New chelating reagents for the separation of metal complexes by high performance liquid chromatography

Technical Report · Sun Jul 01 04:00:00 EDT 1990

DOI:https://doi.org/10.2172/6825817· OSTI ID:6825817

Main, M V

New chelating reagents for the complexation of metal ions in aqueous samples have been developed. The reagents synthesized and tested were 2,6-diacetylpyridine bis(N-methylenepyridiniohydrazone) dichloride (abbreviated H{sub 2}dapmp), 2,6-diacetylpyridine bis(N-methylene-N,N,N-trimethylammonio-hydrazone) dichloride (abbreviated H{sub 2}dapmta), and 2-acetylpyridine-4-ethyl-3-thiosemicarbazone (abbreviated Hapet). All three chelating reagents proved to be useful for the separation and determination of metal ions by reverse-phase high performance liquid chromatography. Both H{sub 2}dapmp and H{sub 2}dapmta formed kinetically stable metal complexes that did not dissociate on the chromatographic column.

• Research Organization: Ames Lab., IA (USA)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 6825817
• Report Number(s): IS-T-1466; ON: DE90014427
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical & Spectral Procedures
AZINES
CARBAZONES
CARBONIC ACID DERIVATIVES
CHELATING AGENTS
CHEMICAL PREPARATION
CHROMATOGRAPHY
COMPLEXES
HETEROCYCLIC COMPOUNDS
HYDRAZONES
LIQUID COLUMN CHROMATOGRAPHY
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PYRIDINES
RARE EARTH COMPLEXES
SEPARATION PROCESSES
SYNTHESIS