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    STUDIA CHEMIA - Issue no. 1 / 2004  
         
  Article:   OPTIMIZATION OF THE TERNARY MOBILE PHASE USED IN THIN-LAYER CHROMATOGRAPHY BY THE "WINDOW DIAGRAMS" METHOD.

Authors:  DORINA CASONI, CLAUDIA CIMPOIU, VASILE MICLĂUȘ, TEODOR HODIŞAN, COSTINELA LAURA GÁSPÁR. 		 
       
         
  Abstract:  The most important problem of planar chromatography is the theoretical and experimental elaboration of methods for predicting mixture separation conditions that would eliminate the arduous choice of the optimum parameters of a chromatographic process. In this paper "window diagrams" method is used for optimizing the solvent system used in separating of eight dyes by thin-layer chromatography. Kowalska retention model is used to determine the separation selectivity. Among the interpretative methods for optimizing separation quality, those that employ window diagrams play a specific role, mostly because of the compulsory implementation of this approach with a reliable theoretical model of solute retention as an unavoidable precondition. An advantage of this optimization procedure is that the optimum composition can be easily obtained even for multicomponent mobile phase.  
         
     
         
         
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