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dc.date.accessioned2013-06-17T14:39:21Z
dc.date.available2013-06-17T14:39:21Z
dc.date.issued1981
dc.identifier.citationlanta Med 1981; 43(10): 179-182 DOI: 10.1055/s-2007-971496en
dc.identifier.urihttps://www.thieme-connect.com/ejournals/abstract/10.1055/s-2007-971496
dc.identifier.urihttp://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/35085
dc.description.abstractValepotriates, mainly isovaltrate and valtrate, have been separated and quantitatively estimated by reversed-phase HPLC in the leaves, flowers, stems and rhizomes of Valeriana kilimandascharica. The isovaltrate/valtrate concentration reaches a maximum of 5.89% in the leaves, 3.84% in the flowers, 3.17% in the stems and 5.15% in the rhizomes. A µ Bondapak C18 column using MeOH-H2O mixtures as eluant is suitable for a baseline separation of isovaltrate, valtrate, acevaltrate and baldrinal at UV 254 nm in 15 min and didrovaltrate and IVHD-valtrat at UV 208 nm in 10 min. Relative standard deviation for quantitative determinations is approximately 1.5% for valepotriate contents of 1%. This method is adaptable for routine analysis of crude extracts.en
dc.language.isoenen
dc.subjectValerianaen
dc.subjectValerianaceaeen
dc.subjectValepotriatesen
dc.subjectHPLCen
dc.titleHPCL Separation and Quantitative Determination of Valepotriates from Valeriana kilimandascharicaen
dc.typeArticleen
local.publisherDepartment of botany, University of Nairobien


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