Porphyrins in analytical chemistry. A review

The porphyrins, naturally occurring macrocyclic compounds, have, in the las t 10 years, gained increasing interest in analytical chemistry. This review based on 123 original literature references, mostly published in the 1990s , presents catalytic applications of metalloporphyrins in electroanalysis a s electroactive agents in ion selective membranes, as unique reagents in sp ectrophotometry and as new stationary phases offering unusual resolution in HPLC. The collected data are also presented in four tables. (C) 2000 Elsev ier Science B.V. All rights reserved.