Biochemical Systematics and Ecology 22, 31-41, (1994). Separation of carotenoids on silica with acetone - hexane in different proportions. Preparative TLC on silica with the same hexane - acetone mixtures.

J. Planar Chromatogr. 8, 463-466 (1995). TLC of chlorides or nitrates of copper, cadmium, zinc, nickel, cobalt and lead on silica with 1.0 M sodium formate - 1.0 M potassium iodide 1:9. Detection with 0.1% dithizone in carbon tetrachloride (Zn, Cd, Pb), with 1% dimethylglyoxime in ethanol (Ni, Co), with 1% aqueous solution of potassium ferrocyanide (Cu). Titration resp. AAS determination after elution. The titrimetric determination is considered as useful for the quantification of Cu in the concentration range 100-500 µg/µl whereas AAS was useful for determination of Cu at concentrations in the range 2-8 µg/mL.

Biochemical Systematics and Ecology 25, 611-617 (1997). TLC of flavonoids from B floydii and from B. medicinalis on silica gel with hexane - ethyl acetate 1:1.

J. Planar Chromatogr. 18, 248-251 (2005). TLC of 14C-labeled pesticides (metribuzin, linuron, isopropylanilin, bentazon, metamitron, MCPA, mecoprop, isoproturon, MD-IPU, diuron, diazinon, simazine, 2,4-dichlorophenoxyacetic acid, chlorsulfuron, metsulfuron-methyl, thifensulfuron-methyl, tribenuron-methyl, triazinamine, methyl-triazinamin, terbutylazine) on silica gel and RP-18 in horizontal chamber with isopropanol - ethyl acetate - acetic acid 30:70:0.1, isopropanol - ethyl acetate - hexane - acetic acid 10:40:50:0.1 and 30:40:30:0.1, isopropanol - hexane - acetic acid 30:70:0.1, hexane - diethyl ether 1:1, methanol - water 3:2, methanol - water - acetic acid (pH 3) 3:2, methanol - water - ethyl acetate 13:5:2, acetonitrile - water 3:2, acetonitrile - water -phosphoric acid (pH <2) 1:9. After development the plates were exposed to a phosphor screen for 24 hours and analyzed by use of a Cyclone storage phosphor system.

Microbiol. Res. 163, 161-167 (2008). Test solutions containing 0.25 to 64 µg of norharmane, quinine, and tetracycline (as bases and hydrochloride salts) were applied as 10 mm bands on silica gel plates. After coating the plate with a concentrated suspension of the living cyanobacterial test organism (spraying or dipping), it was kept moist in a TLC chamber at 27 ºC for 1 to 2 days under continuous illumination (25 - 30 µmol photon/m2s). Cytotoxic concentrations of a test compound resulted in an easily recognizable regional decolourisation of the test organism.

J. Liq. Chromatogr. Relat. Technol. 33, 880-893 (2010). TLC of 6 carboxamide fungicides and 11 phenylbenzamide derivatives on silica gel and aluminium oxide impregnated by overnight predevelopment in n-hexane - paraffin oil 19:1 with mixtures of methanol - water, acetonitrile - water, tetrahydrofurane - water, and acetone - water with the concentration of organic modifier varying in steps of 5 %. Detection under UV light. The RMO and b values related to the molecular lipophilicity and to the specific hydrophobic surface area (b) of the solutes were calculated separately for each RP-TLC system and for each analyte. The correlations between the physicochemical parameters measured were calculated by linear regression analysis.

J. AOAC Int. 93, 1748-1756 (2010). TLC of 35 pesticides on silica gel with ethyl acetate - n-heptane 2:3 in a horizontal chamber. Quantitative determination by absorbance measurement in the range of 200 to 360 nm using a DAD densitometer. The identity of the analytes was confirmed by UV spectra comparison of samples and standards. LOD and LOQ were 230 and 700 ng/zone for clofentazine and 160 and 490 ng/zone for chlorfenvinphos. These two pesticides were detected with the highest frequency in water samples.

J. Planar Chromatogr. 27, 240-244 (2014). HPTLC of sulfide ions derivatized with 4-[p-,Ndimethylamino) phenyl]-2,6-diphenylpyrylium cations (25 μmol) in acetonitrile) on silica gel with a mixture of phosphoric buffer (pH 3.0) - propan-2-ol - acetonitrile 8:8:1. Quantitative determination by scanning and image analysis. The hRF values for thyopyrylium and the derivatization reagent were 73 and 54, respectively. Linearity was in the range of 40-500 pmol/zone. The intermediate/interday/intra-day precisions were below 2 % (n=9). The LOD and LOQ were 11 and 33 pmol/zone, respectively. Recovery was between 98 and 108 %.