J. Chromatogr. 420, 411-416 (1987). TLC of phospholipids and fatty acids on boric acid-impregnated silica with chloroform - ethanol - water - triethyl amine 30:35:6:35. Detection of phospholipids by spraying with a solution of 5 mg primulin in 100 mL acetone - water 4:1 and examining under UV; detection of fatty acids by exposing to iodine vapour. Determination of fatty acids by GC after elution.

J. Liquid Chromatogr. 13, 2711-2725 (1990). Investigation of solute transfer at the interface column planar. Separations characterized by no-selective bulk transport forces such as elution, solvent evaporation, capillarity as well as the selective chromatographic force of classic TLC ultimate forces. Suppression of band broadening in planar medium using solute focusing. Discussion of »orthogonality« in the capacity ratio vs. efficiency relationships for the focused and nonfocused zones.

J. Planar Chromatogr. 6, 495-496 (1993). Description of an arrangement whereby the TLC plate can be used to receive 2-4 mL volumes of eluate directly from an SPE cartridge. TLC separation of 12 insecticides (oxamyl, dimethoate, methomyl, pirimicarb, carbaryl, carbosulfan, bromopropylate, phosalone, fenithothion, deltamethrin, lindane, endosulfane) on silica with dichloromethane - carbon tetrachloride 9:2 (first development, 8 cm) and dichloromethane - acetonitrile 10:1 (second development, 4 cm).

InCom-Sonderband 75-90 (1997). HPTLC of 32 pesticides and herbicides on (extra thin) silica gel layers using an universal gradient by means of an AMD-System. Detection by densitometry at 220 nm. On-line coupling of HPLC and HPTLC.

Chromatographia 53 (3/4), 210-215 (2001). TLC on silica gel with ethyl acetate - formic acid - ethanol - water 100:11:11:26, and chloroform - acetone - formic acid 50:33:17. Detection under UV 365 nm.

J. Chinese Trad. Patent Med. (Zhongchengyao) 26 (1), 19-23 (2004). TLC on silica gel in a basic developing system containing diethylamine. Detection by iodine vapour. Identification by standard comparison. Quantitative determination by densitometry at 340 nm. Validation of the method by investigation of the procedures, including sample preparation, mobile phase, visualization, scanning wavelength, linearity range (0.28-1.65 µg, r=0.9991), precision (RSD <1.4 % within plate and <2.4 % plate-to-plate), resolution, repeatability, reproducibility, and recovery (87.2 %-99.7 % for different medicine). Comparison of the results with those obtained by HPLC.

Anal. Chem. 76, 6484-6491 (2004). TLC on silica gel with chloroform - methanol - 0.2 % calcium chloride 11:9:2 or chloroform - 2-propanol - 50 mM potassium chloride 10:67:23 for separation of glycolipids, oligosaccharides, lipids, and compounds of environmental and pharmaceutical interest with coupling to an external ion source MALDI-Fourier transform (FT) MS instrument without compromising mass accuracy and resolution of the spectra. Furthermore, when the FTMS, with >70 000 resolving power, has a vibrationally cooled MALDI ion source, fragile glycolipids can be desorbed from TLC plates without fragmentation, even to the point that desorption of intact molecules from “hot” matrixes such as a-cyano-4-hydroxycinnamic acid is possible. TLC of whole brain gangliosides derivatized with orcinol-sulfuric acid reagent. The positions of the fractions on a parallel developed plate were determined; the TLC plates were attached directly to the MALDI target using double-sided adhesive tape or the strip cut from TLC plate. Different matrices were tested.

Phytochem. Anal. 20, 511-515 (2009). Bioautography of alpha-D-glucosidase (1) and beta-D-glucosidase (2) in buffer solution (sodium acetate 4.1 % in water pH=7.5) sprayed onto a silica gel plate. Incubation at room temperature for 60 min for (1) and at 37 °C for 20 min for (2). For detection of the active enzyme, solutions of 2-naphthyl-alpha-D-glucopyranoside or 2-naphthyl-beta-D-glucopyranoside and Fast Blue salt were mixed at a ratio of 1:1 for (1) or 1:4 for (2), and sprayed onto the plate to give a purple background coloration after 2-5 min. Methanol extracts of the aerial parts of Tussilago farfara and Urtica dioica were tested as enzyme inhibitors and visualized as white spots on the TLC plates.