Hemoglobin critical values

Tire evaluation of Mr is often of critical importance. Minimum values of Mr can often be computed from the content of a minor constituent, e.g., the tryptophan of a protein or the iron of hemoglobin. However, physicochemical techniques provide the basis for most measurements.177 Observations of osmotic pressure or light scattering can also be used and provide determinations of Mr that are simple in principle, but which have pitfalls.178... 

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