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Spectrophotometric determination of iron and cobalt with Ferrozine and dithizone.

Authors
  • Dawson, M V
  • Lyle, S J
Type
Published Article
Journal
Talanta
Publisher
Elsevier
Publication Date
Dec 01, 1990
Volume
37
Issue
12
Pages
1189–1191
Identifiers
PMID: 18965094
Source
Medline
License
Unknown

Abstract

Procedures are described whereby iron (1-50 microg) and cobalt (1-25 microg) are determined spectrophotometrically, iron as iron(II) with the disodium salt of 3-(2-pyridyl)-5,6-bis(4-phenylsulfonic acid)-1,2,4-triazine (Ferrozine) and cobalt as the cobalt(III) dithizonate complex. The reduction to iron(II) prevents interference of iron(III) in the cobalt determination, and both metals can be determined in the same portion of sample solution. Removal of interference by other metal ions is described.

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