J. Chromatogr. 589, 390-393 (1992). TLC on silica with a) chloroform - methanol 8:2, and b) chloroform - methanol - acetic acid 80:20:2. Detection by immersing in 4-methoxybenzaldehyde solution and heating at 130 °C for 2 min. Quantification by fluorodensitometry at 366 nm.

J. Planar Chromatogr. 18, 423-426 (2005). HPTLC of antibiotics (sulfadimidine, sulfadiazine, sulfaguanidine, trimethoprim) on silica gel without chamber saturation in a twin-trough chamber with chloroform - methanol 89:11. Quantification by videodensitometry at 254 nm. Limit of detection was 0.05 µg per spot for sulfadimidine, sulfadiazine, and sulfaguanidine, and 0.1 µg per spot for trimethoprim.

J. Planar Chromatogr. 28, 12-16 (2015). HPTLC of acrylic acid (as trans-cinnamic acid after labeling through a coupling reaction with iodobenzene at 60 ºC for 30 min) in water samples on silica gel with chloroform - methanol - acetic acid mixture 90:10:1. Quantitative determination by absorbance measurement at 254 nm. The hRF value for labeled acrylic acid was 47. Linearity was between 0.1 and 1 mM. The intermediate precisions were below 1.2 % (n=3). The LOD for the labeled acrylic acid was 0.1 nmol. Recoveries were in the range of 97-103 %.

Chinese J. Environ. Chem. (Huanjing Huaxue) 12, 225-230 (1993). TLC of 7 dyes on silica with 14 different solvent systems (two for each dye). Identification by comparison colors and Rf values with those of standards. Confirmation and quantification by HPLC.

J. Planar Chromatogr. 18, 388-390 (2005). TLC of haloperidol and metabolites on RP-18 previously equilibrated for 30 min with methanol containing 0.001 % triethylamine at 27 +/- 1 °C (room temperature). Detection by treatment with iodine vapor. Quantitative determination at 230 nm.

CBS 113, 5-7 (2014). HPTLC/AMD as a screening method to identify previously unconsidered_x000D_
substances. HPTLC of water samples on silica gel LiChrospher in the AMD 2 with a 25-step gradient, starting in the isocratic mode with 5 steps acetonitrile – dichloromethane 1:1 for focusing, followed by 15 steps from acetonitrile – dichloromethane 1:1 to dichloromethane and then 5 steps from dichloromethane – n-hexane 4:1 to n-hexane. Final migration distance 80 mm. Detection under UV 254 nm, UV 366 nm and white light. Densitometric evaluation by absorbance measurement at 190, 200, 220, 240, 260, 280, and 300 nm. Target zones were eluted with the TLC-MS Interface offline with water – acetonitrile 1:1 and deuterium oxide – acetonitrile 1:1, respectively, each with an addition of 5 mmol/L ammonium acetate, at a flow rate of 0.2 mL/min using the oval elution head (4 x 2 mm) for analysis with a QTOF/MS. With the molecular formula information, different databases were searched and H/D exchange (replacing protons in the molecule by deuterium which leads to a mass shift in the ESI MS spectra) was used to reduce the quantity of possible structures.

J. Liquid Chromatogr. 17, 151-156 (1994). HPTLC of N-methyl carbamate insecticides on silica; with toluene - acetone 4:1 for carbaryl, carbofuran, methiocarb; with hexane - acetone - chloroform 75:15:10 for propoxur. Detection by dipping first into KOH in methanol and then into a freshly prepared solution of 25 mg p-nitrobenzene-diazonium fluoborate in 90 mL acetone plus 10 mL of diethylene glycol. Quantification by densitometry at the wavelengths of maximum absorbance for each compound, as determined from the in-situ spectra recorded from 400-700 nm.

J. Planar Chromatogr. 18, 108-111 (2005). TLC of josamycin, sulfamethoxazole, carbamazepine, diclofenac, and iopromide after SPE on RP-18 with acetonitrile - water - acetic acid 5:5:2. Quantiative determination by absorbance measurement at 220 nm. Detectability of substances was lower than 1 µg (1.25 µg for sulfamethoxazole) per applied sample. The water was contaminated with all five drugs, concentrations found ranged from 0.017-1.314 µg / L water.