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AMBIENTUM BIOETHICA BIOLOGIA CHEMIA DIGITALIA DRAMATICA EDUCATIO ARTIS GYMNAST. ENGINEERING EPHEMERIDES EUROPAEA GEOGRAPHIA GEOLOGIA HISTORIA HISTORIA ARTIUM INFORMATICA IURISPRUDENTIA MATHEMATICA MUSICA NEGOTIA OECONOMICA PHILOLOGIA PHILOSOPHIA PHYSICA POLITICA PSYCHOLOGIA-PAEDAGOGIA SOCIOLOGIA THEOLOGIA CATHOLICA THEOLOGIA CATHOLICA LATIN THEOLOGIA GR.-CATH. VARAD THEOLOGIA ORTHODOXA THEOLOGIA REF. TRANSYLVAN
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STUDIA CHEMIA - Ediţia nr.1 din 2004 | |||||||
Articol: |
OPTIMIZATION OF THE TERNARY MOBILE PHASE USED IN THIN-LAYER CHROMATOGRAPHY BY THE "WINDOW DIAGRAMS" METHOD. Autori: DORINA CASONI, CLAUDIA CIMPOIU, VASILE MICLĂUȘ, TEODOR HODIŞAN, COSTINELA LAURA GÁSPÁR. |
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Rezumat: 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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