Extractive acylation and mass spectrometric assay of 3-methoxytyramine, normetanephrine, and metanephrine in cerebrospinal fluid.

Abstract

The chemical analysis of 3-methoxytyramine, normetanephrine, and metanephrine in tissues, blood, and cerebrospinal fluid is complicated by the low levels in which they occur and the amphoteric nature of the functional groups, which hampers their isolation from aqueous media. In the present report, we describe a practical and simple method for the routine… (More)

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