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An approach to evaluate the thermodynamic properties of ethoxylated nonionic surfactants by using the reversed-phase high-performance liquid chromatography (RP-HPLC) is described. The enthalpies (ΔH o ) and entropies (ΔS o ) of transfer from the mobile to the stationary phase were determined using the change of capacity factor with temperature. The surfactants taken into consideration...
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