J. AOAC Int. 82, 1 - 8 (1999). TLC of antibiotics (avilamycin, avoparcin, Zn-bacitracin, erythromycin, flavomycin, furazolidone, lasalocid, monensin, narasin, penicillin, salinomycin, spiramycin, tetracyclines, tylosin, virginiamycin) after sample extraction on silica gel using butanol - methanol - 0.8% oxalic acid 8:2:5 or ethyl acetate - toluene - isopropanol 36:4:1. Detection by bioautography using a variety of test media and bacteria. Carbadox can be detected under UV prior to bioautography. Semiquantitative determination by measuring the size of the inhibition zones.

J. Liq. Chrom. & Rel. Technol. 24, 1501-1510 (2001). TLC of ampicillin on silica gel with butanol - water - acetic acid 4:1:1. Quantitation by densitometry at 485 nm after dipping in 0.2% ethanolic ninhydrin solution. The method was validated for linearity, detection limit, and accuracy by the method of Funk as well as for selectivity, and precision. Selective, precise, and accurate procedure.

J. Planar Chromatogr. 19, 216-222 (2006). TLC of ciprofloxacin monohydrate hydrochloride, enoxacin sesquihydrate, fleroxacin, norfloxacin, pefloxacin dihydrate mesylate, sparfloxacin, and ofloxacin on silica gel, cellulose and RP18 with numerous mobile phases. Best separations were achieved on silica gel with methanol - acetone - 1mol/L citric acid - triethylamine 28:2:2:5, on cellulose with dichloromethane - isopropanol - tetrahydrofuran - 25% ammonia 4:6:3:3, and on RP18 with methanol - 0.07 mol/L phosphate buffer (pH 6) - 10 mmol/L benzyldimethyltetradecylammonium chloride 6:3:1. Detection under UV light at 254 nm was more sensitive than spraying with Dragendorff reagent, Forrest’s reagent, 15 % FeCl3 in 2 % HCl, iodic reagent (5 g FeCl3 and 2 g I2 in 100 mL acetone - 20 % tartaric acid 1:1), 20 % phosphomolybdic acid in 10 % sulfuric acid, and Folin-Ciocalteu reagent.

J. Planar Chromatogr. 23, 193-197 (2010). HPTLC of ochratoxin A, aflatoxin B1, G1, B2, and G2 on silica gel with t-butyl methyl ether - water - methanol - cyclohexane 48:1:2:1 in an unsaturated horizontal developing chamber and on RP18 with methanol - 4 % aqueous zinc sulfate solution - ethyl methyl ketone 5:5:1. After development the silica gel plate was dipped for 2 s in silicone oil - hexane 1:2 which enhanced aflatoxin fluorescence by a factor of 2 and ochratoxin A fluorescence by a factor of 3-10. RP18 plates were developed to a distance of 75 mm in an unsaturated vertical chamber. Averaged densitograms were obtained in the emission wavelength range from 445 to 485 nm. Sample pretreatment was by modified QuEChERS (Quick, Easy; Cheap, Effectice, Rugged, Safe) extraction with tetahydrofuran or acetone. Linearity was in the range of 3 to 100 pg/zone for aflatoxins B2 and G2, 10 to 350 pg/zone for aflatoxins B1 and G1, and 0.25 to 2.5 ng/zone for ochratoxin A. LOQ for the aflatoxins were between 13 and 35 pg/zone (equivalent to to 1.5 and 2.5 ppb); for ochratoxin A it was 970 pg/zone (56 ppb).

Food Control. 71, 234-241 (2017). HPTLC of residual aflatoxin B1 after biological detoxification on silica gel with chloroform – ethyl acetate 4:1. Quantitative determination by absorbance measurement at 365 nm.

Proc. Intern. Symposium on TLC with special Emphasis on OPLC, Szeged, 77 (1984). OPLC (OPTLC) of zearalenone (F2-toxin) on silica with a) toluene - ethyl acetate - formic acid 30:14:2, b) chloroform - acetone 9:1. Detection by UV or with 2 % 4-methoxy-benzenediazonium-fluoroborate solution. Sensitivity 0.04 mg F2-toxin (UV), 0.02 mg F2-toxin (4-methoxy-solution).

J.A.O.A.C. 68, 458-461 (1985). TLC of aflatoxins B1, B2 and M 1 on silica with chloroform - acetone 9:1 or ether - methanol - water 94:4.5:1.5 for aflatoxins 1B, B2, G1 and G2, and chloroform - isopropanol - acetone 85:5:10 for aflatoxin M1. Quantification by densitometry. Comparison with other methods. This method is more efficient with respect to recovery and shorter analysis time.

J.A.O.A.C 69, 964-966 (1986). TLC of cyclopiazonic acid on silica with ethylacetate -2-propanol - NH3 50:15:10. Detection after drying by spraying with dimethylaminobenzaldehyde solution ( 1 g 4-dimethylaminobenzaldehyde in 75 ml ethanol and 25 ml HCl conc). Quantification by densitometry. Detection limit 25 ng/spot or 125 mg/kg.