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.

J. Liqu. Chromatogr. 23, 579-586 (2000). HPTLC of benzo[a]pyrene on hydrocarbon impregnated RP-18 plates with methanol - acetonitrile 1:1. Quantification by densitometry at 370 nm.

J. Chromatogr. A 1519, 121-130 (2017). Development of an approach to create inhibition chromatograms from the images, which are employed to detect the effect in effect-directed analysis (EDA) with HPTLC, by using the example of the HPTLC-bioluminescence inhibition test. Determination of 50 % effect concentration (EC50) value from the dose-response relationship to describe the strength of the effect, where the known application volumes, instead of the concentration, are used, because the inhibiting compounds are generally unknown and thus their concentrations are also unknown. This enables the calculation of the application volume necessary to achieve 50 % inhibition. Introduction of a new value for comparing effects referred to as reciprocal iso-inhibition volume (R/V), which is used to compare inhibition bands within and between plates. Description of the entire evaluation by the means of two samples from a contaminated site using the HPTLC-bioluminescence inhibition assay.

Rev. Anal. Chem. 14, 75-142 (1995). A review with many references on the principles, procedures, and equipment for the application of TLC in environmental analysis, including examples of the determination of a number of types of analytes in a variety of samples, such as waters, soils and airborne particulates.

J. Planar Chromatogr. 20, 321-326 (2007). Investigation of factors affecting the separation, including the use of different stationary and mobile phases, different methods of development, humidity, and chamber saturation. TLC and HPTLC of dimethyl, diethyl, di-n-butyl, and bis-(ethylhexyl) phthalate on silica gel, prewashed with chloroform - methanol 1:1 or the mobile phase, in horizontal chambers, Vario chambers, and twin-trough chambers with 12 different mobile phases. Best separations were achieved with hexane - acetone 4:1 or hexane - toluene - ethyl acetate 9:8:3. Densitometric evaluation at 220 nm.

J. Chromatogr. A 1497, 155-163 (2017). Development of a planar yeast estrogen screen for the determination of estrogen active compounds. Introduction of resorufin-β-D-galactopyranoside, providing the orange fluorescing resorufin after enzymatic cleavage, as the planar yeast estrogen screen (pYES) substrate to determine estrogen active compounds (EAC). For samples containing blue fluorescent components, this substance is better suited than the generally employed substrate 4-methylumbelliferyl-β-D-galactopyranoside, which delivered blue fluorescing 4-methylumbelliferone after enzymatic cleavage by the YES reporter β-D-galactosidase. The mean LOD and LOQ was 3.5 and 6.5 pg/zone for 17β-estradiol (1) and 17α-ethinylestradiol (2), respectively; recoveries were close to 100% for (1) and (2) from spiked water samples in a concentration range of 2–20 ng/L.

J. Planar Chromatogr. 8, 75-77 (1995). TLC of azaarenes (i.a. acridine, benzo(h)quinoline, benzo(f)quinoline, phenanthridine, azafluorene) on silica with dichloromethane - methanol 20:1. Detection under UV 254 and 265 nm, followed by spraying with specific reagents for detection of functional groups. GC-MS after elution with dichloromethane - methanol 1:1.

J. Planar Chromatogr. 19, 129-134 (2006). HPTLC of enrofloxacin, oxytetracycline, and trimethoprim on cyano phases with 0.5 M oxalic acid - methanol (5:5; 6:4; 7:3; 8:2). Detection under UV light at 254 nm. Quantitation by videodensitometry at 254 nm.