J. Planar Chromatogr. 2, 198-202 (1989). A new detector (Digital Autoradiograph, DAR) has been developed which measures, quantitatively position and intensity of 2-dimensional distributions of ionizing radiation from radioisotope labelled TLC plates. Examples and results of typical applications are presented, e.g. metabolites of pesticides or chloramphenicol-acetyl-transferase assay.

J. Planar Chromatogr. 6, 487-491 (1993). Study on the possibilities of using liquid crystals to perform quantitative determinations of organic compounds separated by TLC. Quantitative analysis reduces to simple measurements of the temperature at which the spot of the substance to be determined appears as mapped on a liquid crystalline detector.

Proc. 9th Internat. Symp. Instr. Chromatogr., Interlaken, April 9.-11., 147-154 (1997). A summary of the most important TLC-DAR (digital autoradiography technique) and NON TLC-DAR applications including different types of biological sample analysis in metabolism, pharmacokinetic, pharmacological and biochemical studies as well as in the chemical analysis of labeled compounds is given. One of the most important practical application of TLC-DAR technique is the utilization in preliminary in vitro and quantitative and comprehensive in vivo metabolism studies. Example is a metabolism study of deramciclane with TLC-DAR (TLC of extracted rats urine samples on silica with butanol - acetic acid - water 4:1:1). Measuring conditions are given in detail.

J. Chromatogr. A 904 (2), 263-268 (2000). Presentation of a simple miniaturized and lower power consuming (battery, fully semiconductor based) detector cell (SeBaDeC) for the densitometric measurement of aflatoxins on TLC plates, applying an UV-light emitting diode (UV-LED) with a peak emission wavelength of 370 nm for fluorescence excitation, while a photo diode with a peak sensitivity of 440 nm in combination with a 418 nm cut-off filter is used for detecting the fluorescence intensity. Amplification of the resulting signal by means of an operational amplifier integrated circuit (OA), and direct conversion into digital signal with a ADC. Recording the signal of the serial RS232 port of a portable PC and processing it with a spreadsheet program. Detection level as low as concentration of aflatoxins of 1 ng.

J. Planar Chromatogr. 18, 336-343 (2005). HPTLC of thirty-three compounds with benzodiazepine properties on silica gel after prewashing first with methanol and then with dichloromethane - methanol 19:1 in a saturated horizontal chamber and three optimized mobile phases: dichloromethane - methanol 19:1, ethyl acetate - cyclohexane - 25 % ammonia 50:40:0.1, and in a third run cyclohexane - acetone - methyl t-butyl ether 3:2:1. Diode-array HPTLC makes it possible to identify all the compounds with high certainty down to a level of 20 ng. An algorithm for spectral recognition which is combined with Rf values from the three separation steps into one fit factor is presented. This set of data is unique for each of the compounds investigated and enables unequivocal identification.

J. Liq. Chromatogr. Relat. Technol. 36, 2387-2394 (2014). The image processing programs ImageJ and Sorbfil TLC Videodensitometer were compared to study direct antioxidant properties of compounds separated from extracts obtained from Medicago sativa. Comparable results were obtained based on built-in functions present in both programs for processing TLC videoscans.

Anal. Chem. 55, 1992-1994 (1983). Demonstration of the feasibility of utilizing laser fluorometric detection in TLC/HPTLC.

Anal. Chem., 59, 2045-2050 (1987). Investigation of the performance of several mathematical approaches for quantification of components in case of severe chromatographic and spectroscopic overlap. Demonstration by the separation of two amino acids, glycine and glutamine on silica with 1-butanol - acetone - acetic acid - water 7:7:2:4 followed by derivatization with O-phthaldialdehyde. Studies of 5 approaches based on factor analysis and Kalman filtering methods with errors of 5.9% for glycine and - 6.4% for glutamine.