1. Analytical methodologies for chromium speciation in solid matrices: a survey of literature

   • M. J. Marqués
   • A. Salvador
   • M. de la Guardia

   Review Pages: 239 - 248

2. Pressure dependence of secondary ion emission from selected 3d, 4d, and 5d transition metals under N2O, NO, and NO2

   • W. Rybczynski
   • W. Seidel
   • H. D. von Zerssen

   Original paper Pages: 249 - 253

3. A convenient and practical procedure to derive correction factors to estimate atomic ratios by XPS

   • T. Nakamura
   • Atsushi Ogata
   • Retsu Oiwa

   Original paper Pages: 254 - 257

4. Dynamic adsorption and desorption of heavy metal ions on poly(acrylaminophosphonic-carboxyl-hydrazide) chelating fiber

   • R. Liu
   • Baowen Zhang
   • Hongxiao Tang

   Original paper Pages: 258 - 262

5. Redox-potentiometric/titrimetric analysis of aqueous iodine solutions

   • Waldemar Gottardi

   Original paper Pages: 263 - 269

6. Analytical reliability of carbonyl compound determination using 1,5-dansylhydrazine-derivatization

   • N. Binding
   • Holger Kläning
   • Ute Witting

   Original paper Pages: 270 - 273

7. Development of a solid-phase extraction and derivatization method for polar carboxylic acids from aqueous extracts of inorganic multi-component incineration residues

   • H. Hirschlag
   • R. Köster

   Original paper Pages: 274 - 280

8. The capability of ultrafiltration and ETV-ICP-MS for size fractionation studies of arsenic and selenium species in ground water samples with high concentrations of iron, manganese and sulfur

   • M. Rässler
   • B. Michalke
   • A. Kettrup

   Original paper Pages: 281 - 284

9. Determination of Cd, Cu, Pb and Sb in environmental samples by ICP-AES using polyaniline for separation

   • A. C. Sahayam

   Original paper Pages: 285 - 288

10. Sensitive determination of airborne diisocyanates by HPLC: 4,4′-Diphenylmethane-diisocyanate (MDI)

    • M. Schulz
    • T. Salthammer

    Original paper Pages: 289 - 293

11. Performance of total reflection and grazing emission X-ray fluorescence spectrometry for the determination of trace metals in drinking water in relation to other analytical techniques

    • B. Hołyńska
    • Mariusz Olko
    • Marijan Necemer

    Original paper Pages: 294 - 298

12. Comparison between CP/MAS 13C-NMR and pyrolysis-GC/MS in the structural characterization of humins and humic acids of soil and sediments

    • D. Fabbri
    • M. Mongardi
    • R. Scotti

    Original paper Pages: 299 - 306

13. Determination of carbaryl in foods by solid-phase room-temperature phosphorimetry

    • L. F. Capitán-Vallvey
    • Mahmoud K. A. Deheidel
    • R. Avidad

    Original paper Pages: 307 - 312

14. A new method for the analysis of arsenic species in urine by using HPLC-ICP-MS

    • J. Lintschinger
    • P. Schramel
    • B. Michalke

    Original paper Pages: 313 - 318

15. Determination of total iron in ground waters and multivitamin tablets using a solid-phase reactor with tiron immobilised on amberlite ion-exchange resin in a flow injection system

    • J. F. van Staden
    • L. G. Kluever

    Original paper Pages: 319 - 323

16. Determination of the ethylene oxide adduct S-(2-hydroxyethyl)cysteine by a fluorometric HPLC method in albumin and globin from human blood

    • Dörte M. Vollmer
    • R. Thier
    • Hermann M. Bolt

    Original paper Pages: 324 - 328

17. Methods for the determination of neutral drugs as well as betablockers and β2-sympathomimetics in aqueous matrices using GC/MS and LC/MS/MS

    • T. A. Ternes
    • Roman Hirsch
    • Klaus Haberer

    Original paper Pages: 329 - 340

18. Constant-wavelength synchronous spectrofluorimetry for determination of riboflavin in anchovies

    • T. J. López y López-Leytón
    • M. A. Lage Yusty
    • M. E. Alvarez Piñeiro

    Short communication Pages: 341 - 343

19. Determination of the pesticide Chlorpyrifos by cathodic adsorptive stripping voltammetry

    • M. S. El-Shahawi
    • M. M. Kamal

    Short communication Pages: 344 - 347