Krogh, M Solid-phase microextraction for the determination of the free concentration of valproic acid in human plasma by capillary gas chromatography. [electronic resource] - Journal of chromatography. B, Biomedical applications Nov 1995 - 299-305 p. digital Publication Type: Journal Article ISSN: 1572-6495 Standard No.: 10.1016/0378-4347(95)00273-8 doi Subjects--Topical Terms: Chromatography--methodsDialysisHumansHydrogen-Ion ConcentrationMicrochemistryReproducibility of ResultsValproic Acid--blood