Document Detail


Numerical technique and computational procedure for isotachophoresis.
MedLine Citation:
PMID:  2079035     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This paper presents a new numerical method for computation of solutions of prototypical equations of isotachophoresis. Numerical computation is complicated because the Poisson equation, which relates electrostatic potential to space charge density, contains a small parameter. This parameter is usually assumed to have the value of zero. Under this assumption the Poisson differential equation is replaced by an algebraic equation, which is often called the equation of electroneutrality, because it indeed states that the electrolyte is electrically neutral this assumption were not studied in the past. Here we propose an iterative procedure which allows for computation of solutions without the assumption of electroneutrality. The accuracy is controlled by a number of iterations and is limited by a computer round-off error only. The method is based on our previously published theory of existence and uniqueness of solutions of isotachophoretic equations. Details of the computational algorithm for prototypical equations of isotachophoresis are given. A numerical example and comparison with previously published data are also provided.
Authors:
O A Palusinski; Y Su; P C Fife
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Electrophoresis     Volume:  11     ISSN:  0173-0835     ISO Abbreviation:  Electrophoresis     Publication Date:  1990 Nov 
Date Detail:
Created Date:  1991-04-30     Completed Date:  1991-04-30     Revised Date:  2000-12-18    
Medline Journal Info:
Nlm Unique ID:  8204476     Medline TA:  Electrophoresis     Country:  GERMANY    
Other Details:
Languages:  eng     Pagination:  903-7     Citation Subset:  IM    
Affiliation:
Department of Electrical and Computer Engineering, University of Arizona, Tucson 85721.
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MeSH Terms
Descriptor/Qualifier:
Algorithms
Electrolytes
Electrophoresis*
Models, Statistical
Poisson Distribution*
Reproducibility of Results
Chemical
Reg. No./Substance:
0/Electrolytes

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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