1. Studies on the elimination of sulfide interference in the potentiometric determination of chloride using ion selective electrodes in a flow injection system

   • Tahir Altunbulduk
   • Heinz Meier zu Köcker
   • Wolfgang Frenzel

   Original Papers Pages: 593 - 598

2. Solid-state electrode with a Cu(I)-based membrane hydrophobised by PTFE for the measurement of Cu²⁺ and I⁻

   • Njegomir Radić
   • Miljenko Papa

   Original Papers Pages: 599 - 603

3. Simultaneous determination of chromium (III) and chromium (VI) by reversed-phase ion-pair HPLC with chromium-specific detection

   • J. Lintschinger
   • K. Kalcher
   • M. Novic

   Original Papers Pages: 604 - 609

4. ICP emission spectrometric analysis of rare earth elements in permanent magnet alloys

   • M. Renko
   • A. Osojnik
   • V. Hudnik

   Original Papers Pages: 610 - 613

5. Flow injection analysis of high chloride levels in electroplating baths using on-line dialysis and potentiometric detection

   • A. N. Araújo
   • M. B. Etxebarria
   • R. Pérez Olmos

   Original Papers Pages: 614 - 617

6. Voltammetric behaviour of the zirconium-phenylfluorone-hexadecyl pyridinium chloride system and the sensitizing effect of surfactants

   • Xiaoli Zhang
   • Chengsong Ma
   • Rongli Chen

   Original Papers Pages: 618 - 621

7. Improved analysis of polycyclic aromatic hydrocarbons in aqueous solutions by gas chromatography

   • Lutz Peschke
   • Franz-Hubert Haegel

   Original Papers Pages: 622 - 624

8. Toxicity testing of oil-contaminated drilling cuttings

   • B. Neustadt
   • I. L. Marr
   • H. W. Zwanziger

   Original Papers Pages: 625 - 628

9. Fractionated combustion analysis of carbon in forest soils — new possibilities for the analysis and characterization of different soils

   • Volker Schwartz

   Original Papers Pages: 629 - 631

10. Statistical evaluation of the influence of several sample pretreatment methods on the mercury content detectable by chemical analysis of contaminated soil samples under practical conditions

    • W. Rasemann
    • U. Seltmann
    • M. Hempel

    Original Papers Pages: 632 - 641

11. Multiresidue analysis of polar pesticides in surface and drinking water by on-line enrichment and thermospray LC-MS

    • S. Sennert
    • D. Volmer
    • G. Wünsch

    Original Papers Pages: 642 - 649

12. Polarographic behaviour of some s-triazine herbicides and their determination by adsorptive stripping voltammetry at the hanging mercury drop electrode

    • J. Skopalová
    • M. Kotouček

    Original Papers Pages: 650 - 655

13. Voltammetric methods for determination of mercury in domestic waste and compost

    • Jerzy Golimowski
    • Anna Orzechowska
    • Agnieszka Tykarska

    Original Papers Pages: 656 - 659

14. Immunochemical detection of metabolites of parent and nitro polycyclic aromatic hydrocarbons in urine samples from persons occupationally exposed to diesel exhaust

    • P. T. J. Scheepers
    • P. H. S. Fijneman
    • R. P. Bos

    Original Papers Pages: 660 - 669

15. Capillary electrophoresis methods for a clear identification of seleno amino acids in complex matrices like human milk

    • B. Michalke

    Original Papers Pages: 670 - 677

16. Digestion-free determination of heavy metals (Pb, Cd, Cu) in honey using anodic stripping differential pulse voltammetry and potentiometric stripping analysis

    • Yingjian Li
    • Faramarz Wahdat
    • Rolf Neeb

    Original Papers Pages: 678 - 682

17. Determination of V(V), Nb(V) and Ta(V) as their 2-(5-nitro-2-pyridylazo)-5-diethylaminophenol complexes by reversed-phase high performance liquid chromatography

    • Hong Wang
    • Hua-Shan Zhang
    • Jie-Ke Cheng

    Short Communications Pages: 683 - 685

18. Method for the sampling and analysis of sulphur dioxide

    • K. Shanthi
    • N. Balasubramanian

    Short Communications Pages: 685 - 686

19. Determination of 2-amino-5-nitrothiazole by square-wave cathodic stripping voltammetry

    • P. Hernández
    • M. J. González de la Huebra
    • L. Hernández

    Short Communications Pages: 686 - 688

20. Retention behaviour of nonylphenyl ethyleneoxide oligomers on alumina columns

    • Esther Forgács
    • Tibor Cserháti

    Short Communications Pages: 688 - 689

21. Determination of tyrosine traces by adsorption voltammetry of its copper (II) complex

    • Lizeng Wang
    • Chengsong Ma
    • Yong Yu

    Short Communications Pages: 689 - 691

22. Quantitative determination of carboxylate by infrared spectroscopy: application to humic acids

    • O. Hadžija
    • B. Špoljar

    Short Communications Pages: 692 - 693

23. Adsorptive voltammetry for the determination of trace amounts of aluminium in blood serum derived products

    • M. Karpiuk
    • M. Politowicz
    • S. Rubel

    Short Communications Pages: 693 - 695

24. Determination of aluminium in chewing gum samples using electrothermal atomic-absorption spectrometry and slurry sample introduction

    • P. Viñas
    • N. Campillo
    • M. Hernández Córdoba

    Short Communications Pages: 695 - 696

25. Classification of Macedonian early bronze age ceramics using their various chemical and technological features

    • J. A. Stratis
    • G. A. Zachariadis
    • V. D. Simeonov

    Short Communications Pages: 697 - 699