•  
  •  
 

Document Type

Research

Abstract

In the course of an investigation of the oxidation reduction potentials of some organic systems, it was found impossible to obtain concordant measurements by the ordinary methods. Accordingly, we turned to the polarographic method first developed by Prof. J. Heyrovsky of the University of Prague and recently gaining favor in this country. The polarographic method consists of applying, by means of a dropping mercury electrode, a steadily increasing electromotive force to a solution of some substance which can be reduced. Current and voltage are measured and recorded graphically. There is little current increase with respect to voltage until a point is reached where the voltage is sufficient to reduce the substance. The current then rises suddenly until the rate of the reaction becomes steady, when the curve again flattens out to a gentle slope as before. A whole series of reducible substances may be determined from the same solution in this way if their reduction potentials differ by as much as .2 volt.

Publication Date

1941

Journal Title

Proceedings of the Iowa Academy of Science

Volume

48

Issue

1

First Page

267

Last Page

271

Copyright

© Copyright 1941 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

Share

COinS
 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.