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Direct measurement of homovanillic, vanillylmandelic and 5-hydroxyindoleacetic acids in urine by capillary electrophoresis.


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Título : Direct measurement of homovanillic, vanillylmandelic and 5-hydroxyindoleacetic acids in urine by capillary electrophoresis.
Autor : García Fernández, Antonia
Heinänen, Maarit
Jiménez, L. M.
Barbas Arribas, Coral.
Materias: Homovanillic acidVanillylmandelic acidHydroxyindoleacetic acidOrganic acidsCatecholamines
Resumen : Separation conditions in CE, with a neutral coated capillary and reversed polarity, have been optimised to make direct measurement of vanillylmandelic acid, homovanillic acid and 5-hydroxyindoleacetic acid possible in urine samples without pre-treatment. The method developed has been validated, presenting adequate parameters for linearity, accuracy and precision. Detection limits range from 0.03 to 2.5 mM. Finally the method has been applied to urine samples taken from patients, both adults and children, in hospital. Some of them were also measured by immunoassay and HPLC– electrochemical detection and results have been compared.
Descripción : En: Journal of chromatography A. 2000. n. 871 : 341-350 p. 0021-9673
URI : http://hdl.handle.net/10637/1004
Derechos: http://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
Fecha de publicación : 19-sep-2000
Centro : Universidad San Pablo-CEU
Aparece en las colecciones: Facultad de Farmacia





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