1. Criteria and algorithms for the choice of analytical wave-lengths in the quantitative spectrophotometric analysis of multicomponent mixtures

   • I. Y. Bershtein

   Original Papers Pages: 227 - 231

2. Die bivalente Fehlerschätzung in der Röntgenspektrometrie

   • Rolf Plesch

   Original Papers Pages: 232 - 236

3. Application of ferrous-chromate and iodometric titration for the determination of copper oxidation states in the superconductor YBa₂Cu₃O _y

   • Masaoki Oku
   • Jin Kimura
   • Kichinosuke Hirokawa

   Original Papers Pages: 237 - 241

4. Optimal conditions for the reduction of selenate to selenite by hydrochloric acid

   • Ragnar Bye
   • Walter Lund

   Original Papers Pages: 242 - 244

5. IPC behaviour of some sulphonated naphthols and nitroso-naphthols

   • H. Sirén
   • R. Dammert
   • L. Huhanantti

   Original Papers Pages: 245 - 249

6. Soil SO-1 reference material for trace analysis

   • B. Holyńska
   • J. Jasion
   • W. Baran

   Original Papers Pages: 250 - 254

7. Optical sensors

   • Otto S. Wolfbeis
   • Hermann E. Posch

   Original Papers Pages: 255 - 257

8. Peroxidase-catalysed fluorescence reaction using tyrosine as substrate

   • Yun-Xiang Ci
   • Lie Chen
   • Shan Wei

   Original Papers Pages: 258 - 260

9. Polarographic study of a benzodiazepinooxazole: Oxazolam

   • R. M. Alonso
   • R. M. Jiménez
   • F. Vicente

   Original Papers Pages: 261 - 265

10. Bestimmung tricyclischer Antidepressiva in Körperflüssigkeiten und Organmaterial mittels HPLC

    • L. Wedy
    • G. Bohn
    • G. Blaschke

    Original Papers Pages: 266 - 269

11. Zur Analytik mikrobiocider Isothiazolone

    • R. Matissek
    • R. Lehnguth

    Original Papers Pages: 270 - 274

12. New books

    BookReview Pages: 275 - 276

13. 1.1 Fundamentals, methods, apparatus, reagents, automation, data processing

    Abstracts Pages: 277 - 286

14. 1.2 Inorganic analysis

    Abstracts Pages: 286 - 291

15. 1.3 Organic analysis

    Abstracts Pages: 291 - 295

16. 2.2 Organic industrial products

    Abstracts Pages: 295 - 299

17. 2.3 Rocks, minerals, soils

    Abstracts Pages: 299 - 300

18. 2.4 Environmental matrices

    Abstracts Pages: 300 - 306

19. 2.5 Soils, plants and agricultural-technical products

    Abstracts Pages: 306 - 308

20. 2.6 Foods

    Abstracts Pages: 308 - 312

21. 2.7 Pesticides

    Abstracts Pages: 312 - 314

22. 2.8 Pharmaceuticals and cosmetics

    Abstracts Pages: 314 - 317

23. 3 Biochemical and clinical analysis

    Abstracts Pages: 318 - 324

24. Neue Geräte und Chemikalien

    Announcement Pages: A7 - A8