Document Detail


Separation of transition metals in nonaqueous media with capillary electrophoresis.
MedLine Citation:
PMID:  15844555     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The separation of transition metal Ni2+, Cu2+, Co2+, Zn2+, Cd2+ and Fe3+ in methanol was investigated by using different types of organic acids as complexing agents. In pure methanol, the weaker and simpler acetic, propionic, butyric and valeric acids could enhance metal ions selectivity by increasing acid concentration and metal ions could be separated with high efficiency. However, hydroxycarboxylic acids obviously made separation efficiency worse. The effect of mixed organic acids, mixture solvent (methanol-acetonitrile, methanol-water) on metal ions separation was discussed further. The advantages of using nonaqueous solvent over aqueous for metal ions separation were shown finally.
Authors:
Feng Qu; Jin-Ming Lin
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of chromatography. A     Volume:  1068     ISSN:  0021-9673     ISO Abbreviation:  J Chromatogr A     Publication Date:  2005 Mar 
Date Detail:
Created Date:  2005-04-22     Completed Date:  2005-10-07     Revised Date:  2009-01-15    
Medline Journal Info:
Nlm Unique ID:  9318488     Medline TA:  J Chromatogr A     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  169-74     Citation Subset:  IM    
Affiliation:
Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China.
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MeSH Terms
Descriptor/Qualifier:
Electrophoresis, Capillary / methods*
Metals / isolation & purification*
Solvents / chemistry
Chemical
Reg. No./Substance:
0/Metals; 0/Solvents

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