ANALYTICAL
CHEMISTRY
Copyright 1950 byAmericanChemicalSociety
Volume 22, No. 11
EDITOR
Issued November 14, 1950
WALTER J. MURPHY
Associate Editor: LAWRENCE T. HALLETT
Executive Editor: JAMES M. CROWE
Advisory Board
Contributing Editor R. H. MÜLLER
Assistant to Editor: N. A . PARKINSON
K. K. CHEN P. J. ELVING W. A . KlRKLIN I. M. KOLTHOFF H. A . LAITINEN M. G. MELLON
Editorial Assistants
Assistant Editors
DOROTHY M . ADAMS KATHERINE I. BIGGS RUTH CORNETTE
Manuscript Editing: G. GLADYS GORDON Manuscript Reviewing: STELLA ANDERSON Make-up: CHARLOTTE C. SAYRE
1341
EDITORIAL
EILEEN F. GILLESPIE ALBERTA L. KELVIE BETTY V . KlEFFER
R. H. MÜLLER B. L. OSER
C. J . RODDEN J. W.
STILLMAN
W. J. SWEENEY EDWARD WlCHERS
Oxidation of Chromium(lll) with Potassium Ferrale(VI) J. M . Schreyer, G. W . Thompson, and L. T. Ockerman 1420
SEPARATIONS I N A N A L Y T I C A L CHEMISTRY. Third Annual Summer Symposium
Photometric Determination r
