J. AOAC Int. 73, 579-581 (1990). TLC of aflatoxin B1, B2 according to AOAC CB method 968.22. Quantification by densitometry. Good correlation between LC and TLC for aflatoxin B1.

J. Agric. Food Chem. 38, 1667-1673 (1990). Two step-TLC on silica with toluene - methanol 1:1 for 5 cm, after drying with toluene to 16 cm. Detection of tri-, di- and monoacylglycerols and free fatty acids by exposing to iodine vapor; of cholesteryl esters, cholesterol, cholesterol oxides and phospholipids by spraying with 50% sulfuric acid and heating at 110°C for 5 min. Quantification by determining the 14C activity.

J. Planar Chromatogr. 3, 177-180 (1990). Development of a planar chromatographic method for the positional analysis of naturally occurring triacylglycerols, consisting of initial random splitting of triacylglycerols by a Grignard reagent to the three corresponding diacylglycerols. These are subsequently separated in two elution steps by straight phase planar chromatography. The second elution step is carried out in a counter-direction after cutting the plate. The fatty acid composition of each single diacylglycerol is then determined by capillary GC. - TLC of diacylglycerols on silica with ether - hexane 1:1 with traces of formic acid (first direction). After derivatization (at the edge of a plate) with phosphomolybdic acid, the 1.2-diacylgycerols are removed (for GC analysis); the plate is cut along the line of scraped off 1,3-diacylglycerides, chromatographed in the opposite direction with ether - hexane 3:2 with traces of formic acid. The corresponding separated zones (2,3-diacylglycerols migrates above the 1,2-diacylglycerols are scraped off, transmethylated to FAMEs and subsequently analyzed by capillary GC.

J. Planar Chromatogr. 4, 253-254 (1991). HPTLC of histamine and histidine on silica with acetonitrile – acetone – NH3 15:5:5. Detection by spraying with ninhydrin solution, followed by immediate heating for 10 min at 110°C. Quantification by densitometry at 520 nm. Simple, rapid TLC method for accurate and precise quantification of histamine in wine at concentrations above 20 ppm without sample preparation, extraction, clean-up etc.

J. Planar Chromatogr. 6, 81-83 (1993). TLC of santalin A and B in neutral, acidic, and basic methanol on amino-modified silica with butanol - formic acid - water 19:2:5. Detection under UV 254 and 365 nm. Photodocumentation under UV 254, 366 and daylight illumination.

Biochemical Systematics and Ecology 21, 449-453 (1993). TLC of flavonoids on polyamide with water - butanol - acetone - dioxane 70:15:10:5. After drying visualization by spraying with amino-ethyldiphenylborate and under UV 366 nm.

Composition and structures of tri-glycerides of human milk and some base components for infant milk formulas. Fat Sci. Technol. 96, 147-154 (1994). TLC of triglycerides, 1,2-, 1,3-,2,3-diglycerides, monoglyceride, and stearic acid on silica impregnated with boric acid solution (50g/L in ethanol) with acetone - water 3:2 and hexane - tert butyl-methyl-ether - acetic acid 40:60:1. Detection with 2',7'-dichlorofluorescein (200 mg/100 mL in ethanol). GC after extraction and esterification.

J. Chromatogr. 624, 221-234 (1992). Review with 126 references on the analysis of anthocyanins, involving TLC and paper chromatography, with emphasis on HPLC analysis of anthocyanins as applied to food quality measurements.