Nomogram for calculation of concentration for colorimetric systems in  which absorbance decreases linearly as concentration increases.
D001322:Autoanalysis; D002624:Chemistry, Clinical; D003124:Colorimetry; D005292:Ferricyanides; D005947:Glucose / Q000032:analysis*; D006801:Humans; D008433:Mathematics; D008722:Methods
D005292:Ferricyanides; D005947:Glucose