J. Planar Chromatogr. 17, 84-88 (2004). OPLC of trans-resveratrol on silica gel with chloroform - methanol 10:1 after preconditioning of the plates for 3 h at 120 °C. Detection by immersion of the dried plates in a bacterial suspension (Pseudomonas savastanoi pv. phaseolicola race 6) for 20 s and MTT staining (3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide; 80 mg MTT and 100 mg Triton X-100 in 100 mL water) either after a short draining period or after overnight incubation; after staining the time for evaluation varied (e. g. from 1 h to 6 - 9 days or more). First results of the investigation of a complex bioautographic system with special emphasis on the direct effect of the antibiotic trans-resveratrol (fitoalexin) and the function of formaldehyde in relation to antibiotics.

Food Control. 34, 138-148 (2013). TLC was reviewed as a fast screening methodology for the determination of deoxynivalenol (DON) showing LOD in rice of 100 mg/kg. 2D-TLC on silica gel with dichloromethane - ethyl acetate - propan-2-ol 18:1:1 and toluene - ethyl acetate - formic acid 6:3:1 for the first and second runs, respectively. Detection by spraying with chromotropic acid, followed by heating at 110 °C for 5 min. Quantitative determination by absorbance measurement at 366 nm. The hRf values of DON were 13 and 20. Advantages and disadvantages of current methods as well as comparison with other techniques were also described for the effective monitoring and surveillance of DON and its derivatives.

J. Agric. Food Chem. 65, 8773-8778 (2017). HPTLC of aflatoxin B1 on silica gel with chloroform – ethyl acetate 4:1. Quantitative determination by fluorescence measurement at 366/>400 nm.

Budapest Chromatography Symposium, June 13, 1985. Two-dimensional TLC on silica with 1) isopropanol - water - NH3 3:2:1, 2) isopropanol - water - triethylamine 3:2:1. Detection with orcinol-ferrichloride-sulfuric acid reagent. Partial hydrolysis of endotoxins with mild acids cleaves off non-toxic but beneficially active fragments. Fractionation of these components by TLC combined with high-voltage electrophoresis. In the first dimension TLC with isopropanol - acetic acid - water 5:1:5, followed by electrophoresis in pyridine - acetic acid - water 6:5:90 buffer.

J.A.O.A.C. 68, 839-842 (1985). TLC of mycotoxins with 2-dimensional chromatography using various solvent combinations on silica. Detection by viewing under longwave UV followed by using various spray reagents, i.a. 3-methyl-2-benzothiazoline hydrazone hydrochloride solution, Pauly 5 reagent, ethanolic aluminium chloride, Ehrlichs reagent, sulfuric acid, etc. Patulin, kojic acid, penicillic acid, sterigmatocystin, cyclopiazonic acid, trichothecenes, tenazonic acid.

Acta Alimentaria 16, 105-110 (1987). TLC of F-2 toxin on silica with chloroform - ethanol 97:3 or toluene - ethyl acetate - chloroform 95:55:50. Detection by spraying with 1 % 4- methoxy- benzene - diazonium-f luoroborate (Sarudi reagent) and heating for 10 min. at 110 °C. Spots of zearalenone (6- (10- hydroxy -6-oxo- trans-1- undecenyl)- beta - resorcylic acid lactone) turned into red-brown. Recoveries of zearalenone added to soymeal: 83.2 % ± 3.2 (100 mg/kg added), 84.6 % ± 3.8 (200 mg/kg added).

Magyar Allatorvosok Lapja 43, 337-340 (1988). TLC of deoxynivalenol on silica with chloroform - methanol 8:2. Visualization by spraying with AlCl3•6H2O in ethanol - water 1:1 and heating at 110 °C for 10 min. Sensitivity of the method 200 µg toxin/kg feedstuff. Detection limit: 20 ng/spot.

Elelmezési Ipar 43, 298-299 (1989). Determination of zearalenone in meat a) with OPTLC on silica with petrol ether - ether 1:1 and chloroform - ethanol 95:5 and b) with two-dimensional TLC on silica with chloroform - acetone 9:1. Detection under UV 254 nm and 366 nm and by spraying with Sarudi reagent (2% 4-methoxybenzene - diazo nium fluoroborate solution).