1. Two-dimensional separations and behaviour of alkaloids of various polarities on unmodified silica gel in polar and very polar neutral or acidic mobile phases

   • R. L. Munier
   • S. Meunier

   Originals Pages: 259 - 262

2. Resolution of enantiomers and isotopic compositions by selective complexation gas chromatography on metal complexes

   • V. Schurig

   Originals Pages: 263 - 270

3. Relative peak broadening and pore size distribution of the stationary phase in exclusion chromatography

   • W. Werner
   • I. Halász

   Originals Pages: 271 - 272

4. Computer simulation of the chromatographic process

   • J. Å. Jönsson

   Originals Pages: 273 - 276

5. Donor-acceptor complex chromatography preparation of a chemically bonded acceptor-ligand and its chromatographic investigation

   • H. Hemetsberger
   • H. Klar
   • H. Ricken

   Originals Pages: 277 - 286

6. Cation-exchange chromatography of some metal ions using aqueous NH₄SCN-organic solvent mixtures

   • J. Akhter
   • H. Misra
   • A. K. Dey

   Originals Pages: 287 - 290

7. Derivatisation of sympathomimetics with primary amino groups on thin-layer plates by spotting the sample spots with fluorescamine

   • R. Wintersteiger
   • G. Gübitz
   • A. Hartinger

   Originals Pages: 291 - 294

8. Analytical utility of 2-halopyridinium salts, part III paper electrophoretic characterization of alcohols as 2-alkoxy-1-methylpyridinium p-toluenesulphonates

   • E. Bald
   • B. Mazurkiewicz

   Originals Pages: 295 - 297

9. Announcements

   Announcement Pages: 298 - 298

10. Mass spectrometry volume 5

    • A. Braithwaite

    Book Review Pages: 299 - 299

11. New products

    Announcement Pages: 300 - 317