Anal Chem. 70, 1916-1920 (1998). The combination of TLC with X-ray fluorescence without any interface enables the direct, nondestructive visualization of elements separated on a TLC plate. In addition to inorganic compounds, organics like phenolic compounds containing chlorine, bromine, or iodine were distinctly detected by individual elemental imaging. TLC of inorganic metal acetates and FeCl3 and MgCl2, protoporphyrin and the metal complexes (Mn and Co), chlorinated pesticide standards, pentachlorophenol, pentabromophenol, 2,4,6-triiodophenol on e.g. cellulose and silica gel with suitable solvent systems. After drying the plate was wrapped in polyethylene film and pasted on a sample stage of 100 x 100 mm2 using two-sided adhesive tape. XRF was conducted using an X-ray analytical microscope.

J. Planar Chromatogr. 15, 286-288 (2002). To characterize the stability and retention behavior of zinc carboxylato mixed-ligand complexes movement of the carboxylate ligand has been monitored by TLC coupled with time-of -flight secondary-ion mass spectrometry (TLC-TOF SIMS). TLC of zinc carboxylato mixed-ligand complexes on RP-18, prewashed with methanol, with methanol - water 2:3. After development the layers were coated with silver, from the vapor state, and the analytes were eluted with a strongly polar mobile phase to a target channel.

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.

J. Liquid Chromatogr. 6, 1213-1220 (1983). TLC of benzo(a)pyrene and dimethylbenzanthracene on silica with benzene - hexane 1:9. Detection by UV after drying under nitrogen.

J. Chromatogr. 568, 1-10 (1991). Identification and quantification of over 50 molecular species of triacylglycerols, which were first resolved by silver ion TLC into seven fractions. GC and desorption chemical ionization MS.

Proc. 6th Int. Symp. Instrum. Planar Chromatogr., (Interlaken 1991), Inst. Chromatogr., Bad Dürkheim, FRG, 81-82 (1991). Home-made device, based on a Linomat spray assembly applies samples as a controlled (4-15 µL/min) nebulized spray on a rotating chromarod. Sample volumes can be selected from 1-500 µL.

Phytochem. Anal. 20, 19-23 (2009). TLC of curcumin (1), demethoxycurcumin (2), and bisdemethoxycurcumin (3) from the rhizomes of Curcuma longa on silica gel with hexane – chloroform – methanol 10:10:1 as mobile phase. Quantitative determination by recording the chromatogram using a digital scanner and analyzing the density of the TLC spot with the Scion Image software. The hRf values of (1), (2), and (3) were 42, 25, and 18, respectively. Selectivity regarding matrix was given. Linearity was between 0.375 and 6 µg/spot for all curcuminoids. The intermediate precision of the method was satisfactory. Recovery was 101.9 % for (1), 104.8 % for (2), and 101.5 % for (3). The limits of detection and quantification were 43 and 143 ng/spot for (1), 69 and 230 ng/spot for (2), and 73 and 242 ng/spot for (3). The method was compared with an official densitometric method, and the analytical results were not significantly different.

J. Planar Chromatogr. 2, 138-141 (1989). To overcome structure signals of the HPTLC-plates the concept of multiple scanning at changed angles of a planar chromatogram rotated stepwise was used. The procedure does not falsify raw data and has nothing to do with any kind of smoothing. The authors work with the mean values but do not touch the original raw data.