Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Friedhelm Eisenbeiss"'
Autor:
Friedhelm Eisenbeiß, Günther Weber, Dirk Siepe, Roland Hergenröder, Benedikt Gras, Andreas Neyer, Matthias Jöhnck
Publikováno v:
Sensors and Actuators B: Chemical. 72:249-258
This report describes the design, fabrication and use of new microanalytical devices based on polymer substrates for electrophoretic methods, especially isotachophoresis. The devices are fabricated by hot embossing and are sealed with a thin plexigla
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8cdc752a3b06f3520ec317452ccfe782
https://doi.org/10.1016/s0925-4005(00)00643-2
https://doi.org/10.1016/s0925-4005(00)00643-2
Autor:
Bernd Stanislawski, Benedikt Grass, Marián Masár, František Iványi, Matthias Jöhnck, Friedhelm Eisenbeiss, and Andreas Neyer, Jana Bielcikova, Dušan Kaniansky
Publikováno v:
Scopus-Elsevier
Some basic aspects of capillary electrophoresis (CE) separations on a poly(methyl methacrylate) chip provided with two separation channels in the column-coupling (CC) configuration and on-column conductivity detectors were studied. The CE methods emp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed51038163597a4d1d4fa50dda34df56
https://doi.org/10.1021/ac991236s
https://doi.org/10.1021/ac991236s
Autor:
Gernot Bruchelt, Susanne Renner, Dietrich Niethammer, Friedhelm Eisenbeiss, Thomas Klingebiel, Thomas Meissner
Publikováno v:
Journal of Chromatography A. 838:251-257
Amifostine [WR-2721; H2N-(CH2)3-NH-(CH2)2-S-PO3H2] is used as a protecting agent in the chemotherapy of neuroblastoma. It is supposed that Amifostine will be transformed into its active form, the free thiol (WR-1065), easier by normal cells than by t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac540ecd309533ebe80d3d7fcf9e9ffa
https://doi.org/10.1016/s0021-9673(99)00084-9
https://doi.org/10.1016/s0021-9673(99)00084-9
Autor:
H. A. M. Verhulst, Henk A. Claessens, Friedhelm Eisenbeiss, J.W. de Haan, C.A.M.G. Cramers, L.J.M. van de Ven
Publikováno v:
Journal of Chromatography A. 687:213-221
The distribution of silane chains over the silica gel surface in reversed-phase high-performance liquid Chromatographic (RP-HPLC) phases was investigated with special attention being paid to surface homogeneity: there might be areas with high coverag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d09d0e8caedc8551993494a19387899a
https://doi.org/10.1016/0021-9673(94)00808-6
https://doi.org/10.1016/0021-9673(94)00808-6
Unusual peak distortion in ligand-exchange chromatography of enantiomers under overloaded conditions
Publikováno v:
Journal of Chromatography A. 666:99-110
The separation of amino acid enantiomers by means of ligand-exchange chromatography on an adsorbed chiral stationary phase was investigated under overloaded conditions. The selectivity of separation, the limit of mass loading and the peak shapes of e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c5e0315cc065ba49a88151e34009ef8a
https://doi.org/10.1016/0021-9673(94)80373-0
https://doi.org/10.1016/0021-9673(94)80373-0
Publikováno v:
Journal of Chromatography A. 663:163-174
Polyvinylpyrrolidone (PVP)-coated silica sorbents were synthesized by interaction of a copolymer of vinyl-methyldiethoxysilane and vinylpyrrolidone with LiChrospher Si 300 and LiChrospher Si 500 silicas. The coating procedure retains the wide-pore st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f78cb0d85d8cf3111b6024dd0d0a8286
https://doi.org/10.1016/0021-9673(94)85242-1
https://doi.org/10.1016/0021-9673(94)85242-1
Publikováno v:
Journal of Chromatography A. 660:97-111
Polymer coatings on porous silica, alumina and zirconia were prepared by covalent bonding of a copolymer of styrene and vinylsilane on the oxidic surface with or without subsequent cross-linking of the immobilized polymeric layer. Polybutadiene and p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::abe4e26dd9a7982362b125ef5dc3d120
https://doi.org/10.1016/0021-9673(94)85103-4
https://doi.org/10.1016/0021-9673(94)85103-4
Autor:
Friedhelm Eisenbeiss, J.F.K. Huber
Publikováno v:
Journal of Chromatography A. 149:127-141
Summary In the optimization of a chromatographic separation with respect to resolution, speed and dilution, the capacity factor is an important parameter. Its influence on the chromatographic characteristics is discussed theoretically. The capacity f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ead819393c7080442774e86558206af1
https://doi.org/10.1016/s0021-9673(00)80982-6
https://doi.org/10.1016/s0021-9673(00)80982-6
Publikováno v:
Journal of Chromatography B: Biomedical Sciences and Applications. 145:29-39
Using a Lichrosorb RP-8 reversed-phase column and a methanol—water gradient elution program, it is possible to separate within 40 min and to determine routinely in picomole quantities the natural di- and polyamines. The precision of the method is c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2b571436b4df4c9480069e52ee2fa1c0
https://doi.org/10.1016/s0378-4347(00)81665-5
https://doi.org/10.1016/s0378-4347(00)81665-5
Autor:
J.N. Kinkel, Udo Kotschi, Hartmut Seligner, Caroline Scharpf, Friedhelm Eisenbeiss, Klaus K. Unger, Rainer Martin
Publikováno v:
Journal of Chromatography A. 476:49-57
Non-porous silica gel microbeads of diameter 1.5 microns have been investigated as supports for oligonucleotide synthesis. In the preparation of oligothymidylates of chain length up to 150 bases, with 5'-di-p-anisylphenylmethyl-3'-phosphoramidite as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::217d58e1b32160db340274dc9de1032c
https://doi.org/10.1016/s0021-9673(01)93855-5
https://doi.org/10.1016/s0021-9673(01)93855-5