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. Planar Chromatogr. 9, 92-97 (1996). Investigation of mixed (adsorption - partition) retention mechanisms on normal phase cyano, amino, and diol stationary phases with binary alcohol - n-aliphatic hydrocarbon eluents. The impact of the nature of the chemically bonded ligand and of the qualitative composition of the mixed mobile phase on the relative amounts of adsorption and partition has been clearly demonstrated for a selection of test solutes.

J. AOAC Int. 82, 297-304 (1999). Raman spectroscopic characterization of TLC RP-18-, RP-8-, RP-2-, aminopropyl- and cyanopropyl-, and diol -separation material in the wide, intense, and highly structured region from about 2285 to 1130 cm-1 is well suited for spectroscopic quantitation of the density of coverage of TLC-type RP-18 stationary phases and other TLC-type stationary phases with covalently chemically bonded organic ligands.

J. Planar Chromatogr. 15, 324-331 (2002). Using RP-18 and RP-8 as material, convincing evidence - acc. to the authors - was found of an efficient aromatization process occurring equally with TLC-type octadecyl and octyl ligands heated at 170°C.

Acta Chrom. 13, 102-108 (2003). Five commercial preparative layer chromatography plates precoated with silica gel of 1 mm thickness were compared on the basis of theoretical plate number and resolution by developing a test dye mixture (1.0 - 5.0 µg per zone) with ethyl acetate – methanol – water 4:1:1. Best results were obtained with the Mallinckrodt–Baker layer with 4.5 - 5.5 µm spherical particles. With one exception the efficiency and resolution of the other layers correlated with their particle size.

Labo 21, 7-12 (1990). Description of an additional method for quantification in planar chromatography offering qualified quantitative analysis before, with or instead of HPLC with one or many samples simultaneously. The instrumental requirements can be compared with HPLC.

Biomed. Chromatogr. 21 (10), 1064-1068 (2007). Indirect chiral separation of penicillamine (3,3-dimethylcysteine) enantiomers after derivatization with Marfey's reagent (FDNP-Ala-NH2) and two of its structural variants, FDNP-Phe-NH2 and FDNP-Val-NH2, with phenol - water 3:1 and solvent combinations of acetonitrile and triethylamine phosphate buffer in normal and reversed-phase TLC, respectively. Also separation of the diastereomers on a reversed-phase HPLC column with gradient elution of acetonitrile and 0.01 m trifluoroacetic acid. Comparison of the results due to these three reagents. Successful application of the method for checking the enantiomeric impurity of l-penicillamine in d-penicillamine and to check the enantiomeric purity of pharmaceutical formulations of d-penicillamine.

J. Planar Chromatogr. 23, 382-395 (2010). The paper summarizes progress in the main forced-flow planar liquid chromatographic (FFPLC) techniques taking into account one group of FFPLC used in practice, OPLC and rotation planar chromatography and another group like e. g. electrochromatographic techniques and shear-driven chromatography which show interesting results at an experimental level. Progress in FFPLC deals with the diversity of further instrumental developments and its basis, the instrument developments, determination of the role of the adsorbent layer in OPLC, challenges in the OPLC instrument development, and analytical and preparative applications of OPLC. Centrifugal layer or rotation planar chromatography is mentioned briefly. Two electrochromatographic techniques have been developed to accelerate the mobile phase flow, planar electrochromatography and planar dielectrochromatography using direct and alternating currents, respectively. One of the newest techniques among FFPLC is shear-driven chromatography in which the mobile phase is between two plates and is forced to flow above and inside the very thin adsorbent layer with shear-driven force generated by a moving plate. For the study of the biological activity of natural and synthetic compounds the planar adsorbent layer is advantageous, namely for in-vitro and in-vivo studies.