[Determination of nicotinic acid in small quantities of the blood with the aid of a quartz spectrophotometer SF-4].
D004864:Equipment and Supplies; D006801:Humans; D009525:Niacin / Q000097:blood*; D009539:Nicotinic Acids; D011791:Quartz; D013053:Spectrophotometry / Q000600:supply & distribution*
D009539:Nicotinic Acids; D011791:Quartz; D009525:Niacin
NICOTINIC ACID/blood; SPECTROPHOTOMETRY/equipment and supplies