Výsledky vyhledávání

Combined thin-layer chromatography/mass spectrometry without substance elution: Use for direct identification of amino acids as dansylated esters

Autor: Albrecht Otto, G. Etzold, Regine Kraft, Hans‐Jürgen Zöpfl

Publikováno v: Biological Mass Spectrometry. 14:1-4

Amino acids can be identified unambiguously in form of their dansylated methyl esters by combination of thin-layer chromatography on polyamide and subsequent mass spectrometry without prior substance elution from the chromatographic polyamide carrier

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c1782611a6abf64050ade939cf14ca59
https://doi.org/10.1002/bms.1200140103

Zobrazit plný text záznamu

Combined thin-layer chromatography/mass spectrometry without substance elution

Autor: Regine Kraft, Albrecht Otto, Alexander Makower, G. Etzold

Publikováno v: Analytical Biochemistry. 113:193-196

Compounds separated on polyamide thin-layers and located in an appropriate manner can be introduced directly into the ion source of the mass spectrometer together with the chromatographic polyamide adsorbent. In spite of the large excess of polyamide

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::48239e3289319847074ef9acfaac8587
https://doi.org/10.1016/0003-2697(81)90065-8

Zobrazit plný text záznamu

Anwendung der Massenspektrometrie zur Identifizierung isomerer Amino-oxadiazole

Autor: Regine Kraft, H.-J. Zöpfl, G. Etzold, Günter Westphal, R. Schmidt, Peter Henklein

Publikováno v: Organic Mass Spectrometry. 11:304-308

Die massenspektrometrischen Zerfallsprodukte der vier isomeren phenyl-substituierten Amino-oxadiazole, 2-Amino-5-phenyl-l.3.4-oxadiazol, 3-Amino-5-phenyl-l.2.4-oxadiazol, 5-Amino-3-phenyl-l.2.4-oxadiazol und 3-Amino-4-phenyl-l.2.5.oxadiazol, untersch

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::82d43a521dabe45ad95ec2fc509c1324
https://doi.org/10.1002/oms.1210110310

Zobrazit plný text záznamu

A conformational study of poly-l-lysine, metmyoglobin, cytochrome c, methaemoglobin and glycogen phosphorylase b adsorbed at mercury electrode

Autor: H. Will, F. Scheller, M. Jänchen, G. Etzold

Publikováno v: Bioelectrochemistry and Bioenergetics. 1:478-486

The surface areas S per particle at the Hg electrode were determined from the adsorption kinetics for metmyoglobin, cytochrome c , methaemoglobin and glycogen phosphorylase b , the α-helical, the coiled form and the β-structure of poly- l -lysine.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::47cbd5524b02822a84a470817d97c741
https://doi.org/10.1016/0302-4598(74)80021-8

Zobrazit plný text záznamu

Nucleoside von Fluorzuckern, XV. Synthese von Thymin-Nucleosiden der 6-Fluor-D-glucopyranose und 6-Fluor-D-galaktopyranose

Autor: P. Langen, G. Etzold, M. Von Janta-Lipinski

Publikováno v: Journal f�r Praktische Chemie. 318:79-86

1-β-D-Glucopyranosyl-thymin 1 und 1-β-D-Galaktopyranosyl-thymin 13 ergeben mit aquimolaren Tosyl-oder Mesylchlorid bevorzugt die entsprechenden 6′-O-Sulfonyl-Nucleoside 6 und 7 bzw. 14 und 15. In geringer Menge entstehen die 2′,6′-Di-O-sulfon

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::552333c41589431482102c6beca72f16
https://doi.org/10.1002/prac.19763180109

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání