Publication | Open Access
Fluorometric Determination of Urinary Metanephrine and Normetanephrine
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1964
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Detailed ProcedureChemistryChemical ContaminantRenal FunctionGas ChromatographyDrug PurityEnvironmental Analytical ChemistryBioanalysisParathyroid HormoneAnalytical ChemistryToxicologyClinical ChemistryChromatographyFluorometric DeterminationChemical MeasurementBiochemistryAlumina ColumnPharmacologyUrologyNatural SciencesForensic ToxicologyMass SpectrometryEnvironmental ToxicologyDifferential FluorometryMedicineDrug Analysis
Abstract A detailed procedure for the quantitative determination of metanephrine and normetanephrine is given. Epinephrine and norepinephrine are eliminated by selective adsorption on an alumina column. Metanephrine and normetanephrine are isolated with a cation-exchange resin. Fluorescence is developed by a two-step ferricyanide oxidation at two different pH values followed by tautomerization. The concentrations of both metanephrine and normetanephrine are quantitated by differential fluorometry.