title: Determination of molybdenum and tungsten in biological materials.
mesh_terms: D001391:Azo Compounds / Q000032:analysis; D002413:Cations, Divalent; D002708:Chlorella / Q000032:analysis; D003013:Clostridium / Q000032:analysis; D005069:Evaluation Studies as Topic; D005288:Ferredoxins / Q000032:analysis; D006863:Hydrogen-Ion Concentration; D007501:Iron; D008722:Methods; D008982:Molybdenum / Q000032:analysis*; D009994:Osmolar Concentration; D010710:Phosphates; D013053:Spectrophotometry; D013438:Sulfhydryl Compounds; D013464:Sulfuric Acids; D013696:Temperature; D014050:Toluene; D014414:Tungsten / Q000032:analysis*
chemical_list: D001391:Azo Compounds; D002413:Cations, Divalent; D005288:Ferredoxins; D010710:Phosphates; D013438:Sulfhydryl Compounds; D013464:Sulfuric Acids; D014050:Toluene; D008982:Molybdenum; D007501:Iron; D014414:Tungsten