Which of the following is the ratio of the interstitial volume of packing to the volume of its total mass?(a) Distribution constant(b) Volumetric phase ratio(c) Retention factor(d) Total porosityI had been asked this question during an interview.Query is from Chromatographic Behaviour of Solutes in section Chromatography of Analytical Instrumentation

Which of the following is the ratio of the interstitial volume of pack

1.	Which of the following is the ratio of the interstitial volume of packing to the volume of its total mass?(a) Distribution constant(b) Volumetric phase ratio(c) Retention factor(d) Total porosityI had been asked this question during an interview.Query is from Chromatographic Behaviour of Solutes in section Chromatography of Analytical Instrumentation
Answer» CORRECT CHOICE is (d) Total porosity For EXPLANATION: Total porosity is the ratio of the interstitial volume of packing to the volume of its total mass. In a capillary column, total porosity is 1.

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