1. Certification of the sulphur content of three rapeseed reference materials

   • P. J. Wagstaffe
   • A. Boenke
   • A. S. Lindsey

   Original Papers Pages: 1 - 7

2. The degree of efficiency, the degree of reproducibility and the equivalence probability in statistical comparisons of analytical methods for the determination of tin in tin ores

   • W. Rasemann
   • H. -J. Peter

   Original Papers Pages: 8 - 15

3. Correction parameters in X-ray fluorescence analysis applying the limit dilution method (LDM)

   • F. Bosch Reig
   • V. Peris Martinez
   • J. V. Gimeno Adelantado

   Original Papers Pages: 16 - 21

4. Correction parameters in X-ray fluorescence analysis applying the limit dilution method (LDM)

   • F. Bosch Reig
   • F. Bosch Mossi
   • J. V. Gimeno Adelantado

   Original Papers Pages: 22 - 26

5. Stability study of total antimony, Sb(III) and Sb(V) at the trace level

   • María Beatriz de la Calle-Guntiñas
   • Yolanda Madrid
   • Carmen Cámara

   Original Papers Pages: 27 - 29

6. Extractive-spectrophotometric determination of manganese(II) using 3-bromobenzohydroxamic acid as chelating agent

   • L. F. Capitán-Vallvey
   • A. Molina-Diaz
   • M. I. Pascual-Reguera

   Original Papers Pages: 30 - 33

7. Voltammetric determination of pentachlorophenol with a silica gel-modified carbon paste electrode

   • M. A. Ruiz Barrio
   • J. M. Pingarrón Carrazón

   Original Papers Pages: 34 - 38

8. A new HPLC method for the simultaneous determination of fluazifop-butyl and fluazifop in soil samples

   • Marco Zanco
   • Gerd Pfister
   • Antonius Kettrup

   Original Papers Pages: 39 - 41

9. Simultaneous determination of the herbicides isoproturon, dichlorprop-p, and bifenox in soils using RP-HPLC

   • H. Klöppel
   • J. Haider
   • B. Lüttecke

   Original Papers Pages: 42 - 46

10. Determination of halogenated acetic acids and 2,2-dichloropropionic acid in water samples

    • Markus Clemens
    • Heinz Friedrich Schöler

    Original Papers Pages: 47 - 49

11. The use of polarographic methods for the evaluation of the stability of element species in food extracts

    • Holger Reinecke
    • Lothar Dunemann
    • Georg Schwedt

    Original Papers Pages: 50 - 53

12. Determination of trace amounts of rare earth and other elements in rice samples by ICP-AES with sample introduction by tungsten-coil electrothermal vaporization

    • Mei Erwen
    • Jiang Zucheng
    • Liao Zhenhuang

    Original Papers Pages: 54 - 58

13. Prompt gamma cold neutron activation analysis applied to biological materials

    • M. Rossbach
    • Nguyen Trong Hiep

    Original Papers Pages: 59 - 62

14. Preparation of sample solutions for major component analysis of nickel-germanium-iron alloys by ICP-AES

    • Yûetsu Danzaki

    Short Communications Pages: 63 - 63

15. In situ concentration of volatile chromium β-diketonate for the determination by GFAAS

    • Y. An
    • S. N. Willie
    • R. E. Sturgeon

    Short Communications Pages: 64 - 65

16. Research in environmental pollution

    • H. Steinwandter

    Short Communications Pages: 66 - 67