in cases of overdose and identification of the actual barbiturate concerned may be impossible because of the closely similar Rf values of this group. Jackson (1960) described treatment with hot sulphuric acid before paper chromatography to distinguish between barbiturates of similar chromatographic mobility. The inert nature of the silica gel supporting medium used in thin-layer separations ena...

Plasma/serum protein patterns in human fetuses and infants: a study by high-resolution two-dimensional polyacrylamide gel electrophoresis. Applied and Theoretical Electrophoresis 3: 183}190. Tissot JD and Spertini F (1995) Analysis of immunoglobulins by two-dimensional gel electrophoresis. Journal of Chromatography A 698: 225}250. Tissot JD, Invernizzi F, Schifferli J, Spertini F and Schneider ...

This is a review of analytical methods, such as spectrophotometry, derivative spectrophotometry and various chromatographic (gas chromatography-GC, high-performance liquid chromatography-HPLC, thin-layer chromatography-TLC, high-performance thin-layer chromatography-HPTLC, liquid chromatography-tandem mass spectrometry-LC-MS, microchip electrophoresis-MCE, capillary electrophoresis-CE) and elec...

nshirt H (1969) Synthetic pharmaceutical products. In: Stahl E (ed.) Thin-layer Chromatography, p. 541. London: G. Allen and Unwin. Guinchard C, Truong TT, Masson JD and Panouse JD (1976) Migration d’acides aromatiques en chromatographie sur couche mince de gel de silice en fonction de la teneur en eau ou en acide formique de solutions creH ant l’atmosphere de la cuve à chromatographie. Chromat...

Crude ether extracts of green shoots of Cucumis sativus L. promoted the elongation of cucumber hypocotyl segments. Purification of the extract was accomplished by DEAE cellulose, silicic acid, and magnesium silicate chromatography followed by gel filtration and preparative thin layer chromatography. Identification of the growth promoter as indole-3-ethanol was achieved by mass spectrometry, thi...