The Taylor dispersion (peak‐broadening) technique is used to measure the quaternary interdiffusion coefficients of the four‐component systems sucrose + LiCl + KCl + water and tetra‐n‐butylammonium bromide + LiBr + KBr + water at 25°C. The dispersion of the eluted solutes is followed by differential refractometry. Direct least‐squares analysis of the measured peak shapes is used to calculate the interdiffusion coefficients. Equations are developed to describe dispersion in multicomponent systems containing arbitrary numbers of components.
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Derek G. Leaist (1991) studied this question.
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