Spectrophotometric determination of cobalt by extraction of benzyltributylammonium tetrathiocyanatocobaltate(II)

Cobalt (0–120 μg) can be determined spectrophotometrically at 625 nm after its extraction as benzyltributylammonium tetrathiocyanatocobaltate(II) into chloroform at pH 7. The effects of pH, diverse ions and masking studies are reported. The method has been applied to the determination of cobalt (0.2...

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Bibliographic Details
Published inAnalytica chimica acta Vol. 355; no. 2; pp. 163 - 166
Main Authors Barakat, S.A, Rusan, M, Thorburn Burns, D
Format Journal Article
LanguageEnglish
Published Elsevier B.V 28.11.1997
Subjects
Cobalt(II)
Extraction
Spectrophotometry
Steels
Tetrathiocyanatocobaltate(II) benzyltributylammonium
Cobalt(II)
Extraction
Spectrophotometry
Steels
Tetrathiocyanatocobaltate(II) benzyltributylammonium
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Summary:Cobalt (0–120 μg) can be determined spectrophotometrically at 625 nm after its extraction as benzyltributylammonium tetrathiocyanatocobaltate(II) into chloroform at pH 7. The effects of pH, diverse ions and masking studies are reported. The method has been applied to the determination of cobalt (0.2–10.0%, w/w) in high speed tool steels without prior separation of iron, and in vitamin B12.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0003-2670
1873-4324
DOI:10.1016/S0003-2670(97)00500-X