J. Planar Chromatogr. 31, 361-365 (2018). TLC of (±)-terbutaline on silica gel with chiral ligand-exchange reagent (LER). L-(‒)-Trp, L-(‒)-Phe, and L-(‒)-His were chosen as chiral selectors. Copper(II) acetate (2 mM) and L-amino acid (4 mM) solutions were prepared in water ‒ methanol 17:1 and mixed to be used as LER. In terms of resolution, best enantioseparation was obtained with acetonitrile ‒ methanol ‒ chloroform ‒ water 10:4:3:3 using L-Trp as chiral selector. The hRF values for (-) and (+)-isomers were 20 and 56, respectively.

J. Planar Chromatogr. 2, 190-193 (1989). Presentation of information concerning the stationary phases and corresponding retention mechanisms which are applied for TLC-separation of optical antipodes. The following chiral stationary phases have been used successfully for this purpose: cellulose and derivatives; cyclodextrins; „Pirkle“ selectors; impregnations with chiral acids or bases; and complexes of copper and optically active ligands (amino acids or their derivatives). A special emphasis is laid on applications of chiral ligand exchange chromatography (LEC), the most important separation principle in this field.

Chiral separations on cellulose with aqueous solvents. J. Chromatogr. 604, 55-62 (1992). Examination of chiral properties of different celluloses in adsorption TLC with aqueous solvents. Comparison of D- and L-tryptophan and D- and L-methyltryptophan on microcrystalline cellulose. Separation of D- and L-fluorotryptophan using long (40 cm) thin layers of microcrystalline cellulose.

Anal. Chem. 66, 2636-2639 (1994). Description of a new separation approach, combining TLC and molecular imprinting. Chiral TLC separation of model compounds, L- and D-phenylalanine anilide, on plates based on the molecular imprinting technique with a mobile phase consisting of 0, 5, 10, or 15 % acetic acid in acetonitrile. Detection by spraying with fluorescamine (0.05% in acetone ), and viewing under UV 366 nm. Test of the separation of other compounds (anilide, dansyl, ester and amide derivatives of amino acids) on L-phenylalanine anilide and nonimprinted plates. Demonstration of a novel and promising family of stationary phases based on predetermined selectivity for use in TLC.

J. Chromatogr. A 721, 369-372 (1996). TLC of (±)-ibuprofen on silica impregnated with optically pure L-arginine (0.5 %) as the chiral selector, with acetonitrile - methanol - water 5:1:1. Detection by spraying with HCl and heating for 15 min, and with 0.2 % ninhydrin in acetone. Detection limit 0.1 µg.

J. Planar Chromatogr. 12, 298-301 (1999). TLC of chiral compounds (e.g. PTH- and MTH-amino acids, N- and C-subsituted amino acids, 3,5-dinitro-N-(1-phenylethyl)benzamide, N-benzoyl-leu-bNA) on home-made MCTA plates (using a Chemetron automatic plate spreader). Mobile phases were 2-propanol - water 4:1 and ethanol - water 4:1. Detection by UV at 254 and 364 nm. Quantitation by densitometry in reflectance mode at 254 nm.

J. Planar Chromatogr. 14, 194-198 (2001). TLC of two classes of chiral drugs, including b-blockers and non-steroidal anti-inflammatory drugs on molecularly imprinted layers using the enantiomers of either the b-blockers, R-(+)-propanolol, R-(+)- or S-(-)-atenolol, or the NSAID, S-(+)-naproxen and S-(+)-ibuprofen, as print molecules. Acetonitrile resp. tetrahydrofuran - heptane 1:1 was used as mobile phase. Detection by spraying with a solution of anisaldehyde and heating at 120°C.