1. New electrochemical and optical sensing techniques for the liquid phase

   • Richard P. Buck
   • E. Lindner

   Review Pages: 607 - 611

2. Trace analysis of surfactants using chromatographic and electrophoretic techniques

   • C. Vogt
   • Katja Heinig

   Review Pages: 612 - 618

3. Stabilization of antibodies by haptens

   • Michael Winklmair
   • Andreas J. Schuetz
   • Reinhard Niessner

   Original paper Pages: 619 - 624

4. Selection of hapten structures for indirect immunosensor arrays

   • Andreas J. Schuetz
   • Michael Winklmair
   • Reinhard Niessner

   Original paper Pages: 625 - 631

5. The preparation of a certified reference material of polar pesticides in freeze-dried water (CRM 606)

   • A. Martín-Esteban
   • P. Fernández
   • E. A. Maier

   Original paper Pages: 632 - 640

6. Direct determination of nickel traces on modified cellulose by diffuse reflection spectroscopy and using chromaticity characteristics

   • N. I. Ershova
   • V. M. Ivanov

   Original paper Pages: 641 - 645

7. Determination of cobalt by catalytic-adsorptive differential pulse voltammetry in the presence of 2-aminocyclopentene-1-dithiocarboxylic acid and nitrite

   • A. A. Ensafi
   • H. Rahimi Mansour
   • K. Zarei

   Original paper Pages: 646 - 650

8. Resonance Rayleigh scattering for the determination of cationic surfactants with Eosin Y

   • S. Liu
   • Guangming Zhou
   • Zhongfang Liu

   Original paper Pages: 651 - 654

9. Quantitative description of element concentrations in longitudinal river profiles by multiway PLS models

   • J. W. Einax
   • A. Aulinger
   • A. Prange

   Original paper Pages: 655 - 661

10. Determination of heavy metals in environmental bio-indicators by voltammetric and spectroscopic techniques

    • C. Locatelli
    • G. Torsi
    • T. Garai

    Original paper Pages: 662 - 666

11. Comparison between conventional and ultrasound accelerated Tessier sequential extraction schemes for metal fractionation in sewage sludge

    • B. Pérez-Cid
    • I. Lavilla
    • C. Bendicho

    Original paper Pages: 667 - 672

12. Determination of organophosphorus pesticides in soil by headspace solid-phase microextraction

    • W. F. Ng
    • Mui Jun Karen Teo
    • Hans-Åke Lakso

    Original paper Pages: 673 - 679

13. Determination of polar pesticides in soil by solid phase microextraction coupled to high-performance liquid chromatography-electrospray/mass spectrometry

    • M. Möder
    • P. Popp
    • J. Pawliszyn

    Original paper Pages: 680 - 685

14. The development of an automated continuous measurement system for the monitoring of HCHO and CH3CHO in the atmosphere by using an annular diffusion scrubber coupled to HPLC

    • Yuichi Komazaki
    • Masashi Hiratsuka
    • Tomio Fujita

    Original paper Pages: 686 - 695

15. Application of solid-phase microextraction to monitoring indoor air quality

    • Danuta Gorlo
    • Bogdan Zygmunt
    • J. Namieśnik

    Original paper Pages: 696 - 699

16. A high performance liquid chromatographic method for the screening of 17 diuretics in human urine

    • H.-J. Guchelaar
    • L. Chandi
    • W. A. van den Brand

    Original paper Pages: 700 - 705

17. Selection of optimum pH for the iodate determination using differential pulse polarography

    • Jianping Lin

    Short communication Pages: 706 - 707

18. DNA-modified electrodes. Part 6. A new method for the determination of binding constants and binding site sizes

    • Yuan-Di Zhao
    • D.-W. Pang
    • Jie-Ke Cheng

    Short communication Pages: 708 - 709

19. Determination of cadmium in Bentonite clay mineral using a carbon paste electrode

    • Valérie Marchal
    • Frédérique Barbier
    • Olivier Vittori

    Short communication Pages: 710 - 712

20. Simultaneous determination of propanol and butanol by a fluorometric enzymatic method based on the intrinsic fluorescence of the enzyme

    • José F. Sierra
    • Marta de Pedro
    • C. Ubide

    Short communication Pages: 713 - 715