Liquid chromatographic method for the determination of 3,4-dihydroxyphenylethylene glycol and 3,4-dihydroxymandelic acid in plasma
- PMID: 3104378
- DOI: 10.1016/s0021-9673(01)94578-9
Liquid chromatographic method for the determination of 3,4-dihydroxyphenylethylene glycol and 3,4-dihydroxymandelic acid in plasma
Abstract
A method is described for the simultaneous determination of the deaminated catecholamine metabolites 3,4-dihydroxyphenylethylene glycol (DOPEG) and 3,4-dihydroxymandelic acid (DOMA) in plasma by liquid chromatography with amperometric detection. The compounds are extracted from plasma by adsorption on alumina, then separated on a reversed-phase column coated with tributyl phosphate as the stationary liquid phase. It is a simple and selective method that permits the determination of basal levels of DOPEG and DOMA in plasma with a relative standard deviation of 3%.
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