title: Lithium ion-selective electrodes containing TOPO: determination of serum lithium by flow injection analysis.
mesh_terms: D004566:Electrodes; D006801:Humans; D008094:Lithium / Q000097:blood*; D009943:Organophosphorus Compounds
chemical_list: D009943:Organophosphorus Compounds; C044965:trioctyl phosphine oxide; D008094:Lithium