1. The potentiometric determination of stability constants of macrocyclic ethers using linear regression techniques

   • Ayten Göçmen
   • Çakıl Erk

   Original Papers Pages: 471 - 474

2. Influence of carrier gas pressure on permeation rates of the “Hartmann & Braun CGP”-NO₂-test gas generator

   • E. Moosbach
   • H. Hartkamp

   Original Papers Pages: 475 - 477

3. Determination of the oxygen balance in oxide superconductors by a photometric method

   • Zuzana Málková
   • Josef Novák
   • Zdena Pokorná

   Original Papers Pages: 478 - 479

4. Reductive coprecipitation and extraction as separation methods for the determination of gold in copper concentrates by AAS and ICP-AES

   • S. Arpadjan
   • L. Jordanova
   • I. Karadjova

   Original Papers Pages: 480 - 482

5. Extractive-spectrophotometric method for the determination of palladium using thiosalicylic acid and hexylamine

   • Anoop Kumar Chhakkar
   • Lajpat Rai Kakkar

   Original Papers Pages: 483 - 485

6. Studies on the coulometric determination of uranium and plutonium employing a graphite electrode

   • H. S. Sharma
   • R. B. Manolkar
   • S. G. Marathe

   Original Papers Pages: 486 - 490

7. Spectrophotometric flow injection analysis of formaldehyde in aqueous solutions using 3-methyl-2-benzthiazolinone hydrazone

   • R. Goebel
   • A. Krug
   • R. Kellner

   Original Papers Pages: 491 - 494

8. Non-linear spectral interferences in an inductively coupled plasma optimized for simultaneous multi-element analysis of plant and soil samples by atomic emission spectrometry

   • Lili Vuchkova
   • Sonja Arpadjan

   Original Papers Pages: 495 - 498

9. HPLC with electrode array detection

   • I. Bernwieser
   • G. Sontag

   Original Papers Pages: 499 - 501

10. Partial structure elucidation of the most abundant octa and nonachlorotoxaphene congeners in marine mammals by using conventional electron ionization mass spectrometry and mass spectrometry/mass spectrometry

    • Hans-Rudolf Buser
    • Michael Oehme
    • Bernd Luckas

    Original Papers Pages: 502 - 512

11. Solid phase extraction for the determination of ibuprofen by means of HPLC and UV detection in the lower ng range in plasma and urine

    • G. Berner
    • R. Staab
    • U. Vögtle-Junkert

    Original Papers Pages: 513 - 515

12. Acknowledgement to referees in 1993

    Acknowledgments Pages: 517 - 518