title: Apparatus for the simultaneous monitoring of absorbance and oxygen uptake in biological systems.
mesh_terms: D000042:Absorption; D000818:Animals; D008930:Mitochondria, Liver / Q000378:metabolism*; D008991:Monitoring, Physiologic; D010101:Oxygen Consumption; D010783:Photometry / Q000295:instrumentation*; D051381:Rats