1. The ultra-clean chemical laboratory (UCCL) at the Institute for Reference Materials and Measurements (IRMM)

   • A. Lamberty
   • J. R. Moody
   • C. Lathen

   Original Paper Pages: 359 - 363

2. Molecular laser microprobe mass spectrometric analysis with xerogel matrices

   • Felix A. Guimelfarb
   • Elena V. Kletskina
   • Michael N. Philippov

   Original Paper Pages: 364 - 367

3. Preparation and properties of a new chelating resin containing imidazolyl azo groups

   • P. Chattopadhyay
   • C. Sinha
   • D. K. Pal

   Original Paper Pages: 368 - 372

4. Certification of morphine-3-β-D-glucuronide in a human urine standard reference material

   • Susan S. -C. Tai
   • Richard G. Christensen
   • Michael J. Welch

   Original Paper Pages: 373 - 378

5. Novel surface acoustic wave-interdigitated array electrode gas sensor for dissolved ammonia

   • Kang Chen
   • Yuanjin Xu
   • Shouzhuo Yao

   Original Paper Pages: 379 - 383

6. Use of microwave plasma torch atomic emission spectrometry for the determination of silicon

   • Feng Liang
   • Hanqi Zhang
   • Qinhan Jin

   Original Paper Pages: 384 - 388

7. Sensitive and selective determination of mercury by differential pulse stripping voltammetry after accumulation of mercury vapour on a gold plated graphite electrode

   • Mieczysław Korolczuk

   Original Paper Pages: 389 - 391

8. Flow injection analysis with amperometric detection for measurements of proton activities in solutions of strong acids and strong bases

   • Anastas Dimitrov Dakashev

   Original Paper Pages: 392 - 396

9. Identification of reaction products of mild oxidation of H₂S in solution and in solid state by UV-VIS spectroscopy

   • J. Melsheimer
   • R. Schlögl

   Original Paper Pages: 397 - 400

10. Simultaneous separation and microdetermination of cobalt(II), nickel(II) and copper(II)

    • M. A. Kabil
    • S. E. Ghazy
    • Y. E. Sherif

    Original Paper Pages: 401 - 404

11. The analysis of chromium, cobalt, iron, nickel, niobium, tantalum, titanium and zinc in cemented tungsten carbides with cobalt as a binder by inductively coupled plasma atomic emission spectrometry

    • Tero Piippanen
    • Jouko Jaatinen
    • Jouni Tummavuori

    Original Paper Pages: 405 - 410

12. Isolation and determination of dissolved organic sulphur compounds — development of the organic group parameter DOS

    • F. Binde
    • H. -H. Rüttinger

    Original Paper Pages: 411 - 415

13. Two-step solvent extraction flow injection system for the determination of anionic surfactants by spectrophotometry

    • Shihua Fan
    • Zhaolun Fang

    Original Paper Pages: 416 - 419

14. Species analysis of automotive carbon particles: Application of XPS for integral analysis of filter samples

    • U. Wild
    • N. Pfänder
    • R. Schlögl

    Original Paper Pages: 420 - 428

15. Simultaneous voltammetric determination of molybdenum and copper in biological samples

    • Stella T. Giroussi
    • Anastasios N. Voulgaropoulos
    • Aristomenis Ayiannidis

    Original Paper Pages: 429 - 432

16. Spectrophotometric determination of nitrite in natural waters using diazotization-coupling method with column preconcentration on naphthalene supported with ion-pair of tetradecyldimethylbenzyl-ammonium and iodide

    • Masatada Satake
    • Gen-Feng Wang

    Original Paper Pages: 433 - 438

17. Distillation, on-line RP C18 preconcentration and HPLC-UV-PCO-CVAAS as a new combination for the determination of methylmercury in sediments and fish tissue

    • Ralf Eiden
    • Ralf Falter
    • Heinz Friedrich Schöler

    Original Paper Pages: 439 - 441

18. Chlorobiphenyl (PCB) composition of extracts of subsurface soil, superficial dust and air from a contaminated landfill

    • L. G. Hansen
    • D. Green
    • B. Bush

    Original Paper Pages: 442 - 448

19. Simultaneous determination of drugs in concentration ratios above 40:1 by application of multivariate calibration to absorbance and derivative spectrophotometric signals

    • R. D. Bautista
    • A. I. Jiménez
    • J. J. Arias

    Original Paper Pages: 449 - 456

20. Direct copper determination in whole milk, non-fat milk and whey milk by electrothermal atomic absorption spectrometry

    • P. Bermejo Barrera
    • R. Domínguez González
    • A. Bermejo Barrera

    Original Paper Pages: 457 - 461

21. Extraction and separation of scandium salicylate with triphenylphosphine oxide

    • N. G. Bhilare
    • V. M. Shinde

    Short Communications Pages: 462 - 463

22. Simultaneous determination of chromium (III) and copper (II) by using derivative spectrophotometry with MEDTA

    • H. Seco-Lago
    • J. Pérez-Iglesias
    • V. González-Rodríguez

    Short Communications Pages: 464 - 466

23. Application of microcolumnion chromatography using octadecylsilica immobilized with bovine serum albumin as stationary phase for the determination of inorganic anions

    • Rahmiana Zein
    • Edison Munaf
    • Tomoo Miwa

    Short Communications Pages: 466 - 468