title: Double activation analysis: a new application of established techniques.
mesh_terms: D000201:Activation Analysis / Q000379:methods*; D005618:Fresh Water / Q000032:analysis; D007554:Isotopes; D008345:Manganese; D011868:Radioisotopes; D014197:Trees
chemical_list: D007554:Isotopes; D011868:Radioisotopes; D008345:Manganese