A SIMPLE METHOD FOR ABSORPTION SPECTROPHOTOMETRY OF BIOLOGICAL MATERIALS AT LOW TEMPERATURE.
D003080:Cold Temperature; D003580:Cytochromes; D004864:Equipment and Supplies; D005615:Freezing; D007053:Ice; D009584:Nitrogen; D012106:Research; D013053:Spectrophotometry; D013696:Temperature
D003580:Cytochromes; D007053:Ice; D009584:Nitrogen
CYTOCHROMES; EQUIPMENT AND SUPPLIES; EXPERIMENTAL LAB STUDY; FREEZING; ICE; NITROGEN; SPECTROPHOTOMETRY