1. Financial aid to Participate in International Symposia 1985

   • Ralph Stock

   Editorial Pages: 71 - 71

2. Separtation of metal tetrakis(p-tolyl)porphine complexes by reversed-phase high-performance liquid chromatography

   • M. Kobayashi
   • K. Saitoh
   • N. Suzuki

   Originals Pages: 72 - 74

3. Analysis of perfluoroalkanes and fluorobenzenes using an Al₂ O₃ porous-layer open-tubular column

   • L. Ghaoui
   • E. Dessai
   • E. C. M. Chen

   Originals Pages: 75 - 78

4. Application of pharmacia automated FPLC System and PepRPC HR 5/5 bonded phase column for determination of dansylated polyamines

   • T. Kremmer
   • M. Boldizsár
   • L. Holczinger

   Originals Pages: 79 - 82

5. Identification of non-branched alkenylcycloalkanes with a terminal double bond from retention index increments

   • G. Anders
   • K. Anders
   • W. Engewald

   Originals Pages: 83 - 86

6. Time optimization for routine separations, using high-speed microbore HPLC

   • D. A. Dezaro
   • D. Dvorn
   • R. A. Hartwick

   Originals Pages: 87 - 96

7. Quantitation of 1,2 and 1,4-naphthoquinone in phthalic anhydride by HPLC

   • M. S. Wainwright
   • R. P. Chaplin
   • F. Leonardi

   Originals Pages: 96 - 98

8. A new chromatographic method for the separation of food dye mixtures on thin MgO layers

   • J. Masłowska

   Originals Pages: 99 - 101

9. Chromatography of diols. Regularities in the retention of linear diprimary diols in gas-solid and gas-liquid chromatography

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

   Originals Pages: 102 - 108

10. A semicrystalline inorganic ion-exchanger for thin-layer chromatographic separation of phenolic compounds

    • S. A. Nabi
    • W. U. Farooqui
    • N. Rahman

    Originals Pages: 109 - 111

11. The use of deuterated solvents in high-performance liquid chromatography-Fourier transform infrared spectrometry

    • C. Fujimoto
    • G. Uematsu
    • K. Jinno

    Originals Pages: 112 - 116

12. Modification of a commercial preparative HPLC system allowing for UV detection of small amounts of materials with high extinction coefficients

    • J. Baptista
    • I. Gupta
    • J. J. Krepinsky

    Originals Pages: 117 - 119

13. Substituent interaction effects in aromatic molecules in RP-HPLC with acetonitrile-water and tetrahydrofuran-water eluents

    • M. C. Spanjer
    • C. L. de Ligny

    Originals Pages: 120 - 124

14. Peak and cycle capacity of recycling chromatography

    • H. Kalász

    Originals Pages: 125 - 128

15. Increased electrochemical detector sensitivity by electrode surface modification

    • M. R. Gregg

    Originals Pages: 129 - 133

16. Book reviews

    • E. R. Adlard
    • David B. Jack
    • F. J. Smith

    BookReview Pages: 133 - 135

17. Announcements

    Announcement Pages: 136 - 137

18. New products

    Announcement Pages: 137 - 138

19. Chromatographia

    Announcement Pages: 141 - 145