Abstract
Summary
The use of blood plasma as a buffer for filter paper electrophoresis makes it possible to study the physico-chemical state of injected materials or of native blood constituents without subjecting the blood fractions to possible alterations by an artificial buffer. In veronal buffer yttrium appeared to exist in wholly immobile forms. In plasma buffer, yttrium existed in an immobile fraction and in an unionized fraction which moved with the solvent. Migration of materials as a result of solvent flow must be considered as a factor in the interpretation of electrophoretic studies of this type.
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