1. Chromatography with a two-dimensional column

   • G. Guiochon
   • M. F. Gonnord
   • A. M. Siouffi

   Originals Pages: 121 - 124

2. Use of non-segmented flow, post-columns reaction detection with miniaturized HPLC systems

   • J. A. Apffel
   • U. A. Th. Brinkman
   • R. W. Frei

   Originals Pages: 125 - 131

3. Numerical representation of the structural pattern as a way to predict HPLC retention

   • A. Bylina
   • L. Gluziński
   • P. A. Penczek

   Originals Pages: 132 - 138

4. Separation of citrus carotenoids by reversed-phase high-performance liquid chromatography

   • G. Noga
   • F. Lenz

   Originals Pages: 139 - 142

5. Intermolecular interactions in liquid adsorption chromatography

   • M. Boumahraz
   • V. Ya. Davydov
   • A. V. Kiselev

   Originals Pages: 143 - 148

6. Dextran fractionation on a semi-continuous counter-current simulated moving-bed chromatograph

   • P. E. Barker
   • G. Vlachogiannis
   • R. M. Alsop

   Originals Pages: 149 - 153

7. Quartz-capillary gas chromatography of chlorinated phenols and catechols

   • I. O. O. Korhonen
   • J. Knuutinen

   Originals Pages: 154 - 156

8. A study of the properties of octadecyl phases bonded to controlled porosity glasses. Investigations by „inverse” gas chromatography

   • A. Dawidowicz
   • J. Rayss
   • Z. Suprynowicz

   Originals Pages: 157 - 159

9. Gaschromatographische Identifizierung von Stoffen anhand von Indexziffern und unterschiedlichen Detektoren

   • J. Winskowski

   Originals Pages: 160 - 165

10. Diffusion coefficients of some derivatives in dinonyl phthalate by gas-liquid chromatography

    • R. Alvarez
    • J. M. Dominguez
    • J. Coca

    Originals Pages: 166 - 168

11. Book reviews

    • R. Stock
    • B. Scanlon
    • A. V. Jones

    BookReview Pages: 168 - 169

12. Announcements

    Announcement Pages: 170 - 172

13. New products

    Announcement Pages: 175 - 177