Food Addit. Contam. 31, 1929-1938 (2014). TLC of stearoyl-lactylates in food on silica gel with hexane - diethyl ether 1:1 and 1 % acetic acid. Detection by spraying with 0.05 % primuline solution in acetone - water 4:1. Qualitative identification at UV 366 nm.

J. Planar Chromatogr. 2, 24-27 (1989). HPTLC of glycerylmonostearate on silica with hexane - ethyl acetate - methanol 7:2:1. Postchromatographic derivatization by dipping into 0.05% methanolic solution of 6-(p-toluidino)-2-naphtalene-sulfonic acid (potassium salt) and then under UV 365 nm. HPTLC of glyceryl monodiricinolate on silica with ethyl acetate - dichloromethane - methanol - formic acid 13:6:1:0.1. Post-chromatographic derivatization by dipping into 3% ethanolic solution of molybdato phosphoric acid and heating to 120°C for 15 min.

Planar Chromatogr. 8, 382 - 387 (1995). HPTLC of a polyoxyethylene glycerol trioleate nonionic surfactant (Tagat TO) on silica with MEK - acetone - water 50:5:X, X = 0, 3, 6, 9 in a twin-trough chamber. After drying detection by dipping into a solution containing copper(II)sulfate and phosphoric acid, followed by heating at 180°C for 20 min. Quantification by densitometry at 500 nm from the back of plate after covering the front with a glass plate. Detection limit 1.25 mg/mL. New sensitive, specific, and reproducible TLC method.

J. Planar Chromatogr. 29, 306-309 (2016). HPTLC of some red, rose, and white wines on silica gel with ethyl acetate – acetic acid – formic acid – water 10:1:1:2. Antioxidant activity determination by dipping into a 0.04 M methanolic 2,2-diphenyl-1-picrylhydrazyl (DPPH radical reagent) solution (1) and into a 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) solution (2; prepared by mixing 7 mM ABTS diammonium salt solution with 2.45 mM potassium persulfate solution 1:1). The plates were then dried in the fume hood and stored in the dark. The antioxidant activities were determined after 10 and 30 min reaction time. Method (2) was more sensitive than the DPPH assay.

Chromatographia 35, 252-236 (1993). Identification of lactic acid and ascorbic acid by TLC on cellulose with butanol - water- formic acid 6:2:1. Detection by spraying with bromocresol green. Determination of antioxidant synergists and ascorbic acid by reverse-phase HPLC.

(Determination of basic and quarternary ammonium preservatives in cosmetics with HPTLC in combination with HPLC and colorimetry.) Mitt. Gebiete Lebensm. Hyg. 88, 191-201 (1997). HPTLC of 3 basic and 10 quaternary ammonium preservatives (antimicrobial active compounds such as laurtrimonium, myrtrimonium, cetrimonium, steartrimonium, domiphen bromide, laurylpyridinium, cetylpyridinium, benzethonium, behentrimonium and benzalkonium chloride, hexamidine isethionate, chlorhexidine gluconate, hexetidine) in cosmetics (creams, lotions, toothpastes, mouthwashes) on RP-2 with methanolic ammonium acetate solution (70 mL of a solution of 3.84 g in 100 mL of methanol/30 mL of water). Detection under UV 254 nm. Quantification by densitometry at 620 nm after derivatization by immersion in a reagent consisting of 50 mg bromophenol blue in 100 mL methanol and 0.4 mL acetic acid. To distinguish between compounds with similar Rf values confirmation on prewashed silica with 3.84% ammonium acetate in methanol - ethyl acetate 9:1.

J. High Resol. Chromatogr. 8, 19-22 (1985). Anticircular HPTLC of jojoba wax and shea fat on silica with petrol ether - ether 6:4. Staining by dipping into phosphomolybdic acid solution. Quantification by densitometry at 546 nm.

Chinese J. Chromatogr. (Sepu) 9, 322-323 (1991). TLC of 4,4'bipyridine and p-dichloroxylene on silica with hexane – benzene 4:3 and chloroform – methanol 10:1. Detection by silver nitrate (0.85 g) – NH3 (2.5 mL) – ethanol (97.5 mL) and 3% silver nitrate in methanol. Quantification by densitometry at 254 nm.)