title: Known addition procedure for determining fluoride in feeds with an ion-specific electrode.
mesh_terms: D000821:Animal Feed / Q000032:analysis*; D002021:Buffers; D004566:Electrodes; D005459:Fluorides / Q000032:analysis*; D006863:Hydrogen-Ion Concentration; D011199:Potentiometry
chemical_list: D002021:Buffers; D005459:Fluorides