PLoS ONE 18(11), e0294054 (2023). Sample was a pigment extracted with methanol from cell pellets of Serratia marcescens strain BRL41 (Yersiniaceae). TLC on silica gel with ethyl acetate. Detection under daylight. The pink pigment had the same hRF value (87) and colour as prodigiosin from standard strain ATCC-13880.

Heliyon 6(8), e04654 (2020). HPTLC of ethanolic extracts of three algae (100µg/band) on silica gel, along with carotenoid standards (10µg/band), developed with toluene – acetone 7:3. Detection under white light. Carotenoids appeared orange or yellow, chlorophylls green, pheophytins dark khaki. Carotenoid patterns of the algae were very different depending on the family: red alga Eucheuma denticulatum (Solieriaceae) contained mainly zeaxanthin and lutein (hRF 44) and β-carotene (hRF 88), but also β-cryptoxanthin (hRF 69-71) and fucoxanthin (hRF 39); brown alga Sargassum polycystum (Sargassaceae) contained mainly fucoxanthin, and also cryptoxanthin; green alga Caulerpa lentillifera (Caulerpaceae) contained mainly zeaxanthin, but also astaxanthin (hRF 61) and canthaxanthin (hRF 77) in smaller amounts. Separately, HPLC-MS was used to confirm and quantify these compounds, which was necessary for carotenoids with similar hRF values: zeaxanthin and lutein (hRF 44), and β-carotene and lycopene (hRF 88).

J. Planar Chromatogr. 24, 201-205 (2011). TLC of sixteen porphyrins on RP-18 with methanol or methanol - chloroform 4:1 with chamber saturation for 30 min at room temperature. Detection by visual identification. Determination of the experimental log P using RP TLC together with the use of log PRekker, which was calculated on the basis of fragmentation constants available in the literature.

J. Chromatogr. 609, 341-347 (1992). Determination of the Rf values of 12 synthetic porphyrins and their copper complexes on silica and RP-18 silica with different developing solvents. Discussion of the mobility of the compounds on different adsorbents.

J. Planar Chromatogr. 18, 400-402 (2005). HPTLC of beta-carotene on silica gel and RP-18 with preadsorbent sample-application zones (prewashed with dichloromethane - methanol 1:1) with petroleum ether (35-60 °C) - acetonitrile - methanol 1:2:2 or petroleum ether (20-40°C) - acetone 7:3. HPTLC of biliverdin on silica gel with n-butanol - methanol - water 4:2:3. Quantitative determination by absorbance measurement at 628 nm.

Chromatographia 18, 441-444 (1984). Studies on the migration behaviour of metal complexes of meso-tetrakis (p-tolyl) porphyrin in HPTLC systems with cellulose and silica gel and various solvents of relatively low polarity. TLC on silica with a carbon disulfide - m-xylene mixture is recommended for the separation of the complexes.

J. Chromatogr. 603, 213-234 (1992). TLC of six synthetic porphyrins on silica plates with or without fluorescence indicator with m-xylene. Detection by densitometry at 400 nm. Discussion of the influence of the fluorescent indicator on TLC behavior. The zinc complex formation is attributable to the reaction of porphyrin with the zinc compound contained as the fluorescent indicator.

J. Planar Chromatogr. 19, 146-150 (2006). Comparison of the chromatographic behavior of twelve long-alkyl-chain derivatives of tetraphenylporphyrines on alumina and silica gel normal and reversed-phase TLC using several different organic mobile phases. TLC of 12 derivatives of tetraphenylporphyrins on alumina with dichloromethane - cyclohexane 3:7 and 7:13, on silica gel with chloroform - pentane 13:27, chloroform - hexane 9:11, dichloromethane - hexane 11:9, chloroform - cyclohexane 19:21, and dichloromethane - cyclohexane 11:9, and on RP18 with 7 mobile phases. Visual detection of spots.