1. Foreword to the new year

   • F. Lube

   EditorialNotes Pages: 3 - 3

2. Molekülstruktur und Retentionsverhalten IX. Das gas-chromatographische Retentionsverhalten isomerer Octine und Octadiine

   • Th. Welsch
   • W. Engewald
   • P. Berger

   Originals Pages: 5 - 9

3. Determination of bromazepam in plasma by quantitative thin-layer chromatography

   • P. Haefelfinger

   Originals Pages: 10 - 13

4. Gas-chromatographische Simultanbestimmung von O₂, N₂, CO, CO₂, N₂O, SO₂, CH₄, C₂H₄ und C₂H₆ im ppm-Bereich. I. Mitteilung

   • H. W. Dürbeck
   • R. Niehaus

   Originals Pages: 14 - 18

5. On-line gas chromatographic analyses for phthalic anhydride manufacture

   • N. R. Foster
   • M. S. Wainwright

   Originals Pages: 19 - 22

6. Paper electrophoretic separation of some diastereomers

   • I. M. Jakovljevic
   • R. W. Souter
   • R. H. Bishara

   Originals Pages: 23 - 25

7. Gas chromatographic analysis of C₁–C₄ nitroparaffins. Separation and identification

   • S. Boneva
   • I. Mladenov
   • N. Dimov

   Originals Pages: 26 - 29

8. Rapid screening of commercial pseudocumene purity by gas chromatography

   • R. K. Kuchhal
   • H. S. Mathur
   • P. L. Gupta

   Originals Pages: 30 - 33

9. A rapid method for direct quantitative analysis on chromatographic layers

   • M. Kaštelan-Macan
   • A. Devčić
   • B. Bego

   Short Communication Pages: 34 - 35

10. Amouncements

    Announcement Pages: 36 - 36

11. Book reviews

    • A. Braithwaite
    • G. E. P. Elliott

    BookReview Pages: 37 - 38

12. New products

    Announcement Pages: 44 - 47