title: [Application of the method of counting single electron impulses from the output of a photomultiplier for determining the concentration of Na+ and K+ in biological micro samples].
mesh_terms: D004581:Electronics; D008722:Methods; D008832:Microchemistry / Q000295:instrumentation; D011188:Potassium / Q000032:analysis*; D012964:Sodium / Q000032:analysis*; D013053:Spectrophotometry / Q000295:instrumentation
chemical_list: D012964:Sodium; D011188:Potassium
vernacular_title: Primenenie metoda scheta odnoélektronnykh impul'sov s vykhoda FEU dlia opredeleniia kontsentrastsiĭ Na+ i K+ v biologicheskikh mikroob"ektakh.