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- E-ISSN 2288-8985
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A Study on the Elution Behavior of some Metal-N-Alkylisonitrosoacetylacetone imine Chelates by Reversed Phase High Performance Liquid Chromatography
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1992, v.5 no.1, pp.63-71
Kim,
Y. J., Kewon,
J. H., &
Lee,
W.
(1992). A Study on the Elution Behavior of some Metal-N-Alkylisonitrosoacetylacetone imine Chelates by Reversed Phase High Performance Liquid Chromatography. Analytical Science and Technology, 5(1), 63-71.
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Abstract
Liquid chromatographic behavior of Pd(II), Ni(II) and Co(III) in N-Alkylisonitrosoacetylacetone imine(HIAA-NR) chelates was investigated by reversed phase high perfomance liquid chromatography. The optimum conditions for the separation of IAA-NR-metal chelates were examined respect to the flow rate and mobile phase strength. The metal-N-Alkylisonitrosoacetylacetone imine chelates in solution were successfully separated on Novapak <TEX>$C_{18}$</TEX> column using acetonitrile/water mixture as mobile phase. The elution order of chelates is methyl>ethyl>propyl>butyl as N-alkyl group for ligand is varied. It was found that all IAA-NR-metal chelates were eluted in an acceptable range of capacity factor value(<TEX>$0{\leq}log\;k^{\prime}{\leq}1$</TEX>). The dependence of log k' on the volume fraction of water in the binary mobile phase was examined. Also, the dependence of k' on the liquid-liquid extraction distribution ratio(Dc) in acetonitrile-water-alkane extraction system was investigated for IAA-NR-metal chelate. Both kinds of dependence are linear, which suggests that the retention of the electroneutral metal chelates on Novapak <TEX>$C_{18}$</TEX> column is largely due to the hydrophobic effect.
- keywords
- Reversed phase HPLC, N-Alkylisonitrosoacetylacetone imine(HIAA-NR)
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