Zobrazeno 1 - 10
of 46
pro vyhledávání: '"M. Hostettmann"'
Autor:
Mahabir P. Gupta, Helen Stoeckli-Evans, Matthias Hamburger, P. N. Solis, M. Hostettmann, Kurt Hostettmann
Publikováno v:
ChemInform. 22
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::83cc3f420ddca15cdd7f4560137db633
https://doi.org/10.1002/chin.199103305
https://doi.org/10.1002/chin.199103305
Publikováno v:
Preparative Chromatography Techniques ISBN: 9783642082887
Optically active natural products generally occur in only one enantiomeric form and do not necessitate chiral separations for their isolation. On the other hand, synthetic, semi-synthetic or modified derivatives may require purification to obtain opt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::efad9f86bd090104d15a887a1068a375
https://doi.org/10.1007/978-3-662-03631-0_9
https://doi.org/10.1007/978-3-662-03631-0_9
Publikováno v:
Preparative Chromatography Techniques ISBN: 9783642082887
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d99fd1052b3a5b0277f6cffd284eb1ee
https://doi.org/10.1007/978-3-662-03631-0_7
https://doi.org/10.1007/978-3-662-03631-0_7
Publikováno v:
Preparative Chromatography Techniques ISBN: 9783642082887
A separation problem depends on the number and nature of components in a mixture. Obtaining a pure product from a synthetic reaction, for example, may require the removal of small amounts of a single by-product. In this situation, the problem could p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f82af6058d6f33a0998431df6a8480ef
https://doi.org/10.1007/978-3-662-03631-0_10
https://doi.org/10.1007/978-3-662-03631-0_10
Publikováno v:
Preparative Chromatography Techniques ISBN: 9783642082887
The technique of gas chromatography (GC) is well known as an analytical tool but preparative applications are less common. Small-scale preparative GC is essentially analytical GC with the addition of a sample collection system at the column outlet;
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4b8520d36c5f88f3a102b0cb52ddaf8
https://doi.org/10.1007/978-3-662-03631-0_6
https://doi.org/10.1007/978-3-662-03631-0_6
Seven coumarins were isolated from the aerial parts of Tordylium apulum; their structures were established by spectroscopic means. All compounds were tested in vitro for their cytotoxicity against two cell line systems. The antiproliferative effects
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2127::d0f6ac5ca86cc68779c73b2f6efca961
https://pergamos.lib.uoa.gr/uoa/dl/object/uoadl:3023330
https://pergamos.lib.uoa.gr/uoa/dl/object/uoadl:3023330
A new flavonol diglycoside, quercetin-3-O-[3,4 diacetyl-α-L- rhamnopyranosyl-(1-6)β-D-glucopyranoside] and an antifungal dihydrofuranocoumarin, 2'(S),3'(R)-2'-acetoxyisopropyl-3'-acetoxy-2',3'- dihydroangelicin, together with four other known flavo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::14c533e1a0f491ec8389922bacf53712
https://pergamos.lib.uoa.gr/uoa/dl/object/uoadl:3011322
https://pergamos.lib.uoa.gr/uoa/dl/object/uoadl:3011322
Publikováno v:
Preparative Chromatography Techniques ISBN: 9783642082887
Preparative Chromatography Techniques ISBN: 9783662024942
Preparative Chromatography Techniques ISBN: 9783662024942
Conventional open-column chromatography is universally practised as a result of its simplicity of operation. If silica gel is the support, 30 mg sample loadings per g of 50–200 µm support are feasible (Verzele and Geeraert 1980) but this very high
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc54a81cd021b871202222668c0817b3
https://doi.org/10.1007/978-3-662-03631-0_4
https://doi.org/10.1007/978-3-662-03631-0_4
Publikováno v:
Preparative Chromatography Techniques ISBN: 9783642082887
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28199ffab2ddc29af2249f3331a52908
https://doi.org/10.1007/978-3-662-03631-0_1
https://doi.org/10.1007/978-3-662-03631-0_1
Publikováno v:
Preparative Chromatography Techniques ISBN: 9783642082887
The chromatography of macromolecules (often termed “biochromatography”) involves principally the separation of proteins (and enzymes), peptides, carbohydrates, oligonucleotides and nucleic acids.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca6873063c4af7f4b8ae772df4a275a5
https://doi.org/10.1007/978-3-662-03631-0_8
https://doi.org/10.1007/978-3-662-03631-0_8