88 ANALYTICAL PROCEEDINGS. MARCH 1991, VOL 28 IUPAC Recommendations IUPAC has recently made available for terms. They have been harmonized with obtained on request from Dr. Alan public comment a document on nomen- other previously published IUPAC docu- McNaught, The Royal Society of clature of kinetic methods of analysis. The ments. Chemistry, Thomas Graham House, report lists, in alphabetical order, names IUPAC welcomes comments on these Science Park, Milton Road, Cambridge and definitions of the 41 terms most definitions prior to the production of a CB4 4WF. In order that comments may widely used. These include kinetic, dif- definitive version for publication in Pure be considered by IUPAC, they should be ferential-kinetic, catalytic and enzymic Appl. Chem. Copies of the text may be received by October 31st, 1991.