1. The estimation of primary aromatic amines and other basic nitrogen compounds in some coal liquefaction products

   • P. Burchill
   • A. A. Herod
   • C. A. Mitchell

   Originals Pages: 67 - 76

2. Thin-layer chromatography of low-molecular epoxy compounds after derivatization with picric acid

   • J. Urbański
   • W. Balasiewicz

   Originals Pages: 77 - 78

3. Cellulose conformation responsible for resolution of DL-amino acids

   • S. Yuasa
   • A. Shimada
   • M. Itoh

   Originals Pages: 79 - 82

4. Porous polymers coated with stationary phases. Contribution of the support to retention behaviour in gas chromatography. Chromosorb 102 coated with ethofat 60/25, squalane and fractonitril VI. Calculation of the experimental partition constants

   • D. Barceló
   • M. T. Galcerán
   • L. Eek

   Originals Pages: 83 - 90

5. Relationship between thermodynamic characteristics and capacity ratios under LPTGC conditions

   • L. Podmaniczky
   • L. Szepesy
   • G. Schomburg

   Originals Pages: 91 - 94

6. Chromatography of glycols. Regularities in the retention of C₃−C₆ branched glycols in gas-solid and gas-liquid chromatography

   • A. M. Afanassiev
   • V. N. Demeshev
   • G. V. Kovalev

   Originals Pages: 95 - 104

7. Chromatographic behaviour of alkyl-bonded phases: Separation of barbiturates and pyrazolones on precoated plates

   • M. Marichy
   • C. Gonnet
   • L. Zlatanov

   Originals Pages: 105 - 109

8. Gas chromatographic method for the analysis of nitrochlorobenzene isomers

   • J. G. Mhalas
   • N. V. Rama Rao
   • M. Sriram

   Originals Pages: 110 - 112

9. Book reviews

   • Redaktionsnotiz
   • David B. Jack

   BookReview Pages: 115 - 116

10. Announcements

    Announcement Pages: 116 - 121

11. New products

    Announcement Pages: 122 - 131