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Comparison of 25 mM poly-L-SUCLS (A), 25 mM poly-L-SUCL (B), and 50 mM poly-L-SUCLS (C) for enantioseparation of chiral phenoxypropionic acid [(±)-(2-PPA), 0.5 mg/mL in MeOH/H2O]. MEKC conditions (A, B): pH 8.00, 25 mM NH4OAc/ 25 mM TEA, 15 °C, pressure injection 50 mbar s, +20 kV applied for separations, UV detection at 200 nm. (C)MEKC conditions same as 5(A) except pH 2.00, 25 mM NaH2PO4/ 25 mM CH3COONa and −20 kV applied for separations.
