Results 121 to 130 of about 205,229 (163)

Step-gradient Capillary Electrochromatography

The Analyst, 1997
The analytical benefits of using a step-gradient in capillary electrochromatography (CEC) are demonstrated. The application of step-gradient CEC to the analysis of six diuretics of widely differing lipophilicities was evaluated and shown to result in a marked reduction in the analysis time and an improvement in the peak shape for later-eluting ...
Melvin R. Euerby, Declan Gilligan, Christopher M. Johnson, Melvin R. Euerby, Keith D. Bartle   +4 more
openaire   +2 more sources

Recent applications of capillary electrochromatography

ELECTROPHORESIS, 2001
A review is presented of the most important recent applications of capillary electrochromatography (CEC) for the analysis of acidic, basic, and neutral compounds, of biomolecules, environmental substances, natural products, pharmaceuticals, and chiral compounds.
G, Vanhoenacker, T, Van den Bosch, G, Rozing, P, Sandra   +3 more
openaire   +2 more sources

Capillary electrochromatography of proteins and peptides

Journal of Separation Science, 2007
AbstractThis review summarizes applications of CEC for the analysis of proteins and peptides. This “hybrid” technique is useful for the analysis of a broad spectrum of proteins and peptides and is a complementary approach to liquid chromatographic and capillary electrophoretic analysis.
Ivan, Miksík, Pavla, Sedláková
openaire   +2 more sources

Tapers and restrictors for capillary electrochromatography and capillary electrochromatography-mass spectrometry

Journal of Chromatography A, 1997
Tapered and narrow restrictor capillaries have been investigated for use in capillary electrochromatography (CEC) and have been shown to offer viable, more reproducible, alternatives to silica frits and may aid in suppression of bubble formation, a recognised problem in CEC.
G.A. Lord, D.B. Gordon, P. Myers, B.W. King   +3 more
openaire   +1 more source

Immunoaffinity screening with capillary electrochromatography

ELECTROPHORESIS, 2002
Highly efficient capillary electrochromatographic separations of cardiac glycosides and other steroids are presented. Employing butyl-derivatized silica particles as stationary phase resulted in a nearly three times faster electroosmotic flow (EOF) compared to capillary electrochromatography (CEC) with octadecyl silica particles.
Mayer, Michael, Muscate-Magnussen, Angelika, Vogel, Horst, Ehrat, Markus, Bruin, Gerard J. M.   +4 more
openaire   +4 more sources

Capillary electrochromatography with macroporous particles

Journal of Chromatography A, 1999
The performance of macro-porous particles in capillary electrochromatography is studied. Three reversed-phase stationary phases with pore diameters between 500 A and 4000 A have been tested for separation efficiency and mobile phase velocity. With these stationary phases, a large portion of the total flow appears to be through the pores of particles ...
Stol, R., Kok, W.Th., Poppe, H.
openaire   +4 more sources

Recent applications in capillary electrochromatography

ELECTROPHORESIS, 2006
AbstractIn this review research papers on the application of CEC are summarized that have been published between May 2003 and May 2005. First, a short overview is given of trends and developments in CEC that may increase the applicability of the separation technique.
Eeltink, S., Kok, W.Th.
openaire   +4 more sources

Homogeneous gels for capillary electrochromatography

Journal of Chromatography A, 2005
Homogeneous gels represent a new type of (electro)chromatographic media possessing unique separation properties unmatched with any other chromatographic beds. It is important to emphasize that they principally differ from continuous beds, polymer rods (better known as monoliths), which are particulate separation media with pores permitting hydrodynamic
openaire   +2 more sources

Migration of ions in capillary electrochromatography

Journal of Chromatography A, 2000
For capillary electrochromatography (CEC) to be a generally used analytical technique the origin of the unusual, and often unwanted, peak shapes, which regularly occur for ionic compounds, must be understood. A mass balance analysis is the most fundamental approach to investigate the origin of non-linear effects during the migration of an eluite.
openaire   +2 more sources

Capillary Electrochromatography

2003
Michael Lämmerhofer, Wolfgang Lindner
openaire   +3 more sources