1. Fluorometric and electrochemical methods for assay of biological and environmental substances

   • George G. Guilbault
   • S. S. Kuan
   • H. Winartasaputra

   OriginalPaper Pages: 125 - 138

2. Purification of orthodiphenol oxidoreductase from potatoes by affinity chromatography on coir pith lignin

   • Mahabaleshwar V. Hegde
   • Ashok V. Anvekar
   • Anant J. Mukhedkar

   OriginalPaper Pages: 139 - 145

3. Immobilization of protein on aldehyde-containing gels—I. Activation of hydrazide gel with glutaraldehyde

   • Fritz Pittner
   • Talia Miron
   • Meir Wilchek

   OriginalPaper Pages: 147 - 166

4. Immobilization of protein on aldehyde-containing gels—II. Activation of pyridine rings with cyanogen bromide

   • Fritz Pittner
   • Talia Miron
   • Meir Wilchek

   OriginalPaper Pages: 167 - 180

5. Book review

   • Albert Luderer

   BookReview Pages: 181 - 182

6. Book received

   Announcement Pages: 183 - 183