1. Evaluation of noisy FIAS using the cross-covariance function

   • Klaus Doerffel
   • Jens Dost
   • Helmut Müller

   Original Papers Pages: 255 - 257

2. Cluster analysis of MS- and IR-spectra of pyrazines and related heterocyclic flavour substances

   • B. Remberg
   • A. Nikiforov
   • G. Buchbauer

   Original Papers Pages: 258 - 263

3. Ionic space charge phenomena during SIMS analysis of ceramic materials

   • Zhiqing He
   • Günter Borchardt
   • Wolfgang Wegener

   Original Papers Pages: 264 - 268

4. Karl Fischer coulometry — the cathode reaction

   • Eugen Scholz

   Original Papers Pages: 269 - 271

5. Uranyl ion-selective optode based on neutral ionophores

   • Markus Lerchi
   • Elmar Reitter
   • Wilhelm Simon

   Original Papers Pages: 272 - 276

6. Electrochemical characteristics of H₂O₂ microarray electrodes as base elements of biosensors

   • Zhu Jianzhong
   • Liu Xiaohui
   • Zhang Guoxiong

   Original Papers Pages: 277 - 280

7. Use of chelating resin containing thioacetamide groups for the separation of copper

   • B. Konar
   • S. Basu

   Original Papers Pages: 281 - 283

8. Determination of rare earth elements in Gd₂O₃ by ICP-OES

   • Leela Darbha
   • S. Gangadharan

   Original Papers Pages: 284 - 286

9. Determination of beryllium trace contents in mineral waters after preconcentration on a chelating ion-exchanger

   • J. Kubová
   • V. Nevoral
   • V. Streško

   Original Papers Pages: 287 - 290

10. Phthalates in surface water — a method for routine trace level analysis

    • K. Furtmann

    Original Papers Pages: 291 - 296

11. Carbon column HPLC and carborane-phase capillary GLC for the separation of polychlorinated biphenyl congeners

    • V. Böhm
    • E. Schulte
    • H. -P. Thier

    Original Papers Pages: 297 - 300

12. Labile/inert metal species in aquatic humic substances: an ion-exchange study

    • Peter Burba

    Original Papers Pages: 301 - 311

13. Anodic stripping voltammetric determination of heavy metals in solutions containing humic acids

    • J. Labuda
    • D. Saur
    • R. Neeb

    Original Papers Pages: 312 - 316

14. Flame AAS determination of As, Cd and Tl in soils and sediments after their simultaneous carbodithioate extraction

    • E. Ivanova
    • M. Stoimenova
    • G. Gentcheva

    Original Papers Pages: 317 - 319

15. Chromatographic purification and HPLC assay with electrochemical detection of diethylstilboestrol residues in meat

    • Aldo Lagana'
    • Aldo Marino
    • Giovanna Fago

    Original Papers Pages: 320 - 323

16. Residue analysis of ethylenethiourea in vegetables by high-performance liquid chromatography with amperometric detection

    • Masao Maruyama

    Original Papers Pages: 324 - 326

17. Separation of geometrical isomers of sesquiterpene and diterpene alcohols on bare silica by carbon dioxide supercritical fluid chromatography

    • P. Morin

    Short Communications Pages: 327 - 328

18. Extraction equilibrium in the system hexachlororhenate(IV) — iodo-nitro-tetrazolium chloride-dichloroethane-water

    • Z. Simeonova
    • A. Alexandrov
    • M. Dzharkova

    Short Communications Pages: 329 - 330