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Which of the following is the ratio of the length of column packing to dead time?

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Which of the following is the ratio of the length of column packing to dead time?

(a) Average linear rate of solute migration

(b) Average linear rate of mobile migration

(c) Relative migration rate

(d) Selectivity factor

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The question is from Chromatographic Behaviour of Solutes in chapter Chromatography of Analytical Instrumentation

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Right option is (b) Average linear rate of mobile migration

Explanation: Average linear rate of mobile migration is the ratio of the length of column packing to dead time. It influences the effectiveness of the column in separating solutes.

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