Issue 10, 1997

Step-gradient Capillary Electrochromatography

Abstract

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 lipophilic components. When the step-gradient approach was performed in an automated mode, the retention time RSD for repeated injections was below 1%.

Article information

Article type
Paper

Analyst, 1997,122, 1087-1088

Step-gradient Capillary Electrochromatography

M. R. Euerby, D. Gilligan, C. M. Johnson, M. R. Euerby and K. D. Bartle, Analyst, 1997, 122, 1087 DOI: 10.1039/A703175K

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