1. An overview on the standardization of chromatographic methods for screening analysis in toxicology by means of retention indices and secondary standards

   • Jan Piet Franke
   • Maciej Bogusz
   • Rokus A. de Zeeuw

   Reviews Pages: 67 - 72

2. An overview on the standardization of chromatographic methods for screening analysis in toxicology by means of retention indices and secondary standards

   • Maciej Bogusz
   • Jan Piet Franke
   • Manfred Erkens

   Reviews Pages: 73 - 81

3. Mono-standard calibration approach to multi-element XRF analysis of thin films using polychromatic excitation

   • P. P. Coetzee
   • R. Bloem

   Original Papers Pages: 82 - 86

4. A method for the coulometric determination of the flow rate

   • H. Kupka
   • M. Luitjens
   • K. G. Dalsaß

   Original Papers Pages: 87 - 91

5. Sliding spark spectroscopy

   • Timur Seidel
   • Alfred Golloch
   • Günther Böhm

   Original Papers Pages: 92 - 102

6. An efficient flow-injection system with on-line gas diffusion preconcentration for the determination of trace amounts of ammonium nitrogen at μg/L levels by spectrophotometry

   • Shihua Fan
   • Hanswilly Müller
   • Wolfgang Böhme

   Original Papers Pages: 103 - 106

7. Separation and determination of trace amounts of barium as its thenoyltrifluoroacetone complex with dibenzo-18-crown-6 by means of synergistic extraction and flame photometry

   • M. Billah
   • T. Honjo
   • K. Terada

   Original Papers Pages: 107 - 110

8. X-ray fundamental parameter methods for the determination of some elements in hydrocarbons by WDXRF

   • Antoni Marchut

   Original Papers Pages: 111 - 113

9. Application of the ratio spectra derivative spectrophotometry to the analysis of cephradine and clavulanic acid in binary mixtures

   • J. A. Murillo
   • J. M. Lemus
   • L. F. Garcia

   Original Papers Pages: 114 - 118

10. Accurate determination of lead in wines by inductively coupled plasma mass spectrometry

    • Jan Goossens
    • Tom De Smaele
    • Richard Dams

    Original Papers Pages: 119 - 125

11. New method for the determination of residues of oxydemeton methyl in mustard crop by gas chromatography of its sulphone

    • Irani Mukherjee
    • Madhuban Gopal

    Original Papers Pages: 126 - 128

12. Determination of volatile chlorinated hydrocarbons and trichloroacetic acid in conifer needles by headspace gas-chromatography

    • J. Plümacher
    • I. Renner

    Original Papers Pages: 129 - 135

13. Determination of benzidine in urine using capillary gas chromatography and negative-ion chemical ionisation mass spectrometry

    • Kazik Jedrzejczak
    • Virindar S. Gaind

    Original Papers Pages: 136 - 140

14. Elimination of the acetate interference in potassium-selective valinomycin-PVC-membranes for process-controlling during haemodialysis

    • B. M. Buchheister
    • K. Herna
    • J. G. Schindler

    Original Papers Pages: 141 - 144

15. Potentiometric determination of the protonation constants of N-methyl substituted ehtylene and propylene diamines in 1 mol/l KNO₃

    • R. Garner
    • J. Yperman
    • L. C. Van Poucke

    Short Communication Pages: 145 - 146