66-2367. 84. "Rates of Thiol-Disulfide Interchange Reactions between Mono- and Dithiols and Ellman's Reagent", Whitesides, G. M., Ulbum, J. E. and Szajewski, R. P., J. Org. Chem., 1977, 42, 332-338. 83. "Covalent Immobilization of Adenylate Kinase and Acetate Kinase in Polyacrylamide Gels: Enzymes for