Abstract
Iron in serum or plasma is determined by replacement of metal-containing globulin. 2,2''-Dipyridyl (0.075%) and hydroxylamine HCl (0.1%) in 0.5 [image] acetate soln. is the reagent. The pink color is measured spectrophotometrically. Normal values and comparisons with earlier methods show the results to be higher than those now generally accepted.