J. Planar Chromatogr. 18, 67-72 (2005). TLC of trans-resveratrol (trans-3,5-dihydroxystilbene), semicarbazide and dimedone (as standards) on silica gel using different mobile phases; OPLC on silica gel with chloroform - methanol 10:1. After drying bioautographic detection by immersion in the bacterial suspension of Pseudomonas savastanoi for 25 s. Visualization with MTT either after a short draining period or after overnight incubation.

Einführung in die quantitative DC: Grundlagen, Möglichkeiten, Automatisierung, Teil 7. (Introduction to quantitative thin-layer chromatography: basics, possibilities, automation, part 7). This section presents the principle procedures involved in positioning the TLC spots in the measuring aperture of a computer-controlled TLC photometer. The various measuring techniques such as double wavelength or double beam measurements using a computer-controlled TLC photometer are explained, and the high degree of flexibility of such systems is discussed (2 refs.).

J. Chromatogr. 552, 613-623 (1991). Demonstration of the advantages of storage of the effluent from a reverse-phase column LC separation on a TLC plate for the separation and identification of polycyclic aromatic hydrocarbons in a marine sediment sample. Deposition of the effluent from a microbore LC column on a linearly moving TLC plate through a spray jet assembly interface. Identification of 11 polycyclic aromatic hydrocarbons by measuring their fluorescence excitation and emission spectra on the TLC plate with a conventional spectrometer.

J. Chromatogr. 437, 328-332 (1988). Preparative separation of closely related alkaloids from Papaver and Fumaria species on aluminium oxide by centrifugal TLC with cyclohexane - toluene - diethylamine 320:80:1, 160:40:1 or 160:40:3. Flow-rate 0.5-1.5 mL/min. The rotors (1 mm layer thickness) were prepared from a mixture of 40 g basic aluminium oxide, 10g calcium sulfate hemihydrate and 110 mL water.

Anal. Chim. Acta 641 (1-2), 52-58 (2009). Comparison of classical filtering techniques (Savitzky–Golay, Adaptive Degree Polynomial Filter, Fourier denoising, Butterworth and Chebyshev IIR filters) and wavelet shrinkage (31 mother wavelets, 3 thresholding techniques and 11 decomposition levels) with the original noisy signal and a reference signal which was denoised experimentally by averaging 64 measurements. The best similarity to the reference signal was obtained with filters, however the signal was slightly oversmoothed. The wavelet shrinkage method gave less denoised signals. There was a significant influence of the thresholding technique and decomposition level, and best conditions were at level 2 or 3 and soft thresholding), whereas changing of the mother wavelet almost did not change the result. The presented results can be used as general recommendations for denoising densitometric fingerprints before applying further chemometric algorithms. The best choices were: Savitzky–Golay filter of appropriate window width (optimized against autocorrelation) or wavelet shrinkage with Haar wavelet, soft thresholding and high decomposition level.

8. Integration problems in QTLC. J. Planar Chromatogr. 2, 128-132 (1989). Some integration problems in quantitative TLC are illustrated. A prepared program simulates chromatograms with different position, concentrations, and shapes of chromatographic peaks. The results of integration are presented and discussed. In TLC it is necessary to find the correct peak start. Evaluation of a small peak after a big one can be done more precisely than the evaluation of a small one in front of a large one.

J. of Chromatogr. Sci. 49, 560-567 (2011). Evaluation of the fingerprinting efficiency of a novel two-dimensional analytical system composed of RP-TLC and RP-LC-MS. The efficiency of the system was compared with that of the one-dimensional system RP-TLC with MS detection. The test samples were phenolic acid extracts from Salvia lavandulifolia. Both systems can be applied to the fingerprint analysis of herbal extracts, but the two-dimensional system based on RP-TLC and RP-LC-MS can provide more abundant information.

Lipids 17, 515-518 (1982). TLC of acidic lipids on silica after column chromatography with chloroform - methanol - 0.25 % KCl 60:35:8. Detection with bromothymol blue. Zones scraped off. Elution of the indicator with chloroform - methanol 8:2 and of cholesterol glucuronide and ganglioside with chloroform - methanol 5:5.