Zobrazeno 1 - 8
of 8
pro vyhledávání: '"John P. Kullman"'
Publikováno v:
Chirality. 13:153-158
Initial results from the analyses of geological and anthropological samples for amino acids were difficult to accept because of the high enantiomeric purities of the analytes (i.e., predominantly L-amino acids). Consequently, sources of contamination
Publikováno v:
FEMS Microbiology Letters. 194:33-37
Recent advances in high efficiency separation methods of bacteria allow their rapid identification and quantitation in some cases. A specific capillary electrophoresis (CE) technique is used to identify and quantitate Lactobacillus acidophilus in bot
Autor:
John P. Kullman, Francesco Gasparrini, Daniel W. Armstrong, Domenico Misiti, Timothy Yu, Angelo Carotti, Ilaria D'Acquarica, Alain Berthod
Publikováno v:
Journal of Chromatography A. 897:113-129
A new macrocyclic antibiotic of the vancomycin family, referred to by its industrial designation as A-40,926, was bonded to 5 microm silica particles and utilised as a chiral stationary phase (CSP). Since A-40,926 is structurally related to teicoplan
Publikováno v:
Journal of Liquid Chromatography & Related Technologies. 23:1941-1952
Many chiral thiols such as cysteine, homocysteine, N-acetylcysteine (NAC), and penicillamine are biologically important compounds. Among other roles, they act as antioxidants, therapeutic agents and indicators of disease. When analyzing low levels of
Publikováno v:
Chirality. 11:669-673
Despite the fact that several studies have reported the concentrations of various free amino acids in tobacco, their enantiomeric composition is unknown. Both the absolute and enantiomeric compositions of proline, alanine, asparagine, aspartic acid,
Publikováno v:
Talanta. 47:1001-1012
A series of six oligosaccharides: linear arabinosides, cellosides, isomaltosides, mannosides, maltosides and xylosides containing up to 15 sugar units, as well as alpha, beta and gamma-cyclodextrins, were separated without derivatization with acetoni
Autor:
Kyung H. Gahm, Lingfeng He, John P. Kullman, Daniel W. Armstrong, K. Helen Ekborg-Ott, Xiande Wang
Publikováno v:
Chirality. 10:627-660
Avoparcin is a macrocyclic glycopeptide antibiotic structurally related to vancomycin, teicoplanin, and ristocetin A. When attached to 5-μm spherical silica gel, the avoparcin proved to be an effective chiral stationary phase (CSP) that could be use
Autor:
Daniel W. Armstrong, Francesco Gasparrini, Claudio Villani, Ilaria D'Acquarica, Xianghong Chen, Angelo Carotti, John P. Kullman, Alain Berthod
For this study, we used the macrocyclic antibiotic teicoplanin, a molecule consisting of an aglycone peptide "basket" with three attached carbohydrate (sugar) moieties. The sugar units were removed and the aglycone was purified. Two chiral stationary
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::228ec4dc4a7104848933259b7c550f39
http://hdl.handle.net/11573/252361
http://hdl.handle.net/11573/252361