title: A facility for in vivo measurement of lithium.
abstract: A facility for measurement of Li in-vivo based on measurement of exhaled HT gas has been constructed and tested.  Li present in the brain of therapeutically treated individuals could be measured with a dose to the brain of 1 rem. It will be possible to locate grossly the non-uniformity of Li, left-right or front-back sides of the brain, by choosing the proper energy of neutrons. Experiments with larger animals such as sheep are planned.
mesh_terms: D001826:Body Fluids / Q000032:analysis; D001923:Brain Chemistry; D001944:Breath Tests; D006801:Humans; D006859:Hydrogen / Q000032:analysis; D008094:Lithium / Q000032:analysis*; D008099:Liver / Q000032:analysis
chemical_list: D006859:Hydrogen; D008094:Lithium