J. Planar Chromatogr. 19, 4-9 (2006). TLC and HPTLC of 2-thioguanidine and 6-mercaptopurine on silica gel with methanol in a horizontal DS-chamber. Spots were visualized with a freshly prepared solution of sodium azide and starch, adjusted to a pH within the range 5.5-6.0, and then exposed to iodine vapor. The thiols became visible as white spots on a violet-gray background. The iodine-azide reagent enabled detection of quantities in the range 1-80 pmol per spot.

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.

J. Planar Chromatogr. 2, 49-52 (1989). Luminiscence polarization of chromatographic spots of 23 DNS amino acids using a two channel scanning laser fluorometric detector. TLC of DNS amino acids on polyamide with 1.5% formic acid in water.

J. Liquid Chromatogr. 13, 2829-2839 (1990). Description of a field portable TLC scanner based on digital image processing hardware, consisting of a CCD imaging hardware to capture and process video images. Use of a laptop computer with a software for subtraction of noise, correction of variations, automated lane finding, calibration, peak finding and integration.

Anal. Sci. 9, 309-310 (1993). Investigation of the two-photon ionization detection for photo-absorbing molecules on TLC plates using a third harmonic laser, providing high spatial resolution. Discussion of the use of the mesh electrode for the photoionization detection of photo-absorbing molecules on other nonelectroconductive materials such as paper and glass.

Anal. Chem. 68, 3885-3891 (1996). Investigation of the use of a scientifically operated charge-coupled device (CCD) for the detection and quantification of aflatoxins on a HPTLC plate. Use of a nebulizer-based sample application system to transfer the sample quantitatively onto the plate. Accomplishment of fluorescence excitation of the aflatoxins with a transilluminator, which caused the analytes to emit in the blue-green portion of the visible spectrum. Evaluation of the dynamic range, sensitivity, accuracy and precision of the system. Detection limits in the low picogram range.