chiral selector

https://doi.org/10.1351/goldbook.CT06931
The chiral component of the separation system capable of interacting enantioselectively with the enantiomers to be separated.
Source:
PAC, 1997, 69, 1469. 'Analytical chiral separation methods (IUPAC Recommendations 1997)' on page 1472 (https://doi.org/10.1351/pac199769071469)