title: [Device for the simultaneous registration of small changes in optical density and pH and its use in biological experiments].
mesh_terms: D000205:Actomyosin / Q000494:pharmacology; D000251:Adenosine Triphosphatases / Q000032:analysis; D000818:Animals; D001671:Biochemistry / Q000295:instrumentation; D002118:Calcium / Q000032:analysis; D002413:Cations, Divalent; D003124:Colorimetry / Q000295:instrumentation; D003720:Densitometry / Q000295:instrumentation*; D004581:Electronics / Q000295:instrumentation; D006863:Hydrogen-Ion Concentration; D010783:Photometry / Q000295:instrumentation; D011092:Polyethylene Glycols / Q000494:pharmacology; D012508:Sarcolemma / Q000032:analysis; D012519:Sarcoplasmic Reticulum / Q000032:analysis; D014586:USSR
chemical_list: D002413:Cations, Divalent; D011092:Polyethylene Glycols; D000205:Actomyosin; D000251:Adenosine Triphosphatases; D002118:Calcium
vernacular_title: Pribor dlia odnovremennoĭ registratsii malykh izmeneniĭ opticheskoĭ plotnosti i pH i ego primenenie v biologicheskikh éksperimentakh