Zobrazeno 1 - 10
of 14
pro vyhledávání: '"William E. Barber"'
Publikováno v:
Journal of Chromatography A. 1440:55-65
In recent years, superficially porous particles (SPPs) have drawn great interest because of their special particle characteristics and improvement in separation efficiency. Superficially porous particles are currently manufactured by adding silica na
Publikováno v:
Journal of Chromatography A. 1414:147-157
Superficially porous particles (SPPs) with pore size ranging from 90 A to 120 A have been a great success for the fast separation of small molecules over totally porous particles in recent years. However, for the separation of large biomolecules such
Publikováno v:
Journal of Chromatography A. 1328:7-15
The kinetic performance of a bare silica and C18 phase prepared from the same sub-2μm and 3.5μm base materials were compared in the HILIC and RP mode using both charged and neutral solutes. The HILIC column was characterised using the neutral solut
Publikováno v:
Journal of Chromatography A. 1228:72-88
The new generation of superficially porous particles (SPPs) offers impressive chromatographic efficiency compared to totally porous particles. Specifically, modern sub-3-μm SPPs generate much improved reduced plate height but at lower backpressure c
Autor:
Zachary S. Breitbach, Gustavo Amadeu Micke, Maressa D. Dolzan, Daniel A. Spudeit, Daniel W. Armstrong, William E. Barber
Publikováno v:
Journal of chromatography. A. 1365
A new HILIC stationary phase comprised of native cyclofructan-6 (CF6) bonded to superficially porous silica particles (2.7μm) was developed. Its performance was evaluated and compared to fully porous silica particles with 5μm (commercially availabl
Autor:
Gustavo Amadeu Micke, Daniel W. Armstrong, Daniel A. Spudeit, William E. Barber, Maressa D. Dolzan, Zachary S. Breitbach
Publikováno v:
Journal of chromatography. A. 1363
This work reports a comparison of HPLC separations of enantiomers with chiral stationary phases (CSPs) prepared by chemically bonding cyclofructan-6, functionalized with isopropyl carbamate groups on fully and superficially porous particles (SPPs). T
Publikováno v:
Journal of chromatography. A. 1107(1-2)
Maximization of peak capacity is a very important step in developing one-dimensional separations of complex samples. In recent work, it was shown that the use of small particles in combination with the new technique of ultrahigh pressure liquid chrom
Autor:
William E. Barber, Peter W. Carr
Publikováno v:
Analytical Chemistry. 53:1939-1942
Publikováno v:
Analytical Chemistry. 53:1373-1376
Autor:
William E. Barber, Peter W. Carr
Publikováno v:
Journal of Chromatography A. 260:89-96
A method that uses standard reversed-phase high-performance liquid chromatographic columns and UV detectors to separate and quantitate low levels of poorly absorbing or UV-transparent inorganic anions is described. The anions are separated on a rever