Column Chromatography Retention Factor Calculator
Calculate the retention factor k from retention and hold-up times.
k = (tR − tM) / tM
Use the same time unit and require tR > tM > 0. This column chromatography factor is dimensionless and is not the TLC Rf distance ratio.
All calculations run locally in your browser.
Original explanation based on IUPAC Gold Book terminology; attribution: IUPAC, Gold Book. Reference material: CC BY-SA 4.0. No source passages or figures are reproduced. License: CC BY-SA 4.0
A QUICK WALKTHROUGH
How to use this tool
- Enter the values in one common time unit, then calculate.
- Use the same time unit and require tR > tM > 0. This column chromatography factor is dimensionless and is not the TLC Rf distance ratio.
Formula
k = (tR − tM) / tM
Input basis
Use the same time unit and require tR > tM > 0. This column chromatography factor is dimensionless and is not the TLC Rf distance ratio.
Processing and attribution
All calculations run locally in your browser. Original explanation based on IUPAC Gold Book terminology; attribution: IUPAC, Gold Book. Reference material: CC BY-SA 4.0. No source passages or figures are reproduced. https://goldbook.iupac.org/terms/view/R05359
GOOD TO KNOW
Common questions
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All calculations run locally in your browser.