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SILICAGEL [1 record]

Record 1 2025-07-07

English

Subject field(s)
  • Physics
  • Analytical Chemistry
CONT

Thin layer chromatography (TLC) is done exactly as it says – using a thin, uniform layer of silica gel or alumina coated onto a piece of glass, metal or rigid plastic. The silica gel (or the alumina) is the stationary phase.

French

Domaine(s)
  • Physique
  • Chimie analytique
DEF

Chromatographie d'absorption où la phase stationnaire solide (cellulose, oxyde d'aluminium, silice) est disposée en couche uniforme épaisse de 0,2 à 3 mm sur une plaque de verre, d'aluminium ou de plastique.

OBS

La phase mobile est entraînée par capillarité. La vitesse de migration dépend des forces électrostatiques retenant le composé sur la plaque stationnaire et de sa solubilité dans la phase mobile.

Spanish

Campo(s) temático(s)
  • Física
  • Química analítica
DEF

Sistema con un adsorbente de silicagel sobre un soporte de vidrio sobre el que emigra el producto a analizar.

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