CBS 106, 5-6 (2011). HPTLC on 1) ProteoChrom silica gel with 2-butanol – pyridine – ammonia 25 % – water 39:34:10:26; on 2) ProteoChrom cellulose with 2-butanol – pyridine – acetic acid – water 15:10:3:12 by two-dimensional development and on 3) silica gel with the developing solvent from 2). Detection by spraying with ninhydrin, fluorescamine, or triethylamine reagent. Evaluation under daylight and UV 366 nm. Detection by mass spectrometry by scanning the plate with a self modified desorption electrospray beam. In one-dimensional HPTLC up to 20 bands can be separated. By two-dimensional separation this number can be increased. Particularly suited are cellulose HPTLC plates.

Clin. Chem. 29, 744-745 (1983). TLC of amino acids on cellulose with butanol - formic acid -water 12:3:5. Detection with ninhydrin.

J. Liquid Chromatogr. 6, 109-122 (1983). TLC of 24 amino acids on stannic tungstate with a) butanol (saturated with water)- acetic acid 3:1, b) acetone - formic acid-water 2:2:1. Detection with 0.2 % ninhydrin in butanol.

Merck Spectrum 1989 18-19. HPTLC of D-tryptophan and L-tryptophan on „chiral“ silica (converted with C-18 silane and impregnated with copper salt and the „chiral selector“) with methanol – water acetone 50:50:30. Detection by spraying with ninhydrin followed by heating at 120°C for 5 min. Quantification by densitometry at 510 nm.

J. Chromatogr. B 668, 1-11 (1995). Identification of two proteins, which are bound to Jacalin, by SDS-PAGE. Discussion of the retention and some features of the proteins. It was shown that Jacalin also binds several proteolytic enzymes which remain to be identified.

J. Planar Chromatogr. 20, 173-177 (2007). TLC of seven amino acids (alanine, asparagine, cysteine, leucine, phenylalanine, serine, threonine) on microcrystalline cellulose with butanol - glacial acetic acid - water 60:19:21. Detection by spraying with 3 % ethanolic ninhydrin solution and heating. The performance of this mobile phase was confirmed experimentally. Optimization by use of the experimental design software packages Design-Expert 6 and Statistica.

J. Planar Chromatogr. 23, 260-264 (2010). TLC of 15 amino acids on silica gel and alumina (with or without impregnation) with micellar solutions of cetrimide and cetylpyridiniun chloride and aqueous solutions of dextrose with chamber saturation for 10 min. A TLC system comprising of silica gel impregnated with micellar solution of cetrimide (5.0 mM) as stationary phase and 40 % aqueous solution of dextrose as mobile phase was best suitable for the separation of amino acids. Detection by spraying with 0.3 % ninhydrin solution in acetone and heating for 15-20 min at 60 °C.

CBS 111, 5-6 (2013). HPTLC of caffeine, taurine, and arginine in shampoo samples extracted with isopropanol, on silica gel over 50 mm with isopropanol - n-heptane - water 7:3:1 for caffeine and isopropanol - water 4:1 for arginine and taurine. Detection under UV 254 nm (caffeine) and after spraying with ninhydrin reagent under white light (arginine and taurine). Quantitative absorbance measurement at UV 254 nm for caffeine and UV 600 nm for arginine and taurine. The hRF of caffeine was 54. Precision (%RSD) for the polynomial calibration of caffeine was 3.9 % (n=3). The hRf of taurine was 24. Arginine remained at the start position under these conditions. The content of taurine and caffeine found in shampoos corresponded to the usual amount of 0.1 % active ingredient in a formulation.