J. Planar Chromatogr. 21, 143-149 (2008). RPTLC method for parallel estimation of the lipophilicity of chemically diverse neutral compounds or weak acids and bases. TLC of 28 drugs on RP-18 prewashed with methanol and heated at 160 °C for 1 h, with mixtures of water with methanol, ethanol, 1-propanol, acetone, acetonitrile, and 1,4-dioxane in a saturated chamber. Acetone - water 9:11 and 3:2 were best suited. Densitometric evaluation at 200 and 254 nm.

J. Chromatogr. 575, 325-330 (1991). TLC of 7-hydroxycoumarin on silica with the lower phase of chloroform - water - ethyl acetate - acetic acid 48:24:12:1. Quantification by fluoro densitometry at 313 nm. Detection limit, 1 ng/mL. Comparison with a spectrofluorometric method.

60th Indian Pharmaceutical Congress PA-194, (2008). HPTLC of bumetanide on silica gel with toluene - ethyl acetate - formic acid 14:7:1. Quantitative determination by absorbance measurement at 335 nm. In the stability test (stress conditions: acid, alkali, oxidation, dry heat, wet heat, photodegradation) the compound was well separated from degradation products. Linearity was in the range of 100 - 800 ng/spot.

J. Chromatogr. 615, 365-368 (1993). TLC of diazepam and its metabolites on silica with hexane - ether - acetic acid 80:10:10. Detection under UV 254 and 366 nm. Quantification of 2-amino-5-chlorobenzophenone and 5-chloro-2-methyl-aminobenzophenone by densitometry. Detection limits 0.5 ng/mL for both.

60th Indian Pharmaceutical Congress PA-203, (2008). HPTLC of paracetamol and nabumetone in combined tablet dosage form on silica gel with toluene - isopropyl alcohol - acetic acid 80:20:1. Quantitative determination by absorbance measurement at 236 nm. The method was linear in the range of 50-250 ng/spot for both compounds. The method was suitable for routine quality control of tablet dosage form.

Analyst 119, 2737-2741 (1994). Description of Charm Test II receptor assays and TLC-bioautography for ß-lactams, sulfonamides, (dihydro)-streptomycin and erythromycin applied to 257 bovine muscle and kidney samples, and 215 porcine muscle and kidney samples. Quantification of penicillin G by HPLC, and of sulfonamides by TLC with fluorescence densitometry. Comparison of the analysis time, operating costs, etc., of different methods.

J. Liq. Chromatogr. Relat. Technol. 31, 1892-1902 (2008). HPTLC of hydrochlorothiazide, walsartan, kandesartan, and enalapril on silica gel after chamber saturation using ethyl acetate - tetrahydrofuran - acetic acid 16:4:1 (for kandesartan and walsartan present together with hydrochlorothiazide) and 1-butanol - acetic acid - water 12:3:5 (for enalapril and hydrochlorothiazide). Quantitative determination by absorbance measurement at 252 nm for walsartan and kandesartan, at 274 nm for hydrochlorothiazide and at 208 nm for enalapril. The method was of high sensitivity and specific to analyte constituents.

J. Planar Chromatogr. 10, 90-96 (1997). The new, off line powerful combination of TLC with its simplicity, tandem mass spectrometry (MS-MS) with its specificity, and digital autoradiography (DAR) with its high sensitivity and suitability for quantification was used as a fast screening method for separation and structure identification of metabolites of deramciclane (a new anxiolytic compound). The preferred ionization technique for mass spectrometry (MS) when combined with TLC is fast-atom bombardment (FAB). TLC of deramciclane ((1R,2S,4R)-(-)-N,N-dimethyl-2-[(1,7,7-trimethyl-2-phenylbicyclo[2,2,1]-hept-2-yl)oxy]ethanamine 2-(E)-butanedionate) and metabolites on silica with butanol - acetic acid - water 4:1:1. Detection by digital autoradiography.