1. Boldog születésnapot!

   Congratulation Pages: 207 - 207

2. A tribute to Leslie Ettre on the occasion of his seventieth birthday

   • Csaba Horváth

   Editorial Pages: 209 - 211

3. Some questions for chromatographers

   • N. Volpe
   • A. -M. Siouffi

   OriginalPaper Pages: 213 - 218

4. Pulsed discharge helium ionization detector

   • W. E. Wentworth
   • S. V. Vasnin
   • C. J. Meyer

   OriginalPaper Pages: 219 - 225

5. Pulsed discharge emission detector — Application to analytical spectroscopy of permanent gases

   • S. V. Vasnin
   • W. E. Wentworth
   • C. J. Meyer

   OriginalPaper Pages: 226 - 234

6. Determination of partition coefficients by automatic equilibrium headspace gas chromatography by vapor phase calibration

   • B. Kolb
   • C. Welter
   • C. Bichler

   OriginalPaper Pages: 235 - 240

7. Isolation of volatiles with insecticidal properties from the genusTagetes (Marigold)

   • C. Wells
   • W. Bertsch
   • M. Perich

   OriginalPaper Pages: 241 - 248

8. Pair-wise interactions by gas chromatography. Part II: Sociation free enthalpies of some hydrogen bonding solutes with non-associated primary alcohol groups

   • K. S. Reddy
   • E. Sz. Kováts

   OriginalPaper Pages: 249 - 252

9. Gas chromatographic behaviour of isomeric tricyclo[10.4.0.0^4,9]hexadecanes

   • W. Engewald
   • R. Reinhardt
   • R. Herzschuh

   OriginalPaper Pages: 253 - 258

10. A novel CGC-CGC-MS configuration for the analysis of polychlorodibenzodioxins and polychlorodibenzofurans

    • F. David
    • P. Sandra
    • J. Gerstel

    OriginalPaper Pages: 259 - 265

11. Free radical crosslinking of the gas chromatographic stationary phase containing europium chelates

    • W. J. Kowalski

    OriginalPaper Pages: 266 - 268

12. A study of diastereoisomerism of oxovanadium schiff base chelates by gas chromatography-atomic emission spectroscopy, and high performance liquid chromatography

    • P. C. Uden
    • Y. Zeng

    OriginalPaper Pages: 269 - 275

13. An approach to the analysis of crosslinked epoxy systems

    • J. K. Haken
    • S. Koopetngarm

    OriginalPaper Pages: 276 - 280

14. Recent advances in solvation models for stationary phase characterization and the prediction of retention in gas chromatography

    • C. F. Poole
    • T. O. Kollie
    • S. K. Poole

    OriginalPaper Pages: 281 - 302

15. Computer-aided optimization of stepwise gradient profiles in thin-layer chromatography

    • G. Matysik
    • W. Markowski
    • B. Polak

    OriginalPaper Pages: 303 - 307

16. Capillary zone electrophoretic analysis of carbohydrates by direct and indirect UV detection

    • P. J. Oefner
    • A. E. Vorndran
    • G. K. Bonn

    OriginalPaper Pages: 308 - 316

17. Solid phase immune reactions as monitored by sedimentation field-flow fractionation

    • B. Langwost
    • K. D. Caldwell

    OriginalPaper Pages: 317 - 324

18. Retention in field-flow fractionation with secondary chemical equilibria

    • M. Martin

    OriginalPaper Pages: 325 - 330

19. The “priority pollutant” analysis of water

    • R. M. A. Lautamo
    • D. Decker
    • M. F. Mehran

    OriginalPaper Pages: 331 - 334

20. Modifications of poly(methyl-3-propylthiol)siloxane to give stationary phases for open tubular supercritical fluid chromatography

    • K. Janák
    • M. Demirbüker
    • L. G. Blomberg

    OriginalPaper Pages: 335 - 341

21. Michael Tswett's columns: Facts and speculations

    • V. R. Meyer

    OriginalPaper Pages: 342 - 346

22. Factors influencing retention and resolution of substituted alkylbenzenes in reversed-phase liquid chromatography

    • B. N. Barman
    • D. E. Martire

    OriginalPaper Pages: 347 - 356

23. Fast protein separation and characterization by hydrophobic interaction chromatography (HIC) and low angle laser light scattering photometry (LALLS)

    • R. M. Mhatre
    • I. S. Krull

    OriginalPaper Pages: 357 - 362

24. Gradient high performance liquid chromatography of block copolymers of styrene andt-butyl methacrylate II. Association phenomena in mixtures of block copolymer with polystyrene

    • G. Glöckner
    • D. Wolf

    OriginalPaper Pages: 363 - 368

25. Two-dimensional liquid chromatography of peptides: An optimization strategy

    • N. Lundell
    • K. Markides

    OriginalPaper Pages: 369 - 375

26. Direct determination of Benzo[a]pyrene in oil distillates by on-line two-dimensional HPLC with column switching

    • G. Lamprecht
    • J. F. K. Huber

    OriginalPaper Pages: 376 - 380

27. Multidentate phenyl-bonded phases in high-performance liquid chromatography

    • K. Jinno
    • K. Yamamoto
    • W. R. Biggs

    OriginalPaper Pages: 381 - 385

28. Microcolumn liquid chromatography with silica gel dynamically modified with a bile acid derivative

    • T. Takeuchi
    • T. Miwa

    OriginalPaper Pages: 386 - 390

29. Comparison and evaluation of HIC columns of different hydrophobicity

    • L. Szepesy
    • G. Rippel

    OriginalPaper Pages: 391 - 397

30. Hhdrodenitrogenation catalysis studied by reversed-flow gas chromatography

    • A. Niotis
    • N. A. Katsanos

    OriginalPaper Pages: 398 - 410

31. Chromatographic solutions to pharmaceutical analytical problems

    • S. Ahuja

    OriginalPaper Pages: 411 - 416

32. Correlation ion chromatography with indirect UV detection

    • M. Kaljurand
    • E. Urbas
    • U. Haldna

    OriginalPaper Pages: 417 - 420

33. Comparison of HPLC and solid phase clean-up methods for identification of PCBs in cod-liver oil by HRGC/MS-SIM technique

    • H. Sirén
    • H. Hyvönen
    • M. -L. Riekkola

    OriginalPaper Pages: 421 - 430

34. Chromatographic characteristics of porphyrine ether glycerides

    • J. Śliwiok
    • P. Kuś
    • A. Kozera

    OriginalPaper Pages: 431 - 432