Pseudodisaccharide aminoglygosides. (Hungarian). Magyar Kémiai Folyoirat 103, 147-162 (1997). TLC on silica with hexane - ether 2:3 or 49:1, toluene - ether 9:1, chloroform - methanol 49:1, chloroform - hexane 1:1, toluene - ethyl acetate 9:1 or 24:1, toluene - methanol 4:1, methanol - toluene - 25% NH3 20:5:2, hexane - ethyl acetate 7:3, chloroform - acetone 9:1, dichloromethane - chloroform - ethyl acetate 50:50:1, toluene - methanol 49:1.

J. Liq. Chrom. & Rel. Technol. 22, 1589-1598 (1999). TLC of cephalosporins (cefsulodin, cefalothin, cefotaxime, cefoxitin, cefaman-dole) on ion-pair coated RP-18 (prepared by dipping the plate in a 3% ethanolic solution of the counter-ion for 5 min) in a horizontal DS-type sandwich chamber. Buffer solution, used as mobile phase, was prepared by dissolving 0.5 mL of 85% orthophosphoric acid in 80 mL water and adjusting the pH to the appropriate value with saturated sodium hydroxide solution. Visualization under UV 254 nm.

Proc. Intern. Symp. on Planar Separations Plan. Chrom. 61-70 (2003). OPLC of trans-resveratrol on silica gel with chloroform - methanol 10:1. Detection by bioautography - dried plates were immersed for 20 s into a suspension of Pseudomonas savastanoi pv. phaseolocola and visualized by staining with MTT (3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide).

CBS 96, 6-7 (2006). HPTLC of oxytetracycline in salmon feed, on silica gel (pre-washed with methanol and dried at 120 °C for 30 min, followed by dipping into 5 % EDTA solution of pH 7.0 and drying at 120 °C for 1 h in an oven) with the organic layer of dichloromethane - methanol - 5 % EDTA 13:4:2 with chamber saturation for 30 min.Quantitative determination by fluorescence measurement at UV 366/>400 nm. Calibration (peak area) was performed via linear regression with r2 of 0.9925. Recovery rates for oxytetracycline at 500, 2500, and 5000 mg/kg were 73 ± 4.2 %, 101 ± 2.6 %, and 101 ± 4.0 %. Intermediate precisions at the same levels were 5.7, 2.6 and 4.0 %. At an application volume of 10 µL LOD was 14.8 mg/kg (n=3) and LOQ was 49.2 mg/kg (n=10). Quantification was achieved between 100 and 10000 mg/kg oxytetracycline in salmon feed due to the selectivity of fluorescence measurement.

J. Braz. Chem. Soc. 21, 441-446 (2010). HPTLC of ochratoxin A in wine on silica gel with toluene - ethyl acetate - chloroform - formic acid 6:3:1. Quantitative determination by absorbance measurement at 366 nm, using a CCD camera followed by images processing using the software ImageJ. Linearity was between 0.8 and 32 µg/L. The intra-day and inter-day precisions had a RSD lower than 9.9 % and 11.5 %, respectively. LOD was 16 ng/zone while LOQ was 100 ng/zone. The proposed method is a simple, efficient and low cost tool for quantitative analysis of ochratoxin A in wine samples.

Innov. Food Sci. Emerg. Technol. 37, 184-191 (2016). HPTLC of aflatoxin B1 in Aspergillus flavus isolates on silica gel with toluene – isoamyl alcohol – methanol 90:32:2. Qualitative determination under UV light at 360 nm.

Experentia 41, 769-771 (1985). Fungal toxins (orellanine, orellinine) extracted with methanol from cortinarius orellamus and other species and their photodecompositon (UV) products are separated on silica with cyclohexane - ethyl acetate 3:1 and visualized by Fe2+ or Fe3+ reagents. Also 2-dimensional technique.

J.A.O.A.C. 68, 952-954 (1985). TLC of aflatoxin M1 on silica with a) ether - methanol - water 95:4:1, b) toluene - ethyl acetate - formic acid 50:45:5 and c) toluene - ethyl acetate - chloroform - formic acid 40:50:10:5. Detection by viewing under UV 366 nm or by spraying with sulfuric acid - water 1:3. Quantification by visual comparison with standards. Detection limit 0.5 mg/kg.