1. The linear absorbances method adapted to systems with two interfering compounds

   • M. C. Pascual-Martí
   • R. Marín Saez
   • J. M. Iranzo Adrian

   Original Papers Pages: 305 - 313

2. Construction and evaluation of tubular potentiometric detectors sensitive to chloride, bromide, and iodide and based on homogeneous crystalline membranes

   • Isabel M. P. L. V. O. Ferreira
   • José L. F. C. Lima
   • Livio S. M. Rocha

   Original Papers Pages: 314 - 319

3. Arsenic speciation in waste waters by extraction chromatography followed by atomic absorption spectrometry

   • E. Russeva
   • I. Havezov
   • A. Detcheva

   Original Papers Pages: 320 - 323

4. Determination of ^206/207Pb isotope ratios by ICP-MS in particulate matter from the north sea environment

   • P. Krause
   • M. Kriews
   • M. Kersten

   Original Papers Pages: 324 - 329

5. Comparative characteristic studies on soil and commercial humic acids

   • Tu Qiang
   • Shan Xiao-quan
   • Ni Zhe-ming

   Original Papers Pages: 330 - 336

6. Development of non-destructive methods for the determination of airborne pollutants in pine needles: identification of trace constituents in radiata pine epicuticular wax

   • Robert A. Franich
   • Eva Jakobsson
   • Henrik Kylin

   Original Papers Pages: 337 - 343

7. General method for the liquid-liquid extraction of molybdenum and its application to neutron activation analysis

   • S. Bajo
   • L. Tobler
   • A. Wyttenbach

   Original Papers Pages: 344 - 350

8. Isotope dilution mass spectrometry of microelectronically relevant heavy metal traces in high-purity cobalt

   • Bernhard Beer
   • Klaus G. Heumann

   Original Papers Pages: 351 - 355

9. Flow injection flame atomic absorption analysis of Fe and Mn in cement samples

   • A. Salvador
   • R. Martinez-Avila
   • M. de la Guardia

   Original Papers Pages: 356 - 360

10. Determination of chlorinated paraffins by GC-MS

    • S. A. Junk
    • H.-U. Meisch

    Original Papers Pages: 361 - 364

11. Inverse gas-chromatographic method for the estimation of the vapour pressure of less volatile compounds

    • S. D. Bhagat

    Original Papers Pages: 365 - 367

12. Sensitive method for the measurement of citrate lyase activity by differential pulse polarography

    • Kiyoshi Hasebe
    • Satoshi Hikima
    • Teiji Kakizaki

    Original Papers Pages: 368 - 370

13. Elimination of spectral interferences in the reaction of 2-thiobarbituric acid with malonaldehyde, 2-furfuraldehyde and 5-hydroxymethyl-2-furfuraldehyde by partial least squares multivariate calibration (PLS)

    • A. Espinosa-Mansilla
    • A. Muñoz de la Peña
    • M. Martínez Galera

    Original Papers Pages: 371 - 375

14. Analysis of leukotriene B₄ as free acid and its δ-lactone by high-performance liquid chromatography: a study on the stability and formation of leukotriene B₄ δ-lactone

    • Dimitrios Tsikas
    • Joachim Fauler
    • Jürgen C. Frölich

    Original Papers Pages: 376 - 381

15. Indirect determination of bilirubin by linear sweep polarography

    • Baizhao Zeng
    • Xingyao Zhou

    Original Papers Pages: 382 - 387

16. On the characterization of surface VO_x-species by XPS: layered oxidic systems as model catalysts

    • J. Nickl
    • Ch. Schild
    • A. Wokaun

    Erratum Pages: 388 - 388