1. Quantitative thin-layer chromatography of chloramben herbicide using densitometry

   • J. Sherma
   • J. C. Touchstone

   Originals Pages: 261 - 264

2. Analogy in the gas chromatographic behaviour of sulfur and oxygen containing compounds and possibilities to use it for identification

   • R. V. Golovnya
   • V. G. Garbuzov

   Originals Pages: 265 - 269

3. Gas-liquid chromatography of 2,4-dinitrophenylhydrazones of carbonyl compounds; Retention indices and molecular structure

   • J. B. Pías
   • L. Gascó

   Originals Pages: 270 - 273

4. Pressure and density dependence of capacity ratios in supercritical fluid chromatography (SFC) with carbon dioxide as mobile phase

   • U. van Wasen
   • G. M. Schneider

   Originals Pages: 274 - 276

5. Thin layer chromatography of 57 metal ions on an inorganic ion-exchanger in mixed solvent systems

   • Syed Waqif Husain
   • Fahimeh Eivazi

   Originals Pages: 277 - 282

6. Chemisch modifiziertes Siliciumdioxid mit alkoholischen Hydroxylgruppen als stationäre Phase und Trägermaterial in der Säulen-Flüssig-Chromatographie

   • K. Unger
   • N. Becker
   • E. Krämer

   Originals Pages: 283 - 285

7. Quantitative determination of organic materials present in chromatographic packings or columns by the thermal destruction method

   • K. Tesařík
   • I. Borkovcová

   Originals Pages: 286 - 289

8. Spot test for detection of prostaglandin E and F compounds

   • E. J. Singh
   • F. P. Zuspan
   • A. Moawad

   Short Communication Pages: 290 - 290

9. Separation values and their utilization in column characterization

   • L. S. Ettre

   Serial Pages: 291 - 299

10. New products

    Announcement Pages: 300 - 306