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Separation of silver from zinc, cadmium, copper, nickel and other elements in nitric acid with a macroporous resin.
MedLine Citation:
PMID:  18963925     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
Traces of silver and amounts up to 50 mg can be separated from up to gram amounts of Zn, Cu(II), Ni, Co(II), Mg, Be, Ti(IV), V(IV), Li and Na by eluting these with 2.0M nitric acid from a column containing 54 ml (20 g) of macroporous AG MP-50 cation-exchange resin of 100-200 mesh particle size, in the H(+)-form. Silver is retained and can be eluted with 0.5M hydrobromic acid in 9:1 v v acetone-water. Separations are sharp and quantitative and only a few microg of the other elements are found in the silver fraction. Cadmium and manganese (II) can also be separated quantitatively but show tailing and require larger elution volumes. Some typical elution curves and results of analyses of synthetic mixtures are presented.
Authors:
F W Strelow
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Talanta     Volume:  32     ISSN:  0039-9140     ISO Abbreviation:  Talanta     Publication Date:  1985 Oct 
Date Detail:
Created Date:  2008-10-30     Completed Date:  2009-12-14     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  2984816R     Medline TA:  Talanta     Country:  England    
Other Details:
Languages:  eng     Pagination:  953-6     Citation Subset:  -    
Affiliation:
National Chemical Research Laboratory, P.O. Box 395, Pretoria, Republic of South Africa.
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