The enantioselective separations of (R,S)-Ket (peak 1R and 1S), (R,S)-norKet (2R and 2S) and (R,S)-DHNK (3R and 3S) on the AGP-CSP, where: A. Standard solutions; B. An extracted plasma sample obtained on Day 3 from a CRPS patient receiving (R,S)-Ket; C. An extracted urine sample obtained on Day 3 from a CRPS patient receiving (R,S)-Ket. See text for experimental details.