J. Liquid Chromatogr. 15, 1639-1663 (1992). Description of a portable TLC device.

J. Planar Chromatogr. 11, 353-356 (1998). A mixture of ten pesticides - MCPA, atrazine, propham, chloropham, ofurace, triadimefon, biteranol A, biteranol B, tetramethrin, and a-cypermethrin - has been separated by two-dimensional development on cyano HPTLC plates with a polar mobile phase (methanol - water 3:2) in the first direction and a nonpolar mobile phase (hexane - ether 1:1) in second dimension. Chromatograms were recorded with a sensitive color CCD camera and evaluated with a software. Two quantification modes were compared - scanning of the whole plate and scanning of manually defined bent tracks. The precision of video-densitometric quantitation of the 2D chromatogram, expressed as the repeatability of image capturing and track setting, was determined.

J. Chromatogr. A 1155 (1), 112-123 (2007). Presentation of a novel strategy for the fractionation of complex peptide mixtures using two-dimensional planar electrochromatography/thin-layer chromatography (2D PEC/TLC). It was found that phosphopeptides migrate more slowly in the first dimension, based upon their anionic phosphate residues, and certain predominantly acidic phosphopeptides even migrate in the opposite direction, relative to the bulk of the peptides. Further distinguishing phosphopeptides based upon hydrophilicity in the second dimension, which permits a restricted region of the plate to be directly interrogated for the presence of phosphopeptides by MS. Discussion of peptide sequencing and identification of phosphopeptide from the plates by matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF)-MS and tandem MS.

Budapest Chromatography Conference, June 2, 1983. Review article. Application of overpressured TLC, comparison of TLC and HPTLC, a novel type of overpressured thin-layer chromatography.

(Introduction to quantitative thin-layer chromatography: basics, possibilities, automation (part 8). Kontakte 2, 40-45 (1983). This paper deals with a summary of the different types of errors in quantitative TLC. Errors caused by the chromatographic process, by the sorbent layer or by the evaluation techniques are discussed. While apparatus-dependent errors are generally difficult to eliminate, many errors in the evaluation techniques may be avoided. The problem of error propagation is also discussed with experimental examples (8 refs.).

J. Planar Chromatogr. 4, 154-157 (1991). Description of documentation of chromatograms by photography under UV light or daylight with color negative prints or transparencies including archiving the films.

J. Planar Chromatogr. 28, 472-475 (2015). HPTLC of 17α-ethinylestradiol (extracted from water samples using a monolithic stir-bar) on RP-18 with methanol - acetonitrile - water 2:2:1. Detection by heating at 110 °C for 10 min followed by dipping into a mixture of sulfuric acid 98 % in water 1:49 for 1 s. After dipping the plate was heated again to 110 °C for 10 min. The hRF value for 17α-ethinylestradiol was 51.

Anal. Chim. Acta 236, 83-97 (1990). Summary of the state of art of various preparative planar liquid chromatographic methods for off-line and on-line sample application. Discussion of sample purification possibilities for PLC techniques. Suggestions in form of flow charts for purification and isolation strategies using forced-flow planar chromatographic techniques, such as OPLC, etc.