Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Alan P. Sweeney"'
Autor:
Alan P. Sweeney, Heather J. Catchpoole, R. Andrew Shalliker, Kirsty J. Mayfield, Victor Wong, Georges Guiochon
Publikováno v:
Journal of Chromatography A. 1080:124-131
Viscous fingering is a flow instability phenomenon that results in the destabilisation of the interface between two fluids of differing viscosities. The destabilised interface results in a complex mixing of the two fluids in a pattern that resembles
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f8e2fcb287897e542f507271b09e60b1
https://doi.org/10.1016/j.chroma.2005.04.093
https://doi.org/10.1016/j.chroma.2005.04.093
Publikováno v:
Journal of Liquid Chromatography & Related Technologies. 27:2905-2920
The separation of diastereoisomers of polystyrene has been investigated on carbon‐clad zirconia (CCZ), C18, and diamond C18 stationary phases using eluents of widely different properties. Eluents were chosen according to their selectivity, solvent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78482b8ff5130c70506033236ec31532
https://doi.org/10.1081/jlc-200030835
https://doi.org/10.1081/jlc-200030835
Autor:
Alan P. Sweeney, R. Andrew Shalliker
Publikováno v:
Journal of Chromatography A. 968:41-52
A two-dimensional HPLC system was developed where “heart-cutting” chromatography, in conjunction with cold temperature trapping, was used to isolate and concentrate specific sample analytes. Low molecular mass polystyrene oligomers were used as m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::083a6eb8ff7350cb7af0b07330253fb7
https://doi.org/10.1016/s0021-9673(02)00782-3
https://doi.org/10.1016/s0021-9673(02)00782-3
Publikováno v:
Journal of Liquid Chromatography & Related Technologies. 25:363-379
The general aim of this work was to illustrate the exceptional resolving power of carbon clad zirconia surfaces for the separation of diastereoisomers of low molecular weight polystyrenes. Separations are reported in which four diastereoisomers of n-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9d8aff0bfcc6bde6d2c7ffde074bdcf
https://doi.org/10.1081/jlc-120008752
https://doi.org/10.1081/jlc-120008752
Publikováno v:
Journal of Liquid Chromatography & Related Technologies. 25:561-572
Impregnation of sodium iodide into the matrix of zirconia-silica composite stationary phases during calcination was shown to improve the band profiles of basic compounds analysed using these surfaces. These compounds (pyridine and aniline) displayed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ca24b54b0c986e2bba4a429bee7aa96
https://doi.org/10.1081/jlc-120008811
https://doi.org/10.1081/jlc-120008811
Publikováno v:
Macromolecular Chemistry and Physics. 203:375-380
The separation of isomers of polystyrene oligomers was demonstrated on a carbon-clad zirconia stationary phase in an acetonitrile mobile phase. The carbonclad zirconia surface gave considerably better resolution of isomers than a C18 surface, and the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::233488d54b758104abcce8cec0ef10cf
https://doi.org/10.1002/1521-3935(20020101)203:2<375::aid-macp375>3.0.co
https://doi.org/10.1002/1521-3935(20020101)203:2<375::aid-macp375>3.0.co
Publikováno v:
Journal of Liquid Chromatography & Related Technologies. 24:2559-2581
The two dimensional separation of low molecular weight polystyrene oligomers and stereoisomers was achieved using a liquid chromatographic system designed for ‘heart-cutting’ multidimensional chromatography. The first separation process incorpora
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9fb133afcbd5d4bc0bdb1e5646f02b64
https://doi.org/10.1081/jlc-100106086
https://doi.org/10.1081/jlc-100106086
Publikováno v:
Chromatographia. 54:24-30
The separation of diastereoisomers from oligomers of low molecular weight polystyrene was achieved using a carbon clad zirconia stationary phase and an acetonitrile mobile phase. The selectivity of the C18-methanol system separated the polystyrene ol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41316235e394fd833fac707634e79c97
https://doi.org/10.1007/bf02491828
https://doi.org/10.1007/bf02491828
Publikováno v:
Journal of separation science. 27(1-2)
Multidimensional reversed-phase HPLC was employed to isolate the active constituents from a crude extract of Clerodendrum floribundum R. Br. These active constituents were known to have bioactivity against the enzyme xanthine oxidase and potentially
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a150a253f98edc2a7dd27dc195753ab7
https://pubmed.ncbi.nlm.nih.gov/15335057
https://pubmed.ncbi.nlm.nih.gov/15335057
Publikováno v:
Journal of ethnopharmacology. 75(2-3)
Twenty-eight extracts from 17 species of Australian native plants traditionally used as general anti-inflammatory medicines by Australian Aboriginal people were examined for inhibition of the enzyme xanthine oxidase (XO). The extracts from nine speci
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb0f4dbcf59c8f421977adc57109b3fd
https://pubmed.ncbi.nlm.nih.gov/11297862
https://pubmed.ncbi.nlm.nih.gov/11297862