Determination of metal ions by high-performance liquid chromatographic separation of their hydroxamic acid chelates

Journal Article · Tue Sep 15 04:00:00 EDT 1987 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac00145a003· OSTI ID:6087893

Palmieri, M D; Fritz, J S

Metal ions are determined by adding N-methylfurohydroxamic acid to an aqueous sample and then separating the metal chelates by direct injection onto a liquid chromatographic column. Separations on a C/sub 8/ silica column and a polystyrene-divinylbenzene column are compared, with better separations seen on the polymeric column. The complexes formed at low pH values are cationic and are separated by an ion pairing mechanism. Retention times and selectivity of the metal complexes can be varied by changing the pH. Several metal ions can be separated and quantified; separation conditions, linear calibration curve ranges, and detection limits are presented for Zr(IV), Hf(IV), Fe(III), Nb(V), Al(III), and Sb(III). Interferences due to the presence of other ions in solution are investigated. Finally, an antiperspirant sample is analyzed for zirconium by high-performance liquid chromatography.

• Research Organization: Iowa State Univ., Ames
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 6087893
• Journal Information: Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 59:18; ISSN ANCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical & Spectral Procedures
400105 -- Separation Procedures
ABSORPTION SPECTROSCOPY
ALUMINIUM
AMINES
ANTIMONY
CATIONS
CHARGED PARTICLES
CHELATES
CHEMICAL ANALYSIS
CHROMATOGRAPHY
COMPLEXES
DATA
ELEMENTS
EXPERIMENTAL DATA
HAFNIUM
HYDROXAMIC ACIDS
HYDROXY COMPOUNDS
INFORMATION
INTERFERING ELEMENTS
IONS
IRON
LIQUID COLUMN CHROMATOGRAPHY
METALS
NIOBIUM
NUMERICAL DATA
ORGANIC COMPOUNDS
PH VALUE
QUANTITATIVE CHEMICAL ANALYSIS
QUANTITY RATIO
SEPARATION PROCESSES
SPECTROSCOPY
TRANSITION ELEMENTS
ZIRCONIUM