In a chromatographic analysis of low-molecular-weight acids, HA elutes with a retention time of 4.53 min. The column void time is 0.24 min. Calculate the capacity factor for HA. In the same chromatogram, HB acid elutes with a retention time of 3.79 min. What is the selectivity factor for HA and HB acids?

EBK A SMALL SCALE APPROACH TO ORGANIC L
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Chapter91: Gas Chromatography
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In a chromatographic analysis of low-molecular-weight acids, HA elutes with a retention time of 4.53 min. The column void time is 0.24 min.

  1.  Calculate the capacity factor for HA.
  2. In the same chromatogram, HB acid elutes with a retention time of 3.79 min.

What is the selectivity factor for HA and HB acids?

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