Rapid Commun. Mass Spectrom. 34, 8755 (2020). HPTLC of a synthetic formulated gasoline (diluting polypropylene glycol and polyisobutylene succinimide polyamine surfactant at a mass ratio of 1 % in gasoline) on silica gel with methanol - toluene 2:3. Detection under UV light. Samples were scratched for analysis by atmospheric solids analysis probe mass spectrometry (ASAP-MS).

J. Planar Chromatogr. 33, 329-340 (2020). Review of analysis of heavy metal ions by TLC, including micellar, soil and reversed-phase TLC between 2000 and 2019. The review highlighted the better performance of micellar TLC and the use of cationic and anionic surfactants.

J. Planar Chromatogr. 10, 358-361 (1997). TLC of seven PAHs (7-, 8-hydroxy-, trans-7,8-, trans-9,10-dihydroxybenzo(a)pyrene, benzo(a)pyrene, 1,2,5,6-dibenzanthracene, chrysene) on cellulose acetate with various solvent systems and application of principal-components analysis (PCA) to the experimental results in order to find the optimum solvent system for the separation of the hydrocarbons of interest.

CBS 88, 12-13 (2002). TLC of waste water samples or spinach extract on silica gel. Selective detection of bioactive compounds by dipping in suspension of luminescent microorganisms (Vibrio fischeri). Visual detection of substance zones by reduced luminescence.

Sci. Cult. 74 (1-2), 22-30 (2008). Bio-organic molecules such as oxygenated dibenzo-a-pyrones, their aminoacyl conjugates, and polyprenylbenzo-quinones have earlier been reported as transducers of energy in animals and human cells and were now found in four samples of meteorites. HPTLC on silica gel 60 with 1) n-butanol - acetone - acetic acid - water 7:7:2:4 for amino acids, followed by detection with ninhydrine reagent and densitometric evaluation at 610 nm; 2) n-butanol - acetic acid - water 3:1:2 for sugars, followed by detection with p-anisidine reagent and densitometric evaluation at 380 nm; and 3) chloroform - methanol 9:1 for dibenzopyrones, followed by densitometric evaluation at 240 nm and 360 nm.

Science & Culture Jan.-Feb., 22-30 (2008). Isolation and identification of some unique chemical compounds is reported using chemical, chromatographic and spectroscopic methods such as GC-MS, HPTLC and HPLC. The presence of bio-organic molecules such as oxygenated dibenzo-a-pyrones (DBPs), their amino acyl conjugates (DCPs) and polyphenyl benzoquinones (PBQs) was observed in all the four samples of meteorites. HPTLC on silica gel with 1) n-butanol - acetone - acetic acid - water 7:7:2:4 for amino acids, detection with ninhydrine reagent and absorbance measurement at 610 nm; 2) n-butanol - acetic acid - water 3:1:2 for sugars, detection with p-anisidine reagent and absorbance measurement at 380 nm; 3) chloroform - methanol 9:1 for DBPs and absorbance measurement at 240 nm and 360 nm.

CBS 112, 5-7 (2014). HPTLC-AMD of sediment samples and standards 17α-ethinylestradiole, 17ß-estradiole, estrone and bisphenol A on silica gel with a two step gradient, first step with methanol to 20 mm, second step with ethyl acetate - n-hexane 1:1 to 80 mm. Detection with the p-YES-bioassay by dipping in yeast cell suspension (the cell number of the genetically modified yeast strain (Saccharomyces cerevisiae BJ3505) was determined by photometry and diluted to 150 ± 50 Formazin Attenuation Units) followed by incubation for 3 h at 30 °C in a saturated steam atmosphere. Then the enzyme substrate solution (0.5 mg/mL 4-methylumbelliferyl-ß-D-galactopyranoside solution) was sprayed on the TLC plate followed by a second incubation for 30 min at 37 °C. Detection under UV 254 nm and quantitative fluorescence measurement at UV 320/>400 nm. Two blue fluorescent zones with estrogenic activity were detected at hRF 65 and 80.