Applied Polarography and Voltammetry of Organic Compounds in Pratical Day-To-Day Analysis Part II

Abstract

In organic chemistry, polarography and voltammetry are most frequently applied for the solution of (1) practical, mainly analytical, problems. To show the scope and possibilities of these techniques in the analysis of dyes, agricultrual products, plastics, and pharmaceutical materials we shall briefly, and in a nonexhaustive way, discuss some practical examples. Polarography can also be used for (2) the solution of electrochemical problems, and (3) to provide useful information on fundamental problems of organic chemistry such as determination of equilibrium constants, and rate constants for fast (t,1/2 <0.5 sec) and slow (T,1/2 < 10 sec) reactions, detection of intermediates, etc. The reproducibility of polarographic measurements (about 3%) allows obtaining of kinetic data with a precision comparable to that of most other methods used in reactions kinetics. Because applications of the types (2) and (3) have been covered in sufficient detail elsewhere,136, 195, 345, 346 we shall restrict our discussion to...