J. Planar Chromatogr. 24, 145-149 (2011). HPTLC of ticlopidine in the bulk drug and dosage form on silica gel, prewashed with methanol, with toluene - methanol 49:1. Quantitative determination by absorbance measurement at 240 nm. The hRf of ticlopidine was 60. Linearity was in the range 800-1500 ng/zone; the correlation coefficient was 0.999. LOD was 35 and 0.2 ng/band by peak height and peak area, respectively. Recovery was 98.5 % and 99.1 % by peak height and peak area, respectively. The inter-day and intra-day precision (%RSD, n = 3) was 0.9 % and 0.4 % via peak height and 0.6 % and 0.4 % via peak area.

Saturated heterocycles, 51. Synthesis of stereoisomeric 1,3- thiazines with condensed skeleton. Acta Chimica 118, 37-42 (1985). TLC of cis- and trans-4,5- tetramethylene-4,5- dihydro-6H-1,3-thiazines on silica with butanol - ether - acetic acid 1 0:10:1.

J. Chromatogr. 463, 229-233 (1989). TLC of sulfathiazole on silica with isopropanol - NH3 conc. 8:2. Detection by spraying with 1% sodium nitrite in 1M hydrochloric acid and 0.8% aq. ammonium sulfamate and 0.3% N-1-(naphthyl)ethylenediaminedihydrochloride in 1M hydrochloric acid. Quantification by densitometry. Also spectrometry.

Analyst 119, 2761-2764 (1994). Description of a novel approach for the screening of title compounds by using matrix solid phase dispersion, a microcolumn preconcentration and TLC detection on silica with ethyl acetate. Visualization by spraying with fluorescamine solution and under UV 366 nm. Detection limit 100 ppb. Presentation also of the results from the industrial evaluation of the complete method.

J. Planar Chromatogr. 27, 107-112 (2014). HPTLC of disulfiram on RP-18 with methanol - water 9:1. Detection by spraying with copper(II) sulfate (0.5 mol/L), followed by heating at 50 ºC for 2 min. Quantitative evaluation with an office scanner at 300 dpi followed by image processing with software. The hRf value for disulfiram was 67. Linearity was in the range of 1-10 μg/zone. The intermediate/interday/intra-day precisions were below 1 % (n=6). The LOD and LOQ were 260 and 860 ng/zone, respectively. Recovery was in the range of 92.4-102.0 %.

Anal. Biochem. 142, 163-166 (1984). TLC of organic thiosulfonates of the form RS(O2)S- on silica. Detection by spraying with FeCl3 reagent in acetone. Rf values for 3 aromatic and 6 aliphatic thiosulfonate anions and the corresponding sulfonates and sulfinates were given. With exception of the series related to cysteic acid, Rf values are always in the order RS(O2)S- > RSO3 > RSO2.

J. Chromatogr. 472, 314-317 (1989). TLC of 15 dithia[3.3]phanes on C-18 silica with methanol - water 98:2, 95:5 and 9:1, and acetonitrile - methanol 5:5. Detection under UV 254 nm. Comparison of the results with those obtained by HPLC.

J. West China Univ. Med. Sci. (Huaxi Yaoxue Zazhi) 8, 70 - 73 (1994). Use of a new stable fluorescent reagent CGE(N), for the fluorimetric detection of p-amino-salicylic acid in tablets on silica with petrol ether - chloroform - ethyl acetate 5:3:2. Quantification by densitometry at 277 nm. Detection limit 0.38 µg.