title: Quantitative visible spectroscopy at low temperatures: a systematic examination.
mesh_terms: D000818:Animals; D002417:Cattle; D003080:Cold Temperature; D003576:Electron Transport Complex IV / Q000032:analysis; D005615:Freezing; D006418:Heme / Q000032:analysis; D008929:Mitochondria, Heart / Q000032:analysis; D013053:Spectrophotometry / Q000379:methods*
chemical_list: D006418:Heme; D003576:Electron Transport Complex IV