Use of chromatographic paper as the preadsorption zone
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A new type of plates for thin-layer chromatography (TLC) with a paper preadsorption layer is proposed. A method for the preparation of these TLC plates with a concentrating layer is described and their main Chromatographie characteristics are studied with an example of the separation of a test mixture of dyes. Chromatographic paper on glass and polymer plates is proposed as the preadsorption layer. The use of paper for obtaining the sample preadsorption zone drastically increases its volume and simplifies the introduction of a sample into the analytical system (analyzed spots of any shape can be applied) without impairing the efficiency of the process. The application range of TLC plates with flexible support is expanded because plates of this type with a concentrating layer have not been used before.
KeywordsMethyl Orange Chromatographic Paper Test Mixture High Performance Thin Layer Chromatography Main Layer
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