J. of Plant Physiology 133, 299-303 (1988). TLC of cynamide and its metabolites on silica with acetonitrile - NH3 (25%) 95:5 and butanol - acetic acid - water 4:1:1.

Chinese J. Chromatogr. (Sepu) 14, 317-318 (1996). TLC on silica with dichloromethane - methanol 10:1. Detection by exposure to iodine vapor. Identification of dichloroacetamide compounds by comparison of the Rf values.

Part A. Elsevier Scientific Publishing Comp. 4, (1982). Chapter 3. Thin-layer chromatography of biogenic amines. TLC is an important technique for the analysis of biogenic amines. It plays an adjunctive role as a separation technique when biogenic amines are analyzed by fluorescent, mass spectrophotometric, radioenzymatic and radiochemical methods. The new technology associated with HPTLC, e.g. preformed multichannel plates improves the efficiency and specificity of radioenzymatic assays. The new technology of HPTLC, the convenience of scanning densitometers, the increasing sophistication of sample application and TLC plate development have given renaissance to the analytical technique of TLC.

J. Chromatogr. 307, 145-153 (1984). Activated (+)- and (-) benzoxaprofen are both shown to be very sensitive and stable chiral fluorescence markers, applicable to thin-layer chromatography as well as to high-performance liquid chromatography. TLC on silica with a) toluene - dichloromethane-THF 5:1:1; 2) toluene-chloroform - THF 5:4:1. Detection by in situ fluorometry (excitation wavelength at 313 nm).

J. Planar Chromatogr. 3, 81-82 (1990). TLC of putrescine, spermidine, spermine and histamine (as hydrochlorides) on alumina with chloroform - triethylamine 4:1 as optimum system. Prechromatographic in situ derivatization of the samples; dansylation after addition of a saturated aqueous solution of Na2CO3 with 100 µL of dansylchloride in acetone (2.7 mg/mL). Detection and evaluation by densitometry. Easy and reproducible TLC method with high sensitivity for histamine determination.

J. Chromatogr. B 705, 269-275 (1998). TLC of oleyl anilide from a mixture of oleic acid and aniline on silica gel with 1) petroleum ether - ether - acetic acid 75:5:1, 2) hexane - ether - methanol - acetic acid 90:20:5:2, 3) petroleum ether - ethyl acetate 4:1 containing 1% NH3. Detection by exposure to iodine vapor. Quantitation by HPLC.

Asian J. Chem. 20(7), 5409 - 5413 (2008). HPTLC of atomoxetine HCl on silica gel with acetonitrile - acetic acid 9:1. Quantitative determination by absorbance measurement at 269 nm. The method was linear in the range of 100-1000 µg/mL. The recovery was 99.8 %. The method was suitable for routine analysis of atomoxetine HCl in its pharmaceutical preparations.

62nd Indian Pharmaceutical Congress Abstract No. F-253 (2010). TLC of ambroxol hydrochloride and doxophylline on silica gel with n-butanol – toluene – ethyl acetate – 25 % ammonia 50:30:20:1. The hRf values were 36 and 45 for doxophylline and ambroxol, respectively. Quantitative determination by absorbance measurement at 258 nm. The method was linear in the range of 300-1100 ng/band for ambroxol and 100-1100 ng/band for doxophylline.