The refractometric determination of the total protein concentration in some animal plasmas

Abstract

Extract

Refractometry has been used for serum or plasma total, protein determination since the beginning of this century and while at times the value and accuracy of the technique has been open to question (see Lines and Raine, 1970a,b), many studies have shown close agreement between refractometric determination of serum total protein and estimation by such techniques as the Biuret method and the Kjeldahl nitrogen determination (Lines and Raine, 1970b; Barry et al., 1960; Drickman and McKeon, 1962).