Ion floatation-spectrophotometric determination of palladium(II) content in acetaldehyde catalyst

The nature of palladium (I) and copper (II) is very similar, so it is very difficult to determine trace palladium (II) in the coexistence of a great quantity of copper (II). This paper applied ion floatation-spectrophotometric principle, using 1-(2-pyridylazo)-2-naphthol (PAN) as collector, and thro...

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Bibliographic Details
Published inGuang pu xue yu guang pu fen xi Vol. 24; no. 3; p. 345
Main Authors Dong, Hui-ru, Zhang, Jing-chang, Hu, Shao-cheng
Format Journal Article
LanguageChinese
Published China 01.03.2004
Subjects
Acetaldehyde - chemistry
Catalysis
Ions - chemistry
Naphthols - chemistry
Palladium - analysis
Spectrophotometry - methods
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Summary:The nature of palladium (I) and copper (II) is very similar, so it is very difficult to determine trace palladium (II) in the coexistence of a great quantity of copper (II). This paper applied ion floatation-spectrophotometric principle, using 1-(2-pyridylazo)-2-naphthol (PAN) as collector, and through controlling pH of the solution and determination wavelength, without separation to determine palladium (II) content in acetaldehyde catalyst with a great quantity of copper (II). The relative error was 0.61%, and RSD was 2.33%. The results were satisfactory.
ISSN:1000-0593