Liquid-chromatographic method for determination of homovanillic acid in plasma, with electrochemical detection

Zumárraga, M.; Andia, I.; Bárcena, B.; Zamalloa, M.I.; Dávilla, R.

Clinical Chemistry 33(1): 72-75

1987


ISSN/ISBN: 0009-9147
PMID: 3802499
Document Number: 302792
We describe a sensitive, simple method for measuring homovanillic acid in human plasma. The method is based on liquid chromatography with electrochemical detection. Sensitivity was 125 pg of homovanillic acid per injection. Samples were deproteinized and extracted with organic solvent before chromatography. Quantification was by the standard-additions technique. Analytical recovery of added HVA was 44.8 (SD 6.2%). We confirmed specificity by using serial amperometric detectors.

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