Table 3 Partition coefficient values calculated for some biphasic solvent systems and related selectivity for α-asarone and β-asarone.

From: The role of centrifugal partition chromatography in the removal of β-asarone from Acorus calamus essential oil

System

n-Hex/EtOAc/MeOH/H2O solvent system (v/v/v/v)

Kd

α

α-asarone

β-asarone

1

1:1:1:1

0.15

0.28

1.87

2

6:1:6:1

1.34

1.26

1.06

3

9:1:9:1

1.94

1.70

1.14

4

19:1:19:1

2.48

2.12

1.17

  1. Selected solvent system is in bold.
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