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Main.NEPHROLOGY.Diagnostics.Physiological Function Measurement.RadioActivity Method..Iodine RadioActivity Method.Patent.Literature.Claim 1: Renal Function Study.Method: Adm. to an Animal Pharma.Compn. Comprising as Active.Ingredient: RadioIodinated Compound.I*: .sup.123 I; 131 I or 125 I..& Carrier with < 15% UnBound Iodine.Collecting Urine from the Animal.& Determn. RadioActivity in Urine.Claim 3: Active Ingredient Is:.Na 3-Iodo-4-HydroxyBenzeneSulfonate.Claim 4: term I* is .sup.125 I..Claim 5: Carrier: Buffer ed Water.Claim 6: Buffer: HEPES, pH = 6-8.Claim 7: Radiolytic Protectant.Claim 9: Radiolytic Protectant Is:.Sodium Salt of Ascorbic Acid.Claim 11: UnBound Iondine < 15%.Claim 12: Delivery Method:.IntraVenous Injection..Patent Assignee |