Amer. Lab. 24, 50T (1992). Discussion of parameters for visualization of hard layer TLC and HPTLC plates to change the sensitivity, color , limit of detection, or reaction speed to the advantage of the detection required.

LC-GC 13, 816-123 (1995). A review with 35 references on the use of TLC for converting substances into fluorescing derivatives using reagent-free activations, showing that by using fluorescence induction on amino-modified silica layers, fruit acids can be successfully detected, which is normally difficult.

J. Planar Chromatogr. 13, 317-320 (2000). TLC of 2-, 3-, 4-chlorophenol, 2,4-, 2,5-, 2,6-, 3,4- and 3,4-dichlorophenol, 2,4,5- and 2,4,6-trichlorophenol, catechol, resorcinol, pyrogallol, phloroglucinol on silica gel, silica gel-kieselguhr and polyamide with n-heptane - benzene - diethyl ether 1:1:1 for chlorophenols and benzene - methanol acetic acid 45:8:4 for polybasic phenols. Visualization with 16 different reagents resulted in different detectabilities on the different sorbents. Whereas the detectability of polyphenols with 100 ng is comparably good, no satisfactory visualizing reagent for chlorophenols has yet been found. Stable, fast and sensitive detection.

Chromatographia 65 (3-4), 239-243 (2007). Description of a novel TLC densitometric method for the determination of solasodine in various Solanum species (Solanaceae). Solasodine does not show UV absorption therefore TLC of an ion pair complex of solasodine with an acid dye was performed. TLC plates developed by using a solvent with an organic acid ensured in situ color development of the complex. Densitometry at 461 nm. Linearity was 79.2 - 495 ng/zone, with a correlation coefficient of 0.995. The method shows good reproducibility, specificity and accuracy (98.54 ± 2.8%), and eliminates post derivatization steps and the problem of background interference. Validation of the method and application of the method to determine solasodine content in various herb samples, herb extract and their formulations, without matrix interference observed.

J. Planar Chromatogr. 27, 328-332 (2014). HPTLC of crude extracts of micro-algae Dunaliella bioculata, Phaeodactylum tricornutum, and Scenedesmus obliquus on silica gel with dichloromethane - methanol 95:5. Data analysis of pictures digitally acquired at UV 254 nm and UV 366 nm included baseline correction, chromatogram alignment, principal component analysis (PCA) de-noising and diffusion drift correction. The workflow allowed to obtain a peak list containing hRF values, intensities and areas for statistical analysis.

Anal. Chem. 57, 353-358 (1984). Description of a TLC plate scanner interfaced with a quadrupole mass spectrometer, which has been used to determine the response to various compounds spotted on different TLC surfaces. With regard to desorption characteristics, silanized silica gave the best results, followed by polyamide. The more polar and the less volatile a compound, the more difficult its detection. The authors do not foresee the scanner's use as a routine TLC detector, they feel the scanner can best serve in the development of routine TLC methods and in "one-off" kind TLC analysis.

J. Planar Chromatogr. 1, 198-213 (1988). Review with 192 references on the analytical uses of fluorodensitometry in HPTLC and on the procedures that may increase sensitivity and selectivity. Illustration of fluorescence enhancement, fluorescence induction and pre- and post chromatographic derivatization methods by application examples.

Anal. Chim. Acta 224, 315-318 (1989). Exploration of the feasibility of using kinetic detection and simultaneous kinetic methods for the determination of species separated on TLC plates. Test of the method by monitoring the reaction of ninhydrin with leucine, isoleucine and phenylalanin. Comparison of the results obtained by three instruments. Investigation of the possibility of using kinetic methods to resolve responses from overlapped species. Discussion of the instrumental requirements for successful utilization of the method.