title: The evaluation of a photometer (the Radiometer OSM2) for the determination of haemoglobin concentration and per cent oxyhaemoglobin and carboxyhaemoglobin in blood.
abstract: Haemoglobin concentration and its saturation with oxygen and carbon monoxide were estimated in identical blood samples using an automated two-wavelength photometer (the Radiometer OSM2) and standard methods. The instrument was easy to operate and maintain and, in general, was accurate and repeatable. At carboxyhaemoglobin levels below 1.5%, however, the precision of the instrument was poor.
mesh_terms: D002263:Carboxyhemoglobin / Q000032:analysis*; D005069:Evaluation Studies as Topic; D006454:Hemoglobins / Q000032:analysis*; D006801:Humans; D010092:Oximetry / Q000379:methods* / Q000592:standards; D010108:Oxyhemoglobins / Q000032:analysis*; D013053:Spectrophotometry / Q000295:instrumentation*
chemical_list: D006454:Hemoglobins; D010108:Oxyhemoglobins; D002263:Carboxyhemoglobin