Zobrazeno 1 - 10
of 137
pro vyhledávání: '"Gerhard Schomburg"'
Publikováno v:
Analytical Chemistry. 69:2786-2792
Capillary isoelectric focusing within capillaries (cIEF) is a powerful and practical method for high-resolution separation of components within complex biological mixtures. However, a major problem has always existed; separation performance is usuall
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::211f1ba02401ea799408c6d59a3fe24a
https://doi.org/10.1021/ac961283+
https://doi.org/10.1021/ac961283+
Publikováno v:
Journal of High Resolution Chromatography. 19:669-673
High resolution could be achieved for the enantiomers of acidic drugs, namely, sulindac, fenoprofen, ketoprofen, warfarin, and hexobarbital, in a buffer of pH 3 by the simultaneous addition of uncharged and charged β-cyclodextrin derivatives. The in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac8656f571705d3e6e5d3de6507dc709
https://doi.org/10.1002/jhrc.1240191203
https://doi.org/10.1002/jhrc.1240191203
Autor:
Gerhard Schomburg
Publikováno v:
Journal of Chromatography A. 703:309-325
The principles and potentials of two or multidimensional gas chromatographic separations (MDGC) of different types of complex mixtures are outlined with regard to analytical application. Except for preparative-scale and certain process control applic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4af39bf84807ae63e90254aa83ba336f
https://doi.org/10.1016/0021-9673(95)00190-x
https://doi.org/10.1016/0021-9673(95)00190-x
Publikováno v:
Analytical Chemistry. 66:2038-2046
Poly(vinyl alcohols) (PVA) of a molecular weight of about 50 000 were applied to the modification of fused silica surfaces for the separation of large charged molecules such as proteins. Basic and acidic proteins could be separated in PVA-modified ca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cc38920c40ecaa6ce22d6bd2be42ec06
https://doi.org/10.1021/ac00085a019
https://doi.org/10.1021/ac00085a019
Autor:
Detlev Belder, Gerhard Schomburg
Publikováno v:
Journal of Chromatography A. 666:351-365
Chiral separations of basic drugs and organic acids can be achieved using cyclodextrins or cyclodextrin derivatives as chiral selectors in surface-modified capillaries. The influence of temperature and selector concentration on separation performance
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b90f2fa626e0d04acab6368ceb63e208
https://doi.org/10.1016/0021-9673(94)80395-1
https://doi.org/10.1016/0021-9673(94)80395-1
Autor:
Gerhard Schomburg, Frank Kobor
Publikováno v:
Journal of High Resolution Chromatography. 16:693-699
The enantioselectivity of three chiral selectors, 6-t-butyldimethyl-silyl-2,3-dimethyl-α-, β- and γ-cyclodextrin (TB-α-CD, TB-β-CD, TB-γ-CD), are compared and discussed for a range of chiral test compounds. TB-β-CD in particular offers high en
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9fac2291d3b7385dc7170d6d07342a67
https://doi.org/10.1002/jhrc.1240161204
https://doi.org/10.1002/jhrc.1240161204
Publikováno v:
Journal of High Resolution Chromatography. 16:587-593
Complex mixtures of partially alkylated cyclodextrins can be analyzed by both HPLC and high temperature capillary GC. Because of the limited efficiency of LC, suitable analytical and preparative separations can be achieved only with systems of carefu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::207bfe71a48587e24b5cbb5ec5cb2d93
https://doi.org/10.1002/jhrc.1240161004
https://doi.org/10.1002/jhrc.1240161004
Publikováno v:
Journal of High Resolution Chromatography. 16:299-311
The results of gas chromatographic enantiomeric separations of selected non-polar and polar test solutes (limonene and 1-phenylethanol) using two different derivatives of β-cyclodextrin, permethyl-β-CD and 2,3-dimethyl-tert-butyldimethylsilyl-β-CD
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f55c753dec443f331c6529cf3ccb735a
https://doi.org/10.1002/jhrc.1240160507
https://doi.org/10.1002/jhrc.1240160507
Publikováno v:
Journal of High Resolution Chromatography. 16:161-165
Trimethylsulfonium hydroxide (TMSH) reproducibly converts fatty acids bound in, e.g., biomolecules such as phospholipids and/or glycerides, into the corresponding fatty acid methyl esters (FAMEs). The transesterification can be performed at room temp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5dcc5676167c368f2c895c2b94977fef
https://doi.org/10.1002/jhrc.1240160306
https://doi.org/10.1002/jhrc.1240160306