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LIQUID-LIQUID PARTITION [1 record]

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Record 1 1996-07-26

English

Subject field(s)
  • Analytical Chemistry
CONT

A major difficulty with liquid chromatography is predicting the proper phase systems to use, and in most instances these must be determined experimentally. Both liquid-liquid (partition) and liquid-solid (adsorption) processes operate on differences in solute polarities since polarity is important in determining both adsorption and solubility. Liquid-liquid partition processes are quite sensitive to small molecular-weight differences in solutes and so are preferred for the separation of members of a homologous series.

French

Domaine(s)
  • Chimie analytique
CONT

Selon le cas, on peut distinguer comme mécanismes fondamentaux : soit le partage entre deux phases liquides (on a alors une chromatographie de partage); soit la liaison de composés en mouvement avec la surface d'une phase stationnaire solide [...]

Spanish

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