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KMID : 1059519880320050458
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Journal of the Korean Chemical Society
1988 Volume.32 No. 5 p.458 ~ p.463
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A New Solubility Parameter for Retention Behavior in Liquid Chromatography
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Oh Tae-Sub
Lee Sun-Haing
Kim Soo-Han
Kim Sang-Tae
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Abstract
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The solubility parameter theory for retention behaviors of phenols in a reversed phase liquid chromatography can be applied to limited ranges of the aqueous solvent system. The many examples of the exception to this theory were found to show no agreement with the retention behavior of phenols. Therefore, a new solute-solvent interaction parameter, δim is added to the Schoenmakers equation of the solubility parameter theory in LC to approach the equation to the real one. The new solute-solvent interaction pararneter, δim depends on the kinds of solvent, the solvent composition and the structure of solutes. The parameter, δim has the linear relationship with the solubility parameter of mobile phase, δm. The prediction of retention behavior by this modified equation turns out to be greater than the previous one.
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KEYWORD
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