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  Evaluation of non linear gradients for the separation of ternary mixtures

Damtew Hamza, A., & Seidel-Morgenstern, A. (2006). Evaluation of non linear gradients for the separation of ternary mixtures. Poster presented at SPICA 2006: 11th International Symposium on Preparative and Industrial Chromatography and Allied Techniques, Innsbruck, Austria.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-9987-0 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0026-DB4B-9
Genre: Poster

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 Creators:
Damtew Hamza, Andualem1, 2, Author              
Seidel-Morgenstern, A.1, 2, Author              
Affiliations:
1Otto-von-Guericke-Universität Magdeburg, External Organizations, ou_1738156              
2Physical and Chemical Foundations of Process Engineering, Max Planck Institute for Dynamics of Complex Technical Systems, Max Planck Society, ou_1738150              

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 Abstract: Based on a recent theoretical study [1] in this work, the potential of applying non linear gradients in preparative chromatography was evaluated. The second eluting component of a ternary mixture was considered as the target component. Systematic experiments were conducted for a model systems using reversed phase chromatography. The target component was provided a) in excess or b) in low amount. Concave and convex gradients were analysed and compared with the conventional linear gradient. A main result of the study is the fact that a significant improvement in productivity can be achieved if the gradient shapes are carefully designed. This requires extended preliminary experimental investigations in order to quantify the effect of the mobile phase composition on the specific distribution equilibria. Another result is the demonstration that the Crag model is capable to quantify the essential features of the gradient elution. 1. Y. Shan, A. Seidel-Morgenstern, J. Chromatogr. A 1093, 47-58

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Language(s): eng - English
 Dates: 2006
 Publication Status: Not specified
 Pages: -
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 Rev. Method: -
 Identifiers: eDoc: 282607
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Title: SPICA 2006 : 11th International Symposium on Preparative and Industrial Chromatography and Allied Techniques
Place of Event: Innsbruck, Austria
Start-/End Date: 2006-10-15 - 2006-10-18

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