Selected application: lower alcohols, tryptophan enantiomers, gold and platinum. J. Chromatogr. A 746, 261-268 (1996). TLC of lower alcohols on cellulose with butanol - NH3 30 % 1:1. Detection by spraying with 5% NiSO4. TLC of tryptophan enantiomers on cellulose with 1M NaCl and 40 mM a-cyclodextrin solution at 7°C. Detection by exposure to iodine vapor. TLC of gold and platinum on cellulose with 2.5 M HCl. Detection by spraying with 1M Na2S. Quantification by videodensitometry. Comparison with previous TLC method.

Chromatographia 53 (5/6), 321-322 (2001). TLC on silica gel with toluene - acetone - methanol - NH3 50:30:5:1. Quantitation by slit scanning densitometry at 312 nm and video densitometry at 366 nm. Comparison of the results obtained by the two methods.

J. Planar Chromatogr. 17, 164-168 (2004). HPTLC of flupirtine maleate on silica gel with ethyl acetate - methanol - 25 % ammonia 17:2:1 in a saturated developing chamber. Then the developed plate must be dipped for 2 s in 1:3 paraffin - hexane. Dipping increases the fluorescence tenfold and preserves the fluorescence stability for hours. Presentation of a new formula for transforming fluorescence measurements in accordance with Kubelka-Munk theory. The fluorescence signals, the absorption signals, and data from a selected reference are combined in one expression. Only diode-array techniques can measure all the required data simultaneously. The fluorescence calibration curve was linear over the range 300 to 5000 ng per spot.

J. Chromatogr. 405, 203-211 (1987). Description of a new method for visualizing TL chromatograms by means of liquid crystal detectors. Mapping the chromatograms by transferring the organic substances from the plates to liquid crystal layers. Demonstration of the usefulness of the detectors for pesticides.

J. Planar Chromatogr. 10, 225-228 (1997). TLC of test dye mixtures on silica. Documentation by combination of computer, scanner, inexpensive printer, color ink-jet printer, and a digital color thermal printer resulting in a very rapid, very inexpensive, and accurate documentation of TLC separations in the form of monochrome or color images.

J. High Resol. Chromatogr. 5, 590-591 (1982). Development, of a reference plate technique which enables: 1) the sensitivity of a scanning densitometer to be constantly reset within a few percent of any desired value. 2) The excitation wavelength of the mercury discharge source to be conveniently maximized for sample emission. 3) Impending failure of the source to be detected.

LXX. Synthesis of oligodeoxyribonucleotides from 3'-0-formyl-(N- acyl)-2'-deoxyribonucleosides using o-chlorophenylphosphoditriazolide and / or methyl phosphodichloridite. Removal of methyl group from phosphotriester by the action of aqueous pyridine. Coll. czechoslov. chem. comm. 48, 1323-1332 (1983). TLC of the title compound on silica with a) chloroform - methanol 9:1, b) 2-propanol - NH3 - water 7:2;1, c) chloroform - methanol 85:15.

J. Chromatogr. Sci. 24, 525-531 (1985). Description of basic steps of the TLC process and brief introduction to instrumentation currently available to increase sample throughput and enhance sensitivity, reproducibility and reliability: sample preparation, sample application, robotics, development, quantification including list of suppliers.