A simplified colorimetric micromethod for determination of serum cholesterol

Abstract
A simple and rapid micromethod is described for quantitation of cholesterol in 5–10 μl of serum using uranyl acetate to deproteinize the serum ando-phthalaldehyde reagent to develop color. Independent analyses of serum samples by the present method and by two reference methods, Abell-Kendall and automated colorimetric method, indicated accuracy of the micromethod (r=0.99). Use of capillary blood specimens makes this procedure applicable for screening infants and small children.