analüütiline määramismeetod, kus analüüs viiakse läbi polümeeririkkas faasis valgushajumise põhjal, the process in which a precipitant is added incrementally to a highly dilute polymer solution and the intensity of light scattered by, or the turbidity due to, the finely dispersed particles of the  polymer-rich phase  is measured as a function of the amount of precipitant added