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Separation of the catecholamine metabolites 4-hydroxy-3-methoxy- and 3-hydroxy-4-methoxymandelic acid by
Journal of Chromatographic Science
|January 1, 1985
Abstract:
The catecholamine metabolites 4-hydroxy-3-methoxy- and 3-hydroxy-4-methoxymandelic acid can be completely separated by reversed-phase high performance liquid chromatography with chemically bonded octadecylsilane as stationary phase and a citrate/ammonium phosphate buffer (pH 4.5) containing 8% methanol as mobile phase. The two isomers can be electrochemically detected and produce different hydrodynamic voltammograms.