FIELD: analytical chemistry. SUBSTANCE: invention can be used for analysis of multicomponent mixtures, for separation and extraction of their individual components in medicine, pharmaceutics, microbiological and food industries. Process of manufacture of plate for thin-layer chromatography includes preliminary treatment of metal foil, deposition of adsorbent suspension with binder on it and drying of plate. Metal foil is treated at room temperature with 1-8% aqueous solution of water glass containing 0.5-2.0% potassium or sodium hydroxide. EFFECT: manufacture of high-quality plates for multiple usage.
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