Abstract
AbstractPolyvinyl acetate phthalate‐14C1 (PV AP) was prepared by condensing radioactive phthalic anhydride with polyvinyl alcohol*. The radioactive anhydride was prepared from ethyl anthranilate The chemical purity and the authenticity of the PV AP so prepared was ascertained by a comparison of its acid number and thin layer chromatography to an authentic sample. The specific activity was determined using liquid scintillation counting.
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