Zobrazeno 1 - 9
of 9
pro vyhledávání: '"K. Helen Ekborg-Ott"'
Autor:
Daniel W. Armstrong, Lingfeng He, K. Helen Ekborg-Ott, Charles F. Hammer, Yan Song Liu, Charles L. Barnes
Publikováno v:
Journal of Agricultural and Food Chemistry. 50:473-476
Low levels of synthetic auxins are used as root growth promoters for a wide variety of botanicals. When properly used, they can produce earlier and more prolific root growth. Indole-3-succinic acid (ISA) is a chiral compound that can be synthesized a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9bcbdafd08d3a02c67150baef262fb4b
https://doi.org/10.1021/jf010991f
https://doi.org/10.1021/jf010991f
Autor:
K. Helen Ekborg-Ott, Daniel W. Armstrong, Gina A. Zientara, Kyung H. Gahm, Jeffrey M. Schneiderheinze
Publikováno v:
Electrophoresis. 20:2438-2457
Avoparcin, like vancomycin, teicoplanin, and ristocetin A, belongs to the family of macrocyclic glycopeptide antibiotics. These antibiotics have all been used as effective chiral selectors for capillary electrophoresis (CE), thin-layer chromatography
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4cb62efb1a51f448cc7d91d69b8a41c
https://doi.org/10.1002/(sici)1522-2683(19990801)20:12<2438::aid-elps2438>3.0.co
https://doi.org/10.1002/(sici)1522-2683(19990801)20:12<2438::aid-elps2438>3.0.co
Publikováno v:
Microchemical Journal. 62:26-49
Three different amounts (i.e., selector coverages) of ristocetin A macrocyclic antibiotic have been covalently bonded to silica gel, packed in stainless steel columns, and evaluated as chiral stationary phases (CSPs) in high-performance liquid chroma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::21c3486a1a132259c0bb1f8a4db7c86b
https://doi.org/10.1006/mchj.1999.1730
https://doi.org/10.1006/mchj.1999.1730
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aae23999b39936458c3bc40003e4c904
https://doi.org/10.1002/(sici)1520-636x(1998)10:7<627::aid-chir10>3.0.co
https://doi.org/10.1002/(sici)1520-636x(1998)10:7<627::aid-chir10>3.0.co
Publikováno v:
Chirality. 10:434-483
The macrocyclic glycopeptide, ristocetin A, was covalently bonded to a silica gel support and evaluated as a liquid chromatographic (LC) chiral stationary phase (CSP). Over 230 racemates were resolved in either the reversed-phase mode, the normal-pha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2c53b4b88f1ee0533f3490a14385c20
https://doi.org/10.1002/(sici)1520-636x(1998)10:5<434::aid-chir10>3.0.co
https://doi.org/10.1002/(sici)1520-636x(1998)10:5<434::aid-chir10>3.0.co
Publikováno v:
Journal of Agricultural and Food Chemistry. 45:353-363
Theanine is the main amino acid component in tea. It usually constitutes between 1 and 2% of the dry weight of the tea leaves. It is as prevalent in tea as all other free amino acids combined. Both enantiomers of theanine were found to have a similar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f37c6c2ab5b89fdfa7589b07f45484d3
https://doi.org/10.1021/jf960432m
https://doi.org/10.1021/jf960432m
Publikováno v:
Chirality. 8:49-57
Even though amino acids are important trace components in the brewing of beers, they have not been extensively evaluated in these beverages. Studies involving the enantiomeric composition of these amino acids are even less prevalent. A brief summary
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a3bc8a50fae69c34af1df26acd44d6c
https://doi.org/10.1002/(sici)1520-636x(1996)8:1<49::aid-chir10>3.0.co
https://doi.org/10.1002/(sici)1520-636x(1996)8:1<49::aid-chir10>3.0.co
Publikováno v:
Chirality. 7:474-497
A macrocyclic glycopeptide antibiotic containing a hydrophobic “tail” is covalently attached to silica gel via linkage chains. This material is extensively evaluated as a chiral stationary phase (CSP) for HPLC. The relevant structural features of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2611935740e0410c2396d46d1dcf9dbb
https://doi.org/10.1002/chir.530070614
https://doi.org/10.1002/chir.530070614
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