032:analysis; D007854:Lead / Q000032:analysis; D008345:Manganese / Q000032:analysis; D008670:Metals / Q000032:analysis*; D008872:Microwaves; D015032:Zinc / Q000032:analysis
chemical_list: D008670:Metals; D002857:Chromium; D007854:Lead; D008345:Manganese; D007501:Iron; D015032:Zinc; D002118:Calcium