1. Editors' note

   • Howard H. Weetall
   • Klaus Mosbach
   • Meir Wilchek

   EditorialNotes Pages: 1 - 1

2. Denitrification and removal of heavy metals from waste water by immobilized microorganisms

   • R. P. Tengerdy
   • J. E. Johnson
   • J. Tóth

   Original Articles Pages: 3 - 13

3. The analysis of serum urate utilizing immobilized uricase

   • Janet S. Colliss
   • John M. Knox

   Original Articles Pages: 15 - 24

4. Determination of intrinsic properties of immobilized enzymes

   • Jose M. Guisán
   • Francisco V. Melo
   • Antonio Ballesteros

   Original Articles Pages: 25 - 36

5. Determination of intrinsic properties of immobilized enzymes

   • José M. Guisán
   • Francisco V. Melo
   • Antonio Ballesteros

   Original Articles Pages: 37 - 51

6. Recent advances in homogeneous and separation-free enzyme immunoassays

   • T. T. Ngo
   • H. M. Lenhoff

   Review Pages: 53 - 64

7. Applied biochemistry and biotechnology news

   Announcement Pages: 65 - 67

8. Patents and literature

   Announcement Pages: 69 - 77

9. Book reviews

   • Bhavender P. Sharma
   • Alexander M. Klibanov

   BookReview Pages: 79 - 82

10. Announcements

    Announcement Pages: 83 - 84