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dc.contributor.authorTsioupi, Despina A.en
dc.contributor.authorNicolaou, I. N.en
dc.contributor.authorMoore, L.en
dc.contributor.authorKapnissi‐Christodoulou, Constantina P.en
dc.creatorTsioupi, Despina A.en
dc.creatorNicolaou, I. N.en
dc.creatorMoore, L.en
dc.creatorKapnissi‐Christodoulou, Constantina P.en
dc.date.accessioned2019-11-21T06:23:24Z
dc.date.available2019-11-21T06:23:24Z
dc.date.issued2012
dc.identifier.urihttp://gnosis.library.ucy.ac.cy/handle/7/56258
dc.description.abstractThe aim of this work is the development, validation and application of an MEKC method for the chiral separation of Huperzine A. Huperzine A is an important compound that is used to treat Alzheimer's disease. However, only the (-)-form of this compound is biologically active and behaves as a potential acetylcholinesterase inhibitor. Therefore, the separation of the (-)-form from the (+)-form is of greatest importance. Optimal conditions, regarding resolution and analysis time, were established by altering several experimental parameters, such as temperature, field strength, pH, type and concentration of BGE and chiral selector. A major problem that had to be solved in this study was the low intensity and efficiency of the peaks. More parameters were examined, such as the addition of modifiers, to optimize further the separation, and particularly the efficiency. Baseline enantioseparation was achieved by using a BGE of 50mM acetate (pH 5.0), supplemented with 0.2% w/v poly(sodium N-undecanoyl-ll-alanyl-valinate) and 10% v/v tert-butanol. Finally, the optimum conditions were applied to a pharmaceutical formulation, to demonstrate the ability of the method to control the purity of the (-)-Huperzine A in pharmaceutical formulations. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.en
dc.sourceElectrophoresisen
dc.source.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84856386414&doi=10.1002%2felps.201100372&partnerID=40&md5=67aac80e0c9cd932b052e4667ed05641
dc.subjectarticleen
dc.subjectReproducibility of Resultsen
dc.subjectunclassified drugen
dc.subjectSurface-Active Agentsen
dc.subjectsurfactanten
dc.subjectvalidation processen
dc.subjectreproducibilityen
dc.subjecttablet formulationen
dc.subjectdrug purityen
dc.subjectchemical structureen
dc.subjectanalytic methoden
dc.subjecttemperatureen
dc.subjectconcentration (parameters)en
dc.subjectpHen
dc.subjectHydrogen-Ion Concentrationen
dc.subjectprocess optimizationen
dc.subjectlimit of quantitationen
dc.subjectSesquiterpenesen
dc.subjectStereoisomerismen
dc.subjectacetic aciden
dc.subjectseparation techniqueen
dc.subjectlimit of detectionen
dc.subjectAlkaloidsen
dc.subjectElectrophoresis, Capillaryen
dc.subjectmicellar electrokinetic chromatographyen
dc.subjectChromatography, Micellar Electrokinetic Capillaryen
dc.subjectPharmaceutical formulationen
dc.subjectHuperzine Aen
dc.subjectAcetylcholinesterase inhibitoren
dc.subjectchiral selectoren
dc.subjectchiral separationen
dc.subjectEnantioseparationen
dc.subjectparametersen
dc.subjectpoly(sodium n undecanoyl leucineleucine alanyl valinate)en
dc.subjectPolymeric surfactantsen
dc.subjectSodium Acetateen
dc.subjectTechnology, Pharmaceuticalen
dc.subjecttert butyl alcoholen
dc.titleChiral separation of Huperzine A using CE - Method validation and application in pharmaceutical formulationsen
dc.typeinfo:eu-repo/semantics/article
dc.identifier.doi10.1002/elps.201100372
dc.description.volume33
dc.description.issue3
dc.description.startingpage516
dc.description.endingpage522
dc.author.faculty002 Σχολή Θετικών και Εφαρμοσμένων Επιστημών / Faculty of Pure and Applied Sciences
dc.author.departmentΤμήμα Χημείας / Department of Chemistry
dc.type.uhtypeArticleen
dc.description.notes<p>Cited By :8</p>en
dc.source.abbreviationElectrophoresisen
dc.contributor.orcidKapnissi‐Christodoulou, Constantina P. [0000-0003-3755-1052]
dc.gnosis.orcid0000-0003-3755-1052


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