J. Planar Chromatogr. 1, 116-122 (1988). Reversed- phase TLC of 23 ecdysteroids on 3 different types of octadecyl-bonded silica and on a cyanopropyl bonded silica with methanol - water based solvent systems. Discussion of the differences in chromatographic selectivity between the various TLC plate types and the effect of various functional groups on the chromatographic properties of the ecdysteroids.

J. Liq. Chrom. & Rel. Technol. 26, 2629-2649 (2003). Review of planar chromatography of ecdysteroids. Separation of various ecdysteroids is detailed using both straight-phase and reversed-phase thin-layer chromatography. The generally used special techniques, such as two-dimensional TLC, forced-flow TLC, displacement mode of development, etc., are also specified. The particular behavior of certain ecdysteroids is discussed. Materials and methods frequently used for ecdysteroid separation are described like e.g. stationary phases, mobile phases, detection methods, screening and identification of plant ecdysteroids, analysis of 20-hydroxyecdysone through the vegetation of plants, lipophilicity of ecdysteroids, analysis of ecdysteroids on RP-TLC plates, FF-TLC, AMD, 2D-TLC, displacement TLC, and hyphenated techniques.

(Wib.). Chromatographia 25, 627-630 (1988). TLC on silica with ethyl acetate - methanol - NH3 85:10:5. Detection under UV 254 nm; densitometry. TLC method used for monitoring the isolation of ecdysteroids by CC and droplet countercurrent chromatography (DCCC) and for controlling the homogeneity of pure products.

J. Planar Chromatogr. 17, 335-341 (2004). TLC and HPTLC of 29 ecdysteroids (e. g. 20-hydroxyecdysone, polypodine B, 2-deoxyintegristerone, ajugasterone C, isovitexirone, muristerone A, turkesterone, makisterone C, rubrosterone, poststerone, ecdysone, herkesterone) on silica gel, RP-18, and cyano phase with four mobile phases enabling separation of all the ecdysteroids from each other in at least one system. Detection under UV light at 254 nm or by use of vanillin-sulfuric acid spray reagent. After spraying the spots were either observed in daylight or at 366 nm. Quantitative determination by reflectance-absorbance measurement at 254 nm.

J. Chromatogr. 411, 379-392 (1987): TLC of ecdysone 22-acyl esters on silica and ethyl-, octyl-, octadecyl- and cyano-bonded silica with solvent systems of different polarity. Detection by fluorescence quenching under UV 254 nm and by spraying with vanillin - sulfuric acid and heating at 110°C for 5 min. Evaluation of various types of TLC systems. Radioscanning.

J. Liq. Chromatogr. & Relat. Technol. 29, 2095-2109 (2006). Analytical and preparative TLC of ecdysteroids (e. g. dacryhainansterone, 20-hydroxy-ecdysone) on silica gel in unsaturated glass chambers with dichloromethane - methanol - benzene 25:5:3 and ethyl acetate - 96% ethanol - water 16:2:1. Detection under UV 254 nm or by spraying with vanillin-sulfuric acid reagent, followed by detection under white light and under UV 366 nm. Densitometric absorbance measurement at 254 nm.

J. Chromatogr. 438, 419-422 (1988).Reversed-phase and normal phase HPTLC of a number of ecdysteroids on octadecyl-bonded silica and silica with methanol - water systems. Detection by fluorescence quenching under UV 254 nm. Discussion of the effects of varying the water content on Rf values of ecdysone and 20-hydroxyecdysone on both layers.

Cortison, Cortisonacetat, Dexamethason (Betamethason), Hydrocortison, Hydrocortisonacetat, Prednison, Prednisolon, Testosteronpropinat, Triamcinolon, Triamcinolonacetonid. Steroidhormone derivatives. Cortisone, cortisone acetate, dexamethasone (betamethasone), hydrocortisone, hydrocortisone acetate, prednisone, prednisolone, testosterone propionate, triamcinolone, triamcinolone acetonide.) (German). Deutsche Apotheker Zeitung 129, 1538-1539 (1989). TLC purification of steroidhormone derivatives on silica with dichloromethane - acetone 75:25. Detection under UV 254 nm or by spraying with 20% sulfuric acid in ethanol followed by heating at 110°C for 10 min.