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  • Title: [Comparison of two methods for measuring human serum immunoglobulins (laser-nephelometry and radial immunodiffusion)].
    Author: Di Martino G, Iannucci F, Orlandella B, Molero U.
    Journal: Boll Soc Ital Biol Sper; 1981 Jan 15; 57(1):125-9. PubMed ID: 6788050.
    Abstract:
    The AA. have tested 50 serum samples for immunoglobulins (IgG, IgA, IgM) with two different methods: laser-nephelometry (LN) and radial immunodiffusion (RID). Mean values of IgG and IgA are almost the same in the two tested methods and there is a good correlation between LN and RID (IgG: r = 0,98; IgA: = 0,96). Also IgM have showed a good correlation (r = 0,987) but mean values obtained with LN are just a few lower than those obtained with RID. Regression lines, calculated for all the Ig, confirm these conclusions. The AA. conclude affirming that the obtained difference for IgM is due to the different standards used for LN and RID determinations.
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