1. Parametric and bootstrap estimations of confidence intervals for representative sample weights

   • R. Henrion
   • G. Henrion
   • P. Heininger

   Original Papers Pages: 1 - 5

2. Determination of boron with chromotropic acid by first-derivative synchronous spectrofluorimetry

   • Fermín Capitán
   • Alberto Navalón
   • José L. Vilchez

   Original Papers Pages: 6 - 10

3. Fluorometric analysis of uranium(VI) by means of extraction and flying spot scanner

   • Norio Ichinose
   • Shigero Ikeda
   • Mina Toyama

   Original Papers Pages: 11 - 13

4. Heterogeneous equilibrium between solution and slightly soluble compound in flow injection analysis: Platinum(IV) determination

   • Liliana Ilcheva
   • Anastas Dakashev

   Original Papers Pages: 14 - 18

5. Spectrophotometric determination of palladium with 4-(2-pyridylazo)resorcinol

   • Anoop Kumar Chhakkar
   • L. R. Kakkar

   Original Papers Pages: 19 - 21

6. A new measuring device for the rapid coulometric determination of adsorbable organic halogen compounds

   • M. Hahn
   • H. H. Rüttinger
   • N. Lenk

   Original Papers Pages: 22 - 26

7. Determination of polycyclic aromatic hydrocarbons in Diesel soot by high-performance liquid chromatography

   • H.-J. Götze
   • J. Schneider
   • H.-G. Herzog

   Original Papers Pages: 27 - 30

8. Solid phase extraction/programmed temperature vaporizer (PTV) injection in GC-analysis of toxaphene and PCBs in aqueous samples

   • E. Stottmeister
   • H. Hermenau
   • W. Engewald

   Original Papers Pages: 31 - 34

9. Determination of copper, iron, manganese and zinc in river and estuarine water by atom trapping-flame atomic absorption spectrometry

   • Henryk Matusiewicz
   • Ralph Sturgeon
   • Kathy Moffatt

   Original Papers Pages: 35 - 40

10. Determination of arsenic, antimony, bismuth, selenium and tin in biological and environmental samples by continuous flow hydride generation ICP-AES without gas-liquid separator

    • P. Schramel
    • Li-Qiang Xu

    Original Papers Pages: 41 - 47

11. Radiochemical neutron activation analysis of traces of vanadium in biological samples: A comparison of prior dry ashing with post-irradiation wet ashing

    • A. R. Byrne
    • J. Kučera

    Original Papers Pages: 48 - 52

12. High-performance liquid chromatographic analysis of ampicillin and cloxacillin and its application to an intramammary veterinary preparation

    • D. Thorburn Burns
    • M. O'Callaghan
    • C. J. Ayling

    Original Papers Pages: 53 - 56

13. Spectrophotometric determination of iron(III) with o-hydroxyhydroquinonephthalein after preconcentration on a membrane filter

    • Itsuo Mori
    • Yoshikazu Fujita
    • Michiyo Kashiwagi

    Short Communications Pages: 57 - 59

14. Determination of ¹³⁴Cs and ¹³⁷Cs in fresh waters by sorption on freshly prepared Cu(II) hexacyanoferrate using gamma spectrometry

    • Z. Hölgye

    Short Communications Pages: 59 - 60

15. Determination of manganese(II) in botanical samples by AAS after its separation with Amberlite LA-2

    • A. Chatterjee
    • S. Basu

    Short Communications Pages: 61 - 62

16. International comparison of Cd content in a quality control material of Navajuelas (Tagelus dombeii) determined by anodic stripping voltammetry, atomic absorption spectrometry and neutron activation analysis

    • F. Queirolo
    • P. Ostapczuk
    • A. Sánchez

    Short Communications Pages: 63 - 64