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 Wysłany: Pon 2:09, 06 Gru 2010 Temat postu: stivali ugg D-and L-carnitine enantiomer Capillary |
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D-and L-carnitine enantiomer Capillary Electrophoresis
ium-ChainAcylcarnitines, andTotalCarnitineinPlas-mabyHPLC [JJ. AnalBiochem, 1993,212:510. HirotaT, MinatoK,[link widoczny dla zalogowanych], IshiiK, eta1. HPLCdeterminationoftheenantiomersofcarnitineandacetylcarnltineonachiralstationaryphase [Jj. JChromatogrA, 1994,673:37. GalanA, PadrosA,. MmnbarriM, eta1. AutomationofaspectrophotometricmethodformeasuringL-earnitineinhumanbloodsemmlJ] JAutomaticChem, 1998,[link widoczny dla zalogowanych],20:23. MardonesC, RiosA, ValcarcelM. Enantiomericseparationof-and-camifinebyintegratingon-linederivatizatlonwithcapzoneelectzophoresis [J]. JChromatngrA, 1999,849:609. D. And L. Carnitine enantiomers by capillary electrophoresis Separation of cold peach, Guowei Jiang, Ren Yiping (1. Department of Chemistry, Zhejiang University, Hangzhou 310028, China; 2. Center for Disease Control and Prevention in Zhejiang Province, Hangzhou 310009, China) Abstract: The use of capillary zone electrophoretic separation and detection method of carnitine enantiomers. Racemic carnitine with 4. Bromine derivatives of benzoyl bromide, and by the selective chiral reagent - sulfonated B. Cyclodextrin and chiral crown ether [(S, s) a 1,[link widoczny dla zalogowanych],7-bis (4 a-phenyl-5. Hydroxyl oxygen of a 3 2 N-benzyl) one or two aza-12 1,7 . Crown. 4], after synergies, get good separation, and UV detector, the detection limit of the two isomers of about 80ng/mL. Keywords: Derivatization; enantioseparation; capillary electrophoresis; carnitine (Continued from page 86) SimultaneousdetectionofsevensexhormoneincosmeticessencebyHPLCHUANGBai-fen ', LIXiao-ping2, RENYi-pingI, SHENXiang ・ hongI (1.ZhejiangCenterforDiseasePreventionandControl, Hangzhou310009, China; 2. ZhejiangShurenUniversity. Hangzhou310003, China) Abstract: AnessentialmethodissetupforSimultaneouslydetectingsevensexhormoneincosmeticessencebyHPLC. Afterdegreased, extracted, washedandcondensed,[link widoczny dla zalogowanych], sampleisseparatedandidentifiedinODSC18column, mobilephase (acetonitrile-watersolution, gradientelution), andtandemdetectorsofdiodearraydetectorandfluorescencedetector). Thelinearrangeis5 ~ 150ttg/mL, therecoveryisabovethan83%. Theminimumdetectinglimitisgg / g,[link widoczny dla zalogowanych], CViSlesSthan3.4%. Keywords: HPLC; cosmetic; sexhormone, a _J-J1] J] O1
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