J. Chromatogr. 698, 163-179 (1995). A review with 117 references on the applications of two-dimensional electrophoresis in major body fluids and their components and solid tissues and cultures of individual cell systems. Summary of the trends in the technology.

Anal. Chem. 67, 295R-313R (1995). A review with 728 references on the methodology of analysing pharmaceuticals and related compounds, including TLC applications in the field.

J. Planar Chromatogr. 9, 84-91 (1996). Review of the use of tandem mass spectrometry (MS-MS) in combination with planar chromatography (TLC or HPTLC). Examples of the use of the technique with a wide range of synthetic compounds (drugs, plasticizers) and natural products (steroids, glycolipids) are provided. Ionization techniques for performing TLC-MS are described and critically appraised and practical aspects of the hyphenation of TLC and mass spectrometry are considered. Discussion of the advantages of MS-MS over simple MS techniques.

J. Chromatogr. A 720, 3-25 (1996). A review with 234 references on the current improvement of TLC of gangliosides over the past decade, including basic general techniques and advice for separation of glycosphingolipids, new approaches concerning continuos and multiple development and preparative TLC and related techniques in practical applications.

J. Chromatogr. A 1053 (1-2), 15-26 (2004). The mini-review summarizes the develoment of different classes of novel quaternarized heterocyclic compounds able to modulate and reverse the electroendoosmotic flow (EOF) in a most peculiar manner. The first class comprises mono-salt compounds, with the determinant omega-iodoalkyl chains of different lengths (typically C4-C8), able to be adsorbed by silicas at alkaline pH and spontaneously alkylate ionised silanols, thus becoming covalently affixed to it. The second class is constituted by di-salt compounds, attached at the termini of an alkyl chain of variable lengths (typically C4-C8). This second class is unable to bind covalently silica surfaces although in thin-layer chromatography it exhibits an extraordinary affinity for silica beads, contrary to the first one. On the basis of the strikingly different behaviour structural rules are derived for the minimum requirements for general classes of amines to bind to silica walls and modify EOF. For compounds unable to bind covalently to the wall, the most important structural motif is two quaternary nitrogens spaced apart by a C4 chain: this seems to be the average distance (i.e. 0.8 nm) between two adjacent, ionized silanols for a snug fit. The other structural binding motif is the "hydrophobic decoration", i.e. the ratio of charged groups to alkyl residue in the various amines; amines with high levels of such alkane groups (i.e. with higher hydrophobicity), seem to bind more tenaciously to the wall, probably due to hydrophobic interaction not to the wall but among the amine derivatives themselves when carpeting the silica.