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

Abstract

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.

Authors:
;
Publication Date:
Research Org.:
Iowa State Univ., Ames
OSTI Identifier:
6087893
DOE Contract Number:  
W-7405-ENG-82
Resource Type:
Journal Article
Journal Name:
Anal. Chem.; (United States)
Additional Journal Information:
Journal Volume: 59:18
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ALUMINIUM; ABSORPTION SPECTROSCOPY; LIQUID COLUMN CHROMATOGRAPHY; ANTIMONY; HAFNIUM; IRON; NIOBIUM; ZIRCONIUM; CATIONS; CHELATES; EXPERIMENTAL DATA; HYDROXAMIC ACIDS; INTERFERING ELEMENTS; PH VALUE; QUANTITATIVE CHEMICAL ANALYSIS; QUANTITY RATIO; AMINES; CHARGED PARTICLES; CHEMICAL ANALYSIS; CHROMATOGRAPHY; COMPLEXES; DATA; ELEMENTS; HYDROXY COMPOUNDS; INFORMATION; IONS; METALS; NUMERICAL DATA; ORGANIC COMPOUNDS; SEPARATION PROCESSES; SPECTROSCOPY; TRANSITION ELEMENTS; 400102* - Chemical & Spectral Procedures; 400105 - Separation Procedures

Citation Formats

Palmieri, M D, and Fritz, J S. Determination of metal ions by high-performance liquid chromatographic separation of their hydroxamic acid chelates. United States: N. p., 1987. Web. doi:10.1021/ac00145a003.
Palmieri, M D, & Fritz, J S. Determination of metal ions by high-performance liquid chromatographic separation of their hydroxamic acid chelates. United States. doi:10.1021/ac00145a003.
Palmieri, M D, and Fritz, J S. Tue . "Determination of metal ions by high-performance liquid chromatographic separation of their hydroxamic acid chelates". United States. doi:10.1021/ac00145a003.
@article{osti_6087893,
title = {Determination of metal ions by high-performance liquid chromatographic separation of their hydroxamic acid chelates},
author = {Palmieri, M D and Fritz, J S},
abstractNote = {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.},
doi = {10.1021/ac00145a003},
journal = {Anal. Chem.; (United States)},
number = ,
volume = 59:18,
place = {United States},
year = {1987},
month = {9}
}