1. Capillary zone electrophoresis of aldoses, ketoses and uronic acids derivatized with ethylp-aminobenzoate

   • A. E. Vorndran
   • E. Grill
   • G. K. Bonn

   Originals Pages: 109 - 114

2. Retention characteristics of chlorinated polycyclic aromatic hydrocarbons in normal phase HPLC. II. Chloro-substituted PAHs

   • U. L. Nilsson
   • A. L. Colmsjö

   Originals Pages: 115 - 120

3. Planarity selectivity in supercritical fluid and liquid chromatography using octadecylsilane-modified silicas with carbon dioxide

   • C. Fujimoto
   • M. Suzuki
   • K. Jinno

   Originals Pages: 121 - 124

4. Influence of operational parameters on retention of ultra-high molecular weight polystyrenes in thermal field-flow fractionation

   • J. Janča
   • M. Martin

   Originals Pages: 125 - 131

5. Cystine and cysteine analysis as the same phenylthiocarbamyl derivatives by HPLC in protein hydrolyzates

   • I. Molnár-Perl
   • M. Morvai

   Originals Pages: 132 - 136

6. Separation of polychlorodibenzo-p-dioxins and-dibenzofurans on the new polar stationary phase DB DIOXIN

   • R. Bacher
   • K. Ballschmiter

   Originals Pages: 137 - 142

7. A column switching technique for the determination of lidocaine and its metabolites in horse urine

   • I. R. Tebbett
   • A. Negrusz
   • R. C. Jensen

   Originals Pages: 143 - 145

8. Liquid chromatographic retention and separation of phenols and related aromatic compounds on reversed phase columns

   • G. Marko-Varga
   • D. Barceló

   Originals Pages: 146 - 154

9. Retention behaviour of crown ethers and actinomycin D in reversed-phase HPLC

   • A. Horti
   • E. Glibin
   • V. Nesterov

   Originals Pages: 155 - 158

10. Isolation of very volatile compounds from the leaves ofLedum palustre using the purge & trap technique

    • T. M. Ylipahkala
    • J. E. Jalonen

    Originals Pages: 159 - 162

11. The GC separation of C₂-naphthalene isomers using cyclodextrins and crown ethers

    • A. R. J. Andrews
    • Z. Wu
    • A. Zlatkis

    Originals Pages: 163 - 165

12. Systematic optimization of micellar electrokinetic chromatographic separation of flavonoids

    • C. L. Ng
    • C. P. Ong
    • S. F. Y. Li

    Originals Pages: 166 - 172

13. Microcolumn liquid chromatography on carbon sorbents

    • N. A. Eltekova

    Originals Pages: 173 - 176

14. Synthesis of acceptor bonded phases for donor-acceptor liquid chromatography

    • G. Félix
    • A. Thienpont
    • P. Dentraygues

    Originals Pages: 177 - 181

15. Silanol group effect in C₁₈ bonded phases in HPLC

    • Li Chongying

    Short Communications Pages: 182 - 184

16. The dependence of sorbent/analyte type on observed differences in supercritical fluid extraction efficiencies employing extraction vessels of different dimensions

    • K. G. Furton
    • Q. Lin

    Short Communications Pages: 185 - 187

17. Announcements

    Announcement Pages: 190 - 193

18. New products

    Announcement Pages: 193 - 199