Question: The distribution constant for a solute in chromatography is KD=[S]S/[S]M, KD=[S] g /[S] M , where [S]S[S] S is the concentration in the stationary phase

The distribution constant for a solute in chromatography is KD=[S]S/[S]M, KD=[S]_g/[S]_M, where [S]S[S]_S is the concentration in the stationary phase and [S]M[S]_M is the concentration in the mobile phase. The larger the distribution constant, the longer it takes a solute to be eluted. Explain why.

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