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Spectrophotometric Determination of Cobalt in Vitamin Preparations, Steel and Iron Using 2-Hydroxy- 1-Naphthaldehyde Guanylhydrazone

 

作者: F. Salinas,   J.J. Berzas Nevado,   A.Espinosa Mansilla,  

 

期刊: Analytical Letters  （Taylor Available online 1988）
卷期: Volume 21, issue 11  

页码: 2011-2016

 

ISSN:0003-2719

 

年代: 1988

 

DOI:10.1080/00032718808059887

 

出版商: Taylor & Francis Group

 

关键词: Cobalt(II) determination;spectrophotometry;vitamin preparations;steel;iron

 

数据来源: Taylor

 

摘要:

A new spectrophotometric determination of cobalt with 2-hydroxy-1-naphthaldehyde guanylhydrazone in acid medium is described. The method is developed on the basis of a yellow cobalt (III) complex (molar absorptivity 1.32×10−4L.mol−1.cm−1at 416 nm, stoichiometry 2:1). The method was applied to the determination of cobalt in vitamin preparations, steel and high-purity iron.

 

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